Topica Loopframe_Guzzi Archive


Subject: exhaust probs

Author: Martin Cooke

Date: Jul 26, 2002, 2:43 AM

Post ID: 1710673913


to whoever wrote this (i've lost track):

"cookie I always thought exhaust if it pops letting off the throttle and
intake air leak if it popped getting on the throtle? B."

an air leak at the exhaust manifold will pop on the over run. an air leak on
the intake will just make it run weak in my experience.

now if anyone knows how to stop an eldo getting a loose joint at the
head/downpipe i'd like to know. got a friends bike doing this all the time.
NOT the nut coming loose (it's the locknut type), it just eats the gasket
after a few miles, air gets in, backfires like crazy. i put new gaskets in &
it's fine for a while, then same thing.

it started happening when new mufflers were fitted with rear balance pipe
removed. i think it may be to do with the pipes moving & flattening off the
gaskets. however the exhaust assy doesn't appear to be moving any more than
stock.

i must have put 6 sets of ex gaskets in that bike & i'm getting fed up now.

cookie


----- Original Message -----
From: "E. C. Bud Durdle" <bu-@olympus.net>
To: <Loopfram-@topica.com>
Sent: Friday, July 26, 2002 1:46 AM
Subject: Re: Digest for Loopfram-@topica.com, issue 861


On Wednesday 24 July 2002 10:16 pm, you wrote:
 I heard a little while ago that the popping could be from looseness at the
head/exhaust header joint, or somewhere close to that. Check to make sure
the exhaust is tight up there, and/or has no leaks.

 I am working on a 74 Eldo I just picked up with Amal Carbs. When I let
off the throttle and am gearing down
it pops through the mufflers. I have played with the air screws and it has
gotten better, but it is still
 there. I have checked the carb intake gaskets and they are fine. Someone
told me
this is a common problem with running amals on a Guzzi. Any ideas


 
Date: Wed, 24 Jul 2002 09:05:15 +0100
From: "Martin Cooke" <mjco-@nildram.co.uk>
Subject: Re: carb & air filter question


almost certainly an air leak as matt has said

cookie

cookie I always thought exhaust if it pops letting off the throttle and
intake air leak if it popped getting on the throtle? B.

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