Today's Message Index:
----------------------
1. 12:49 AM - Re: Re: Adjusting screw torque (James, Clive R)
2. 12:58 AM - Re: Adjusting screw torque (4aplat)
3. 01:17 AM - Re: Re: Adjusting screw torque (Rob Turk)
4. 01:33 AM - Re: Adjusting screw torque (4aplat)
5. 03:23 AM - Re: Adjusting screw torque (Lynn Matteson)
6. 09:14 AM - Re: Re: Adjusting screw torque (James, Clive R)
7. 09:25 AM - Re: Adjusting screw torque (James, Clive R)
8. 10:30 AM - Re: Adjusting screw torque (4aplat)
9. 12:46 PM - Re: Re: Adjusting screw torque (Keith Pickford)
10. 01:02 PM - Re: Re: Adjusting screw torque (James, Clive R)
11. 01:13 PM - Re: Re: Adjusting screw torque (James, Clive R)
12. 02:25 PM - Re: Adjusting screw torque (Bob Haas)
13. 11:35 PM - Re: Re: Adjusting screw torque (Rob Turk)
Message 1
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| Subject: | Re: Adjusting screw torque |
Hello again Michel.
I'm afraid the picture didn't come through, send it direct to my E mail
address.
I don't think there is a torque number for the adjusting screw locknut.
I have heard of these breaking and usually it is because the locknut is
done up too tight.
People are worried the locknut will come loose but in practice if the
locknut is tightened up just by feel this is sufficient. Certainly
nothing like 24 ft/lbs. more like 8. Next time I have the covers off
I'll try it with a torque wrench.
A lot more force is needed to undo the lock nut than do go it up. Try
locking and unlocking a few times with a light force. If the adjusting
screw is the type that takes a hexagon wrench this weakens it so it is
nothing like a normal set screw. Later ones have changed to a solid
screw I think.
There is too much messing about with tappet adjusting. In reality with a
metal to metal head to barrel joint the tappet clearance will not
change. On the very old engines when you pull up a head bolt you are
often twisting the head (even at the right torque as the ally was poor).
Cleaning out the bolt holes so it's a true torque to the bolt is
important. The twist of the head caused locking onto the bolt shank. If
you feel this the bolt hole will need clearing out. An ordinary drill
will do it though there used to be talk of 'reaming' I drilled mine and
they were fine.
I set to 12 thou clearance and providing next time I still have more
than 10 and I can get a 12 feeler gauge 'in' I don't mess with adjusting
the tappet.
In time there is wear in the tappet face and bush and this will need
adjusting out but that is after many hours. That is when with a 12 thou
feeler in the gap you can rattle the tappet.
Regards, Clive
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
4aplat
Sent: 12 October 2010 19:38
Subject: JabiruEngine-List: Re: Adjusting screw torque
--> <ulm@ascenseur-parisien.com>
Hi Clive
I'm speaking about the screw on the Rocker Arm.
Itorked the head at 24 ft.lbs but the screw broke (see the picture)
MicheL
Clive J wrote:
> Michel, what adjusting screw do you refer to?
> A screw on what?
>
> Regards, clive
>
> --
--------
the French Jabiru Forum
http://jabiru-owner.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315449#315449
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| Subject: | Re: Adjusting screw torque |
HI clive
thank's for the answer
here are the pictures (just copy and glue in your browser)
http://jabiru-owner.com/images/pdf/vis01.jpg
http://jabiru-owner.com/images/pdf/vis02.jpg
I found the torke value in this document :
http://www.jabirupacific.com/pdf/HeadTorqueValveSetting.pdf
MicheL
--------
the French Jabiru Forum
http://jabiru-owner.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315527#315527
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| Subject: | Re: Adjusting screw torque |
Ouch... Please read the head torque document over once more. Each time it
mentions 24ft/lb it only refers to the 6 cylinder head bolts.
