Topica Loopframe_Guzzi Archive
 

Subject: RE: exhaust probs

Author: Charlie Mullendore

Date: Jul 26, 2002, 3:58 PM

Post ID: 1710678803

Oh No! Not this dreaded thread again! Please don't get started on a lengthy discussion of the expansion rates of different materials again. Don't think my poor brain can handle that. :-) Cheers,

Charlie

Zerhackermann <chopp-@hotmail.com> wrote:

 I only had to do it for the first 500 miles or so. Never need it after
that. So relax and climb down off that pulpit before I set fire to it.


-----Original Message-----
From: Jesse Open [mailto:Beaver-@comcast.net]
Sent: Friday, July 26, 2002 2:50 PM
To: Loopfram-@topica.com
Subject: RE: exhaust probs


It IS the choice of so many POs :-))
Of course if you use the RIGHT wrench you won't have to worry about
TAKING a "hook" wrench WITH YOU !!! Zerhackermann wrote:
 A hook wrench works just fine.


-----Original Message-----
From: Jesse Open [mailto:Beaver-@comcast.net]
Sent: Friday, July 26, 2002 1:49 PM
To: Loopfram-@topica.com
Subject: RE: exhaust probs


First GET RID OF THE LOCKNUT ! It only pulls the gland nut AWAY from
the gasket ring and DECREASES the pressure you are relying on to seal
the joint. They MAY work OK if you have little wear on the threads but

 you are far better off to PROPERLY tighten the gland nut WITHOUT the
lock ring. The original chrome plated brass gland nuts were very easy
on the aluminum threads and also had a higher coefficient of thermal
expansion which actually caused them to hold better when hot.
A properly tightened nut will hold until you WANT to take it apart.
Most of the problems come from people afraid to tighten them fully for

 fear of stripping the threads. A little high temp PERMATEX ANTI SIEZE
and a LOT of ttorque with the PROPER tool are required ! Pipe
wrenches , spanner wrenches ,hammer and punch , basin wrenches etc.
are NOT the proper tool. A castellated wrench that drive on the
TANGENT is the best way . The others tend to distort the tubular gland

 nut long before the proper torque is achieved. They may work now and
then but to be sure the good tool is a must.
If you don't have access to the right tool ,email me and you may
borrow mine. IT WILL WORK !! :-) Martin Cooke wrote:
 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.



1972 Eldo Cop
1974 Eldo 4LS Civvie
Looking for 1974 Ducati 750 Sport, 1984 Ducati 900 SS



1972 Eldo Cop
1974 Eldo 4LS Civvie
Looking for 1974 Ducati 750 Sport, 1984 Ducati 900 SS


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