Today's Message Index:
----------------------
1. 01:50 AM - Malpassi fuel pressure regulators (Gilles Thesee)
2. 05:28 AM - Re: Malpassi fuel pressure regulators (Archie)
3. 05:36 AM - Re: Malpassi fuel pressure regulators (Gilles Thesee)
4. 04:52 PM - Re: Malpassi fuel pressure regulators (Jan de Jong)
5. 07:30 PM - Re: Balancing Connecting Rods (Red Hamilton)
Message 1
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| Subject: | Malpassi fuel pressure regulators |
--> Engines-List message posted by: Gilles Thesee <Gilles.Thesee@ac-grenoble.fr>
Hi all,
I'm looking for information on Malpassi fuel pressure regulators, as
used on the Rotax 914 engine.
I understand these regulators are fitted on many race cars. The
particular model on the Rotax is for turbo engines, and has dual outlets.
Any information, drawings, specs, appreciatied.
Thanks in advance,
Regards,
Gilles Thesee
Grenoble, France
http://contrails.free.fr
Message 2
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| Subject: | Re: Malpassi fuel pressure regulators |
--> Engines-List message posted by: "Archie" <archie97@earthlink.net>
Although I have no info on these, if you are simply seeking a four port,
there are many manufacturers of them.
Hilborn,
Professional products,
Kinsler, etc, etc.
> --> Engines-List message posted by: Gilles Thesee
> <Gilles.Thesee@ac-grenoble.fr>
>
> Hi all,
>
> I'm looking for information on Malpassi fuel pressure regulators, as
> used on the Rotax 914 engine.
> I understand these regulators are fitted on many race cars. The
> particular model on the Rotax is for turbo engines, and has dual outlets.
> Any information, drawings, specs, appreciatied.
>
> Thanks in advance,
>
> Regards,
> Gilles Thesee
> Grenoble, France
> http://contrails.free.fr
>
>
>
Message 3
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| Subject: | Re: Malpassi fuel pressure regulators |
--> Engines-List message posted by: Gilles Thesee <Gilles.Thesee@ac-grenoble.fr>
Archie a crit :
>--> Engines-List message posted by: "Archie" <archie97@earthlink.net>
>
>Although I have no info on these, if you are simply seeking a four port,
>there are many manufacturers of them.
>Hilborn,
>Professional products,
>Kinsler, etc, etc.
>
>
>
Archie,
Thank you for responding.
I'm not seeking for a regulator, as it performs flawlessly on my engine.
I was looking for further info on this specific model, to answer some
fellow homebuilders' questions. It appears on numerous fuel system
catalogs, but I was unable to find the manufacturer's wherabouts.
Regards,
Gilles Thesee
Grenoble, France
http://contrails.free.fr
Message 4
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| Subject: | Re: Malpassi fuel pressure regulators |
--> Engines-List message posted by: Jan de Jong <jan.de.jong@xs4all.nl>
Hello Gilles,
I found:
http://www.officinamalpassi.it/
There are 8 models for carburetor / turbo.
Unfortunately no specifications: "*Descrizione tecnica:* Non disponibile".
Regards,
Jan de Jong
Gilles Thesee wrote:
>--> Engines-List message posted by: Gilles Thesee <Gilles.Thesee@ac-grenoble.fr>
>
>Hi all,
>
>I'm looking for information on Malpassi fuel pressure regulators, as
>used on the Rotax 914 engine.
>I understand these regulators are fitted on many race cars. The
>particular model on the Rotax is for turbo engines, and has dual outlets.
>Any information, drawings, specs, appreciatied.
>
>Thanks in advance,
>
>Regards,
>Gilles Thesee
>Grenoble, France
>http://contrails.free.fr
>
>
>
>
>
>
>
>
>
Message 5
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| Subject: | Re: Balancing Connecting Rods |
--> Engines-List message posted by: "Red Hamilton" <redswing@mcn.org>
----- Original Message -----
From: Archie
To: engines-list@matronics.com
Sent: Saturday, March 04, 2006 5:34 AM
Subject: Re: Engines-List: Balancing Connecting Rods
--> Engines-List message posted by: "Archie" <archie97@earthlink.net>
If you attend Oshkosh, I conduct seminars on engine balancing.
Briefly, Aircraft manufacturers balance rods in total weight.
While this is satisfactory, for horizontally opposed engines,
an improvement is to separate Reciprocating from Rotating weights.
9 Grams is doable with care and stress knowledge.
On Lyc rods, there is an area by the rod bolt that is unfinished.
This area can be taken down and polished.
Do not use a grinding wheel. Metal must be removed with a high speed
belt sander so as not to allow the rod to overheat. If this happens, the
bore will distort.
Prior to starting, you may want to check the bore accuracy.
This is a great suggestion. Aircraft rods are sometimes returned to service in
unserviceable condition because many of the shops do not edven check the big
end bores. If your heavy rod(s) also need to have the big end bore resized, that
could fix both problems at the same time.
Red Hamilton
Most aircraft
shops merely
replace the pin bushings and rod bolts. I have found that most rod bores
are "not on the money", but people use them as is anyhow. (no comment on
that)
Same with crank balancing. For the most part, they are not usually too bad.
Grinding and polishing is my preference. The factory balancing is with a
fairly
coarse finish.
Also, do not forget the starter gear. It becomes part of the crank
rotational force
when attached. (as do the bolts).
Archie
> --> Engines-List message posted by: Hopperdhh@aol.com
>
> I made a search in the archives and couldn't find anything on this
> subject.
>
> Is is safe to remove metal from a Lycoming rod to match up a set of 4?
> The
> worst one is 9 grams heavier on the big end. That is quite a volume of
> metal, and the rods don't look like they have that much to spare. One
> option is
> to do it on the crank. Is it safe to remove metal from the crank.
>
> I'm concerned about the nitride coating layer, mostly. Is there any
> advice
> that anyone can give me about what to do or not do.
>
> The engine is an IO-360-A1A. The rods are LW10646.
>
> Thanks, Dan Hopper RV-7A Flying 144 hours
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