Anonymous-0

Well-known Member
I just started tearing into my U302. Compression and leak
down tests confirmed I need rings, and probably the valves
worked on. I have a good machine shop lined up, and am
excited about the rebuild. This is my first engine tear down. As
you can see from the photo at some point someone replaced
the heads with yellow ones. I'm not sure how much work ws
done at that point. Already I know I need a new exhaust and
intake manifold, new upper and lower radiator hoses, gaskets,
rings, and possibly valves and pistons. I know some parts are
offered on this site, but not all parts are. I was hoping some of
you could suggest good part sources, and also ones to avoid.
As an example I have seen the intake and exhaust manifold
new on ebay at a cheaper price than anyplace else, but I'm not
sure about the quality. I don't mind spending money for quality,
but like everyone else I would like to save money where I can.
Thanks in advance for any replies.
a175101.jpg
 
Not sure why you need new manifolds they can be milled to flaten the sealing surface and the elbow is replaceable. If it is totally shot used ones are very plenty I have a bunch. If you need to turn the crank make sure you can get bearings first and let them turn to fit bearings not all sizes are easy to find. Mm parts . Com charlie biler or welters in missouri can get you most anything. Where are you located? Hope this helps
 
I'm in central Ohio. Manifold is shot, cracked, all the bolts are rusted into something that resembles bolts.
 
I haven't tried one of the manifolds you mentioned but I don't believe I would be afraid of trying one. I was planning on getting one off of there for my M5 one day.
 
I just wanted to add:

Wendell Everett on OH. 740-922-3335(I think) He is not there all the time, so keep trying.

I think I have used the aftermarket manifold like the one on ebay, It worked o.k. The intake was similar but not exactly like a U302 manifold.

The heads probably cracked and that is why you have replacements on there now.

Like the other guy said, you need to have the bearings on hand before the crank is ground. However, you need to measure (Mic) the crankshaft and have some idea of what you need to do to it-How much you need to cut- before you start looking for bearings.

Keep in mind, Rome wasn't built in a day and 40 yr. old tractor engines don't get fixed in a day either. It usually took me 2-3 months to find the parts and get everything fixed and back together. On the other hand, it should be good for the next 40 years when its done.
 

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