That's the track day gone, then

Phoned up to pick up the 75 on Friday, only to find out that the blowing front exhaust was a cracked manifold. Argh!

My mechanic was getting his welding genuis to have a look in the afternoon, in the hope he could stitch it back together.

I have a feeling that was the last local track day of the year, too.

Bugger!

Reply to
SteveH
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That manifold is cast iron and not the good welding kind.

I suspect your mechanic is an "Alfa-specialist"... more even so because a used exhaust manifold for the 75 will set you back the enormous price of about 30 UKP...

Installation time? About 1 hour with thea/coffee-breaks every 15 minutes.

Tom - ex-owner of 2 AR75's TS- De Moor

Reply to
Tom De Moor

If it is cast, he might be able to stick weld it. Propably safer heat wise than mig/tig welding it.

If he can't and can't find a good replacement, see if this

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works. Most POR 15 stuff is excellent, but not cheap.

Reply to
NeedforSwede2

Much better to gas weld it, heat the entire unit up till it glows (like brazing) to remove the localised heat stresses.

Reply to
Depresion

Ah right. I thought it was stick arc for cast iron.

Reply to
NeedforSwede2

It depends on how good the cast is, an old manifold will have quite a lot of imperfections.

Reply to
Depresion

Just collected it. 6 hours too late :-(

He's welded the manifold, don't know how, but he has, and it's running like a dream

Now all I need to do is wash and polish it as it's been sat outside for

6 weeks under a tree. Argh!
Reply to
SteveH

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