Rob
----- Original Message -----
From: "4aplat" <ulm@ascenseur-parisien.com>
Sent: Wednesday, October 13, 2010 9:56 AM
Subject: JabiruEngine-List: Re: Adjusting screw torque
> <ulm@ascenseur-parisien.com>
>
> HI clive
>
>
> thank's for the answer
>
> here are the pictures (just copy and glue in your browser)
>
> http://jabiru-owner.com/images/pdf/vis01.jpg
>
> http://jabiru-owner.com/images/pdf/vis02.jpg
>
> I found the torke value in this document :
>
> http://www.jabirupacific.com/pdf/HeadTorqueValveSetting.pdf
>
> MicheL
>
> --------
> the French Jabiru Forum
> http://jabiru-owner.com
>
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| Subject: | Re: Adjusting screw torque |
reading
> Adjust the tappets when the engine is
> cold. Head torqued to 24 ft lb. when cold. Carry out this adjustment after five
hours of
> operation and again after ten hours of operation. At the 25 hour inspection this
is done
> again.
I supposed 24ftlb was the torque for the nut (as it is int the "tapped adjustment"
paragraph
MicheL (not very good in english)
matronics(at)rtist.nl wrote:
> Ouch... Please read the head torque document over once more. Each time it
> mentions 24ft/lb it only refers to the 6 cylinder head bolts.
>
> Rob
>
> ---
--------
the French Jabiru Forum
http://jabiru-owner.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315530#315530
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| Subject: | Re: Adjusting screw torque |
Clive, I just figured he was talking about the valve adjusting screw,
but I thought he or someone else would clarify this. I don't know the
torque setting for that screw/jam nut, as I have always just snugged
them up and then added a "bit for good measure"....this is a case
where us old mechanics had this "torque figure" written into our
DNA. : )
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Sensenich 62"x46" Wood (summer)
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying...1054 hrs (since 3-27-2006)
On Oct 12, 2010, at 1:40 PM, James, Clive R wrote:
> <clive.james@uk.bp.com>
>
> Michel, what adjusting screw do you refer to?
> A screw on what?
>
> Regards, clive
>
> -----Original Message-----
> From: owner-jabiruengine-list-server@matronics.com
> [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
> 4aplat
> Sent: 12 October 2010 17:40
> To: jabiruengine-list@matronics.com
> Subject: JabiruEngine-List: Adjusting screw torque
>
> --> <ulm@ascenseur-parisien.com>
>
> Hi
>
> For my #570 2200 Jab engine I'm looking for the torque I'm supposed to
> apply on the adjusting screw
>
> I'm not able to found it in the "J2200 Engine Maintenance Solid Valve
> Lifter Models Manual"
>
> thanks in advance
>
> MicheL
>
>
> --------
> the French Jabiru Forum
> http://jabiru-owner.com
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=315432#315432
>
>
Message 6
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| Subject: | Re: Adjusting screw torque |
Indeed the wording is not good.
Need to be careful with 24 ft/lbs, this doesn't apply to all engines. I
believe it's 18, 20 and 24 depending on which engine you have (I maybe
wrong about the 18, I only have a 2000 and a 2003 manual here).
Regards, Clive
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
4aplat
Sent: 13 October 2010 09:31
Subject: JabiruEngine-List: Re: Adjusting screw torque
--> <ulm@ascenseur-parisien.com>
reading
> Adjust the tappets when the engine is cold. Head torqued to 24 ft lb.
> when cold. Carry out this adjustment after five hours of operation and
> again after ten hours of operation. At the 25 hour inspection this is
> done again.
I supposed 24ftlb was the torque for the nut (as it is int the "tapped
adjustment" paragraph
MicheL (not very good in english)
matronics(at)rtist.nl wrote:
> Ouch... Please read the head torque document over once more. Each time
it
> mentions 24ft/lb it only refers to the 6 cylinder head bolts.
>
> Rob
>
> ---
--------
the French Jabiru Forum
http://jabiru-owner.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315530#315530
Message 7
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| Subject: | Adjusting screw torque |
'nip it up, and a bit'
I do know of a plane that ended up upside down in a field, one of the
tappet adjusters worked loose and the valve stopped opening. Power
dropped off, 2 POB, couldn't maintain altitude, long crop. Bingo.
I always assumed the nut must have been missed rather than not done up
enough but we'll never know....
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Lynn
Matteson
Sent: 13 October 2010 11:21
Subject: Re: JabiruEngine-List: Adjusting screw torque
--> <lynnmatt@jps.net>
Clive, I just figured he was talking about the valve adjusting screw,
but I thought he or someone else would clarify this. I don't know the
torque setting for that screw/jam nut, as I have always just snugged
them up and then added a "bit for good measure"....this is a case where
us old mechanics had this "torque figure" written into our DNA. : )
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Sensenich 62"x46" Wood (summer)
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying...1054 hrs (since 3-27-2006)
On Oct 12, 2010, at 1:40 PM, James, Clive R wrote:
> <clive.james@uk.bp.com>
>
> Michel, what adjusting screw do you refer to?
