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On all smallblocks they make 1 bearing or wear shim (that's all you get) crank sits in block halves. Once worn out of new limits it's toast. Same with end play once past limit of new shim (crank worn) weld it up & turn it to new spec. If block is worn it's toast.It is not like a big block with different size mains.
Vagrant, could you elaborate? Do you mean from a logistic / technical angle, or just cost / worth the time?Watching the 750 Nevada tech videos posted on Greg’s site, I’m not seeing anything that stands out to my admittedly less-than-experienced eyes as not doable at home. Certainly, I’ll have to make sure that I take some careful measurements, but that’s not unlike other engine rebuilds.
But I assume if the crank and block are good, he can replace the bearings and check clearances yes?He MIGHT be confusing the V7II with the V7III, the crankshaft and bearings are notably absent from the V7III parts book suggesting they are not available.
Yes, but is the rod stamped steel also like the new 85 v7?
The thrust washers in the pics are from a motor that died. If you look close you can see how badly worn out the ONE washer is. The other washer is the mangled bit of metal just to the right of the worn one. Oddly enough, the mangled one was much thicker than the worn out one that was still in position.Clickey on the picey. Tom
I guess that if his old ones looked anything like the pics, no need to measure the old ones.
I looked at the parts books one more time, and noticed that they changed the crankshaft partway through the V7 III. The V7 III Special shows 2 different assemblies—the former, similar to my year, has parts that can be purchased individually:
That's the pressed crank to which I was referring.I also wonder if the old style crank REALLY was used on an Hemi heads or if the literature just lagged behind actual changes.
Nah. Different part numbers.I didn’t mean to suggest they were the same, but simply that they were available individually, similar to previous models. Here are the V7 II crankshaft parts for reference:
A lot of other makes have used pressed together cranks. Currently, Harley as an example, which are serviceble. Why isn't the pressed MG crank able to be taken apart, damaged parts replaced and pressed back together? It was and is standard practice with two stroke engines.kk
The inside of the block "looked" OK. The outside not so good. The case at the rear main and the cam plug were being eaten away at.Tom
Con rods appear to be replaceable:V7 III:I was planning to measure both mine and those from the donor engine, hoping at least two if not all still measure within spec
this photo seems weird to my eyes, Is that two con rods or one singe "v" shaped con rod ?I don't like the fact that there are no conn rod bearings listed, however as these are non split rods, a new set can easily be produced at your local machine shop.. so no worries....
Like my V11 at the moment.20% different compression port to starboard.