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Plastic/chemical metal
johnH20 - 25/3/10 at 08:22 PM

I need to build up a small area of the inside of my ali inlet manifold ( approx 1 sq cm by 2 mm deep ) to achieve best flow.
What is the best material to use bearing in mind max temp ( 80 deg C ? ) and more importantly thermal cycling? The area is up steam of the injectors so fuel resistance is not a major issue.
Obviously I don't want the material to detach and fall into a cylinder. Advice please.


Paul TigerB6 - 25/3/10 at 08:25 PM

Do you know anyone with a TIG welder??


skinned knuckles - 25/3/10 at 08:30 PM

if you were nearer. i'd tig it for you. thats really the only sensible solution.


Paul TigerB6 - 25/3/10 at 08:36 PM

quote:
Originally posted by skinned knuckles
if you were nearer. i'd tig it for you. thats really the only sensible solution.


I'm near - you can do all my welding!!


BenB - 25/3/10 at 08:45 PM

Technoweld is sticky stuff, very much doubt it would come unstuck. Would need a big blowtorch or pre-heating in a domestic oven though first.


whitestu - 25/3/10 at 09:12 PM

I used some chemical metal to do this when I was mucking about with an inlet manifold. It wasn't on the car for long, bt showed no signs of coming off when I took the manifold off. Always worried me a bit though.

Stu


skinned knuckles - 25/3/10 at 09:24 PM

quote:
Originally posted by Paul TigerB6
quote:
Originally posted by skinned knuckles
if you were nearer. i'd tig it for you. thats really the only sensible solution.


I'm near - you can do all my welding!!


you know how to get hold of me now then don't you


mediabloke - 26/3/10 at 01:37 AM

I'm not sure now many compounds would be heat-resistant. Welding would be the safer option.

Different with temporary repairs to other systems, but I'd be like Whitestu - not sure I'd be confident having stuck something to the inside of the inlet. I'd be too busy listening for a bang... ;-)