[Roadsters] Exhaust problems - the cutting - X

[Gary and Cindy Ault]

Nathaniel,

The factory part is flattened where it passes through the cross-member.  I'm 
with Phill, if the exhaust is properly aligned and supported, and if the 
engine and motor mounts are in good shape, the exhaust will not interfere 
with the frame.

When I first put a header on my car, the headpipe did not line up properly. 
Heating and bending a bit helped, but a flex coupling at the header-headpipe 
junction will mask a lot of minor ills.

Gary
----- Original Message ----- 
From: "Phill Brook" <fairlady at bigpond.com>
To: "Nathaniel Leeds" <nmleeds at mindspring.com>
Cc: <datsun-roadsters at autox.team.net>
Sent: Tuesday, November 25, 2008 7:25 PM
Subject: Re: [Roadsters] Exhaust problems - the cutting - X


> Nathaniel,
> A well made and properly mounted exhaust should rarely bang against  the 
> chassis.
> As well as exhaust mounts, you probably also need to change the  engine 
> and gearbox mounts so there is less movement to start with.  Have they 
> ever been changed on your car or are they still the 40 year  old 
> originals?
>
> A short stainless steel flexi section should also be fitted at the  end of 
> the extractors to isolate most of the remaining drivetrain  movement from 
> the main exhaust pipe. You can also slightly flatten  (or oval) the 
> section of exhaust pipe that passes through the chassis  for extra 
> clearance.
>
> Hope that helps.
>
> Phill B
>
>
> On 26/11/2008, at 12:09 PM, Nathaniel Leeds wrote:
>
>>  the leak was where the
>> exhaust pipe passed through he X support in the frame. Apparently  the 
>> pipe
>> bangs against that x, and cuts itself; replacing the pipe will set  me up 
>> for
>> the same problem in two months.
>>
>> Before I go and replace that section of pipe and wait for it to  leak 
>> again
>> in 2 months, I though I'd ask if anyone else has had this problem,  and 
>> found
>> a solution?
>>
>> Nathaniel Leeds
>> '69 2000
>> (a.k.a. wheezy)
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