FUEL MOTO headpipe

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Dec 26, 2014 | 09:42 PM

wrenchguy24

Thread Starter

Road Master

Joined: Jun 2007

Posts: 982

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From: Cedar Rapids, Ia

FUEL MOTO headpipe

Has anyone reoved a PRE 2014 Headpipe and installed it on there
Rushmore bike!!!
The FM website says it the same pipe but I cannot get it to keep from leaking
mainly from front cylinder!!

Now I am a FORD certified master tech so wrenching is easy for me!!

So I got new gaskets from FM front cylinder leaks
removed and installed pipe several times and reinstalled PER FM INSTRUCTIONS
Now the Website says this pipe can be use with STOCK gaskets !! NO way pipe will not even go in the gasket!!
Got another set of gaskets from J&P cycles today hoping they were a little thicker !! No looks the same
reinstalled still leaks !!!
Still leaks GRRRRRRRR
I dont get it looks like it sitting in the head perfect
Its not like this is the first I have put this style pipe on I have had it on 2
different bikes!!!
With no problem
PIpe does not have any cracks secondary bungs are NOT leaking!!

I dont get it!!! So has any body installed a pipe from a 2013 and earlier
bike on ther RUSHMORE

Dec 26, 2014 | 11:15 PM

sixguns

Grand HDF Member

Joined: Nov 2013

Posts: 3,807

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From: SW Washington State

Quote:

Originally Posted by wrenchguy24

The stock gaskets do work and seal tight, the pipe will not fit in the gasket like the OEM taper will. With the close fit of the FM pipe inside the port, it seals up against the leading edge of the gasket. I would give the stock gaskets a try.

Dec 26, 2014 | 11:57 PM

472viper

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Joined: Nov 2013

Posts: 1,814

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From: USA

Wrenchguy I replied to the PM I got from you. I used the oem stock taper gaskets. FM says torque to 99 inch lbs. They don't mention anything about torque sequence but my service manual does. It's something like 12inch lbs on the rear lower stud then 12 inchlbs on the top forward stud then final torque (99inch lbs for the FM pipe, more for the HD pipe) on the rear top stud and final torque on the forward bottom stud and then final torque on the rear lower stud and then the forward upper stud.....or something like that. I think the sequence and final torque value may be critical. If you over torque the billet collar on the FM pipe may deform the gasket enough to make it leak. And getting to the lower stud on the forward pipe is a real treat.

Dec 27, 2014 | 08:11 AM

wrenchguy24

Thread Starter

Road Master

Joined: Jun 2007

Posts: 982

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From: Cedar Rapids, Ia

Ok I am going to try a set of NEW stock gaskets
When FM did my 107 on last bike I cant remember if they used the
stock gaskets or there flat gaskets.
3 years after they did my 107 I purchased the LEVEL B heads from them
and I put them on with the FLAT gasket from FM
pipe never leaked at all

So ill try it again!!
This rushmore motor should be the same !!!! GRRRRRR

Dec 27, 2014 | 08:20 AM

GPHDXLC

Grand HDF Member

Joined: Jun 2007

Posts: 4,599

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From: Lansing mi

I feel for you Brother. I've never had much luck with the flat type, so now I always use the stock ones. Good luck.

Dec 27, 2014 | 08:31 AM

Tn.Heritage

Grand HDF Member

Joined: Nov 2004

Posts: 3,917

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From:

If you use the thin gaskets I double stack them and no problems but have used stock with great success.

Dec 27, 2014 | 09:34 AM

Maddman

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Joined: Oct 2014

Posts: 89

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From: Florida

I had the same issue with my V&H PDs and after trying 2 sets of the flat gaskets I went with the stock ones and no leaks, even took it to dealership to verify that it wasn't leaking to be sure, I was as pissed as you seem taking them off and on 3 times, I guessing that the flat edge of header must crush the tapered gasket just right