Today's Message Index:
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1. 09:22 AM - 912ULS loud squeak on shutdown (lucien)
2. 10:52 AM - 447 spark plugs (william sullivan)
3. 11:32 AM - Re: 447 spark plugs (LarryMcFarland)
4. 11:37 AM - Re: 447 spark plugs (william sullivan)
5. 02:10 PM - Re: 912 UL Compression Test (Goodone)
6. 05:05 PM - Re: Re: 447 spark plugs (LarryMcFarland)
7. 07:26 PM - Re: 447 spark plugs (Roger Lee)
Message 1
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| Subject: | 912ULS loud squeak on shutdown |
HI all,
Always wondered about this - on shutdown, the 912ULS gives a loud squeak as it
comes to rest in the last few revolutions. Seems like all of them do that including
mine.
Just out of curiosity, what is that? Is it the overload clutch or dogs or ?
Thanks,
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=238331#238331
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- Does anyone put anything on the spark plug threads before installing?
- I can't find anything in the manual, nor in Lockwood's book.- Also, t
orque is given at 240 in./lbs., but where it mentions the cylinder head tem
p sender it says 195 in./lbs. Do you use a heat sink compound?- This is o
n a 447.
-
-------------------------
------ Bill Sullivan
-------------------------
------ Windsor Locks, Ct.
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| Subject: | Re: 447 spark plugs |
Bill,
It's useful to put a small amount of anti-seize compound on the threads
and I only go 10 ft lbs on the plugs.
This will keep them from corroding in place, galling the aluminum and
damaging the threads on plug removal.
Larry McFarland 601HDS at www.macsmachine.com
william sullivan wrote:
> Does anyone put anything on the spark plug threads before
> installing? I can't find anything in the manual, nor in Lockwood's
> book. Also, torque is given at 240 in./lbs., but where it mentions
> the cylinder head temp sender it says 195 in./lbs. Do you use a heat
> sink compound? This is on a 447.
>
> Bill Sullivan
> Windsor Locks, Ct.
>
> *
>
> *
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| Subject: | re: 447 spark plugs |
- Thanks, Larry.- You don't have any trouble with the plug loosening at
1/2 torque?
-
-------------------------
---------------------- Bill Sul
livan
-------------------------
---------------------- Windsor
Locks, Ct.
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| Subject: | Re: 912 UL Compression Test |
I have had wonderful results with Marvel Mystery Oil in my cars over the years
when placed as directed in either my car's oil or gas. The most dramatic success
in recent years was putting it in the engine oil to successfully remove a truly
bad, bad knock in the engine of my 97 Olds Bravada. However, I have not
added it to the oil in my 912 because of fear it might cause foaming in the gear
reduction unit of the engine and result in damage. If folks have used it in
the oil of the 912's with good results I would like to hear about it.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=238373#238373
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| Subject: | Re: re: 447 spark plugs |
Never ever had a plug come loose. Something else would be in play if
that happened.
Larry McFarland
william sullivan wrote:
> Thanks, Larry. You don't have any trouble with the plug loosening
> at 1/2 torque?
>
> Bill Sullivan
> Windsor Locks, Ct.
>
> *
> *
Message 7
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| Subject: | Re: 447 spark plugs |
If you follow Rotax school teachings 2 stroke plugs are to be installed dry. Nothing
is to applied to the threads especially anti seize. If you screw them in
by hand you will never mess up the threads. Just don't try and drive them in
with a wrench until they are seated. The plugs are to be torqued to 238 in/lbs
and only torque them on a cold engine. Even on the Rotax 912's anti seize on
the threads is a no no. You are supposed to use heat conducting paste on 912 plug
threads. The paste can be obtained from several sources. One of them is Lockwood
Aviation and it's dirt cheap.
I highly recommend that everyone one that has a Rotax engine attend a Rotax school
whether you own a 2 stroke or 912. The school for the 2 stroke is only 2 days
and is offered around the US. It will be well worth your time and the cost
of the class and should keep you from causing more damage to your pocketbook
than the class cost. Plus these classes will keep you in the air and keep your
engine running to TBO and beyond. As of 2001 Rotax had built over 5 million
engines. I think it is time for all of us to admit they really know what they
are doing and the reasons why they may be different than your other engines you
may own.
I'm not trying to jab anyone, but trying to save some headaches and money. I have
spent my time in classes with these guys for years and have seen the light
and the damage from others.
Just trying to help.....
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
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