> A screw on what?
>
> Regards, clive
>
> -----Original Message-----
> From: owner-jabiruengine-list-server@matronics.com
> [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
> 4aplat
> Sent: 12 October 2010 17:40
> To: jabiruengine-list@matronics.com
> Subject: JabiruEngine-List: Adjusting screw torque
>
> --> <ulm@ascenseur-parisien.com>
>
> Hi
>
> For my #570 2200 Jab engine I'm looking for the torque I'm supposed to
> apply on the adjusting screw
>
> I'm not able to found it in the "J2200 Engine Maintenance Solid Valve
> Lifter Models Manual"
>
> thanks in advance
>
> MicheL
>
>
> --------
> the French Jabiru Forum
> http://jabiru-owner.com
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=315432#315432
>
>
Message 8
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| Subject: | Re: Adjusting screw torque |
Hi Clive
Is it possible to know where it's possible to find 18 (20 or 24) in the manual
?
thanks in advance
MIcheL
Clive J wrote:
> Indeed the wording is not good.
>
> Need to be careful with 24 ft/lbs, this doesn't apply to all engines. I
> believe it's 18, 20 and 24 depending on which engine you have (I maybe
> wrong about the 18, I only have a 2000 and a 2003 manual here).
>
> Regards, Clive
>
> --
--------
the French Jabiru Forum
http://jabiru-owner.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315595#315595
Message 9
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| Subject: | Re: Adjusting screw torque |
>From memory 24 ft/lb is the assembly torque - rechecks are at 20 ft/lb for
head studs
-
Rgds
Keith
--- On Thu, 14/10/10, 4aplat <ulm@ascenseur-parisien.com> wrote:
From: 4aplat <ulm@ascenseur-parisien.com>
Subject: JabiruEngine-List: Re: Adjusting screw torque
om>
Hi Clive
Is it possible to know where it's possible to find 18 (20 or 24) in the man
ual ?
thanks in advance
MIcheL
Clive J wrote:
> Indeed the wording is not good.
>
> Need to be careful with 24 ft/lbs, this doesn't apply to all engines. I
> believe it's 18, 20 and 24 depending on which engine you have (I maybe
> wrong about the 18, I only have a 2000 and a 2003 manual here).
>
> Regards, Clive
>
> --
--------
the French Jabiru Forum
http://jabiru-owner.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315595#315595
le, List Admin.
Message 10
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| Subject: | Re: Adjusting screw torque |
Section 5.3 'Initial after 25 hours checks'
in all the manuals I have here.
I recall lately there is two torques, one for building the engine and
one for checking afterwards.
The setting in 5.3 is the one to check for.
What is your serial number of the engine and what engine? 2200/3300?
Regards, Clive
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
4aplat
Sent: 13 October 2010 18:28
Subject: JabiruEngine-List: Re: Adjusting screw torque
--> <ulm@ascenseur-parisien.com>
Hi Clive
Is it possible to know where it's possible to find 18 (20 or 24) in the
manual ?
thanks in advance
MIcheL
Clive J wrote:
> Indeed the wording is not good.
>
> Need to be careful with 24 ft/lbs, this doesn't apply to all engines.
> I believe it's 18, 20 and 24 depending on which engine you have (I
> maybe wrong about the 18, I only have a 2000 and a 2003 manual here).
>
> Regards, Clive
>
> --
--------
the French Jabiru Forum
http://jabiru-owner.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315595#315595
Message 11
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| Subject: | Re: Adjusting screw torque |
So from the manual below, if you can see the 'zapgrab' picture generally
it's 20-22ft lbs
This is from section 7. This is manual has been updated from the one I
got with my engine, I only have that on paper and I recall that being 18
ft lbs, the front cover of this manual I just downloaded from the Jab
Aus site says it's applicable to all 2200a engines. The 'soft headed'
ones all surely bend at 22 lbs...
What vintage is your engine? And the heads?
Regards, Clive
-----Original Message-----
From: James, Clive R
Sent: 13 October 2010 21:00
Subject: RE: JabiruEngine-List: Re: Adjusting screw torque
Section 5.3 'Initial after 25 hours checks'
in all the manuals I have here.
