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 Post subject: Heat riser repairs.
PostPosted: Mon Apr 05, 2021 3:25 am 
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1 BBL (New)

Joined: Wed Jan 06, 2021 12:37 am
Posts: 2
Car Model: 1962 Valiant R Series - Australian (1961 in USA.)
G'day guys.

I have "decent" heat riser components in an exhaust manifold I'm tidying up but......

The little bushes (sleeves) that keep it tight are stuffed/broken. Is it simply a case of trying to make some new little metal bushes that aren't too tight, but will limit rattle ?

Thanks,
Peter


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 Post subject: Re: Heat riser repairs.
PostPosted: Wed Apr 07, 2021 6:16 pm 
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Guru
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Joined: Sat Oct 12, 2002 11:22 am
Posts: 3696
Location: Sonoma, Calif.
Car Model: Many Darts and a Dacuda
The factory bushings are made out of high temp bronze material to keep them from seizing onto the heat raiser valve's steel shaft.
The outside diameter of the bushing is an interference fit to the manifold and the inside diameter is a "running" fit for the shaft.
It is common that the inside bushing hole will have to be reamed or drilled-out, after the bushings are pressed into the manifold.
DD


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 Post subject: Re: Heat riser repairs.
PostPosted: Thu Apr 08, 2021 5:15 am 
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1 BBL (New)

Joined: Wed Jan 06, 2021 12:37 am
Posts: 2
Car Model: 1962 Valiant R Series - Australian (1961 in USA.)
Doctor Dodge wrote:
The factory bushings are made out of high temp bronze material to keep them from seizing onto the heat raiser valve's steel shaft.
The outside diameter of the bushing is an interference fit to the manifold and the inside diameter is a "running" fit for the shaft.
It is common that the inside bushing hole will have to be reamed or drilled-out, after the bushings are pressed into the manifold.
DD


Mate, thanks very much for the reply. That's helpful info.

I actually can't access my old account, which is why it seems that's my first question on the group.

Peter


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 Post subject: Re: Heat riser repairs.
PostPosted: Thu Apr 08, 2021 6:12 am 
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Guru
User avatar

Joined: Sat Oct 12, 2002 11:22 am
Posts: 3696
Location: Sonoma, Calif.
Car Model: Many Darts and a Dacuda
No problem on the bushing question.
There are many suppliers that have bronze bushings so take some measurements and do some looking around for a supplier near you.

https://www.atlasbronze.com/1-4-ID-x-3- ... s/2108.htm

PM a moderator on this forum if you need help re-setting your password.

DD


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