exhaust manifold removal

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shaun pond
Posts: 11
Joined: 21 Dec 2008, 20:25

Re: exhaust manifold removal

Unread post by shaun pond »

My 1.3 Rallye Coupe had the same deceleration backfire, dating back to the time that I bought it four years ago. When I first got the car, I looked everywhere for holes and leaks without success, and so -- like Tim -- had resolved to view it as a feature instead of a defect.

Just recently, when fiddling with my alternator conversion, I discovered the source of the problem. On mine, the backfire turned out to be from the carb/carb adapter/intake manifold mating surfaces. I'd always been taught to assemble those components dry -- without gasket sealant -- but I apparently can't get them leakproof that way.

A very thin skim of Hylomar, though, stopped both the leak and the backfire.

I now have to make the "pop pop pop" noises by myself when letting off of the accelerator.

Regards
Shaun Pond
1967 Fulvia Coupe Rallye 1.3
bmarler
Posts: 110
Joined: 22 Dec 2008, 17:33

Re: exhaust manifold removal

Unread post by bmarler »

thanks shaun,
i'm looking at the intake side as well. really i should start there as its easier to reach! i also recently discovered the carb support is missing. i guess i'll fabricate something for that while i'm at it, and check the adapters for cracks.
i aspire to be another fulvia owner that has to make his own pop-pop-pop noises.
brian
'67 fulvia sport, '61 appia vignale
Sam Danenberger IV
Posts: 8
Joined: 09 Jan 2009, 22:06

Re: exhaust manifold removal

Unread post by Sam Danenberger IV »

Shaun-
No pops on mine(currrently) but.............
Thanks for sharing the tip!
Car looks great on Fulvia Fancam.
What kind of tires are you running on the steel wheels?

SDDIV
shaun pond
Posts: 11
Joined: 21 Dec 2008, 20:25

Re: exhaust manifold removal

Unread post by shaun pond »

Sam Danenberger IV Wrote:
-------------------------------------------------------
> Shaun-
> No pops on mine(currrently) but.............
> Thanks for sharing the tip!
> Car looks great on Fulvia Fancam.
> What kind of tires are you running on the steel
> wheels?
>
> SDDIV

Hi Sam,

I'm running Vredesteins 165-14s, the closest I could find to the original size. Have had them on the car since last August -- approximately 6k miles -- and like them. They appear to be wearing well, aren't too noisy, and grip well in the dry (haven't had a chance for spirited driving in the wet). The only negative I can think of is that they are a little sensitive to the rain grooves we have in some of the concrete freeways out here.

I'm coming up on the 50,000 miles of ownership milestone and am planning on putting up an album on fulvia cam recapping how much fun I've had with the car, not just on old car events but as a daily driver.

The Fulvia is a great car for both purposes. This week I put over 800 miles (1287km) on two business day trips to the California Central Valley, and, except for suffering a bit from the heat -- 107 degrees F (41 degrees C) in the Valley yesterday -- had no problems.

I did have the usual "what is it?" questions at gas stops (old BMW? Alfa? Corvair?).

Is this your bianco coupe that you refer to in your message? Start a fresh thread and tell us how that's coming along.

Regards -- Shaun Pond
Shaun Pond
1967 Fulvia Coupe Rallye 1.3
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