I recall lately there is two torques, one for building the engine and
one for checking afterwards.
The setting in 5.3 is the one to check for.
What is your serial number of the engine and what engine? 2200/3300?
Regards, Clive
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com [
mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of 4aplat
Sent: 13 October 2010 18:28
Subject: JabiruEngine-List: Re: Adjusting screw torque
--> <ulm@ascenseur-parisien.com>
Hi Clive
Is it possible to know where it's possible to find 18 (20 or 24) in the
manual ?
thanks in advance
MIcheL
Clive J wrote:
> Indeed the wording is not good.
>
> Need to be careful with 24 ft/lbs, this doesn't apply to all engines.
> I believe it's 18, 20 and 24 depending on which engine you have (I
> maybe wrong about the 18, I only have a 2000 and a 2003 manual here).
>
> Regards, Clive
>
> --
--------
the French Jabiru Forum
http://jabiru-owner.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315595#315595
Message 12
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| Subject: | Adjusting screw torque |
That always worked for me. Bob Haas
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Lynn
Matteson
Sent: Wednesday, October 13, 2010 6:21 AM
Subject: Re: JabiruEngine-List: Adjusting screw torque
Clive, I just figured he was talking about the valve adjusting screw,
but I thought he or someone else would clarify this. I don't know the
torque setting for that screw/jam nut, as I have always just snugged
them up and then added a "bit for good measure"....this is a case
where us old mechanics had this "torque figure" written into our
DNA. : )
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Sensenich 62"x46" Wood (summer)
Electroair direct-fire ignition system
Rotec TBI-40 injection
Status: flying...1054 hrs (since 3-27-2006)
On Oct 12, 2010, at 1:40 PM, James, Clive R wrote:
> <clive.james@uk.bp.com>
>
> Michel, what adjusting screw do you refer to?
> A screw on what?
>
> Regards, clive
>
> -----Original Message-----
> From: owner-jabiruengine-list-server@matronics.com
> [mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
> 4aplat
> Sent: 12 October 2010 17:40
> To: jabiruengine-list@matronics.com
> Subject: JabiruEngine-List: Adjusting screw torque
>
> --> <ulm@ascenseur-parisien.com>
>
> Hi
>
> For my #570 2200 Jab engine I'm looking for the torque I'm supposed to
> apply on the adjusting screw
>
> I'm not able to found it in the "J2200 Engine Maintenance Solid Valve
> Lifter Models Manual"
>
> thanks in advance
>
> MicheL
>
>
> --------
> the French Jabiru Forum
> http://jabiru-owner.com
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=315432#315432
>
>
Message 13
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| Subject: | Re: Adjusting screw torque |
One remark on this. The text mentions not to back off the studs. After
working with Roger on my engine and discussing I am convinced that's bad
advice.
The bolts go all the way through the head and screw into the cylinder.
On my engine, the exposed threads had corrosion on them. This corrosion
caused the bolts not to move at 24lbs even though the heads were
starting to leak. Do check for corrosion, use WD40 or similar to
lubricate the corroded end and back off the stud a little bit. Then
retighten at 24lbs/ft (or whatever your vintage manual tells you).
Rob
----- Original Message -----
From: James, Clive R
To: jabiruengine-list@matronics.com
Sent: Wednesday, October 13, 2010 10:10 PM
Subject: RE: JabiruEngine-List: Re: Adjusting screw torque
So from the manual below, if you can see the 'zapgrab' picture
generally it's 20-22ft lbs
This is from section 7. This is manual has been updated from the one I
got with my engine, I only have that on paper and I recall that being 18
ft lbs, the front cover of this manual I just downloaded from the Jab
Aus site says it's applicable to all 2200a engines. The 'soft headed'
ones all surely bend at 22 lbs...
What vintage is your engine? And the heads?
Regards, Clive
-----Original Message-----
From: James, Clive R
Sent: 13 October 2010 21:00
To: 'jabiruengine-list@matronics.com'
Subject: RE: JabiruEngine-List: Re: Adjusting screw torque
Section 5.3 'Initial after 25 hours checks'
in all the manuals I have here.
I recall lately there is two torques, one for building the engine and
one for checking afterwards.
The setting in 5.3 is the one to check for.
What is your serial number of the engine and what engine? 2200/3300?
Regards, Clive
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