i took this to two professional weld shops. both have done work for me before and do great work. this manifold is leaking antifreeze out a bad spot in the casting. both shops are telling me that the way this is and as deep as it is, they don't think welding is a good idea. i am not a welder but i would think this would be an easy one. they said it needs to be ground out and that they will get it so hot building it back up they fear it will warp the intake. both places recommended to use a high temp devcon epoxy. i have used devcon on atv engines and is amazing stuff but thought welding would be best for this. what do you think? should i find a new weld shop?

 

Think about it. The coolant is on the INSIDE and that corrosion pitting is on the OUTSIDE. I suspect that they are worried that the porosity inside will be much worse than you can see. At best, you can cut out a chunk and patch it, but that's obviously a lot more work. FYI, there's someone selling several Jetfire intakes on ebay. It might be cheaper to just get one of those.

 

You can always try another shop, but since it cracked to begin with, probably know what they're talking about. Don't know about the epoxy either, as probably good amount of expansion/contraction taking place.

 

more bad news. i think i can see a crack on the inside. i will run my buddies video scope inside and have a better look. i can't find the jetfire intakes on eBay.

 

The seller has relisted them. Here's one, he has two listed currently.

http://cgi.ebay.com/ebaymotors/1962-...item1c244e2975

 

i talked to him the other day. he has a 3rd one he don't have listed coming.

 

One of the problems of heliarc welding aluminum is that it has to be very clean. Because cast aluminum is somewhat porus, in that fuel and oil actually work their way into the metal, it becomes difficult to weld things like oil pans or intake manifolds. Anytime you hit oil or fuel contamination when you are welding it causes holes or flashes in your weld. You can use the high frequency to clean the area as you weld but it still can be a problem. Dave E

 

i see you have a problem with your aluminum intake i know a guy who can fix this or anything aluminum 1000% and his work is reasonably priced if you would like to contact him his e mail address is ... adamtshaw@hotmail.com...hope this helps

MATT

 

i got a replacement intake now. my original one has a crack inside the water port and i think is into an intake runner.