Bandit or market value?

Yesterday I stopped to look at a disassembled engine that was for sale. I figured you can never have enough extras as long as the asking price was good. So. I picked up what turned out to be a complete except cam and rods 18V5842-L17239 engine. The crank has been machined, brand new +20 pistons with new rings, brand new valves, brand new bearings, flywheel that looks next to new and the block appears to have been honed as well. On the cylinders I am getting a measurement of 3.16 inches or 8.5 cm and there is no sign of wear or ridge at the top at all. The grab also included some gaskets. The guy I bought it from told me the head was crack free and with the naked eye I didn't see any issues but who knows.



Was the $150 I paid for this a bargoon or did he see me coming? :)

Oh and. What do the measurements I got on the cylinders mean.. is it honed to +20 or is it still stock?

Paul

You've got your money covered with the head alone (assuming that it's not cracked ) . You're probably OK.

If it's +20, it's been bored .020 over to correct cylinder imperfections. How much over was the crank machined?

If nothing else, you have a new coffee table half the size of the Barnes'.

Your kidding right? You stole it! Getting a crank done is a hundred bucks itself here. 3.16 would be stock bore. Are these deal only in Canadia????

Don't even tell me the bearings are Vandervells.:moody:

Paul,

Nominal stock bore is 3.16. I am not sure how you measured the bore but if you did not use a bore gauge, I would highly suggest measuring with one prior to trying any ring and or piston fit. I have a bore gauge and would be happy to loan it out, but not sure how that would work with me living in the Chicago area of the USA.

If I had run into that deal, I probably would have bought it too even though I am not sure where I would put it. haha. I have a slightly large 2 car garage with 4 MGBs, my motorcycle, 2 lawn mowers and a snow blower in there now, not to mention some spare MG parts like a OD in waiting. Heck the new pistons are worth the money by themselves.

Cheers,

Rob

Paul,

Check the crank journals to make sure the radius on each end is still there.

How come I never find deals like this?

Paul for that price show us the rest of the car!!! I cant wait to see her

I checked the Crank before I left home. It is stencled, HO20 and RO20 whatever that means.
And I am not sure what this means, "Check the crank journals to make sure the radius on each end is still there." either. Paul :(

Major score!

So, what does the RO20 and HO20 that is on the side of it mean? Anything?

From Hap's website : "One item often overlooked is the filet radius, this where the crank journal meets the counter weight, there should be a generous radius here to insure you do not experience crankshaft failure which normally can wipe the entire engine out." http://www.acmespeedshop.com/pricing.html

What you don't want is a sharp 90 degree angle from the journal to the weight. Crank grinders often grind away at the journal, leaving this 90 degree angle instead of a gradual curve.

As for the markings-- my best guess, and only a guess is the main and rod journals are ground 20 under.

Edit to add-- are the rod/main bearings marked with a 20? or .020? or something like that? That would tell me the crank is 20/20

I think paul is the Bandit in this deal..

I'm sorry to say, you were ripped off big time.

Being that kind of guy, I'll help you out and buy the junk from you. Hell, I'll even pay the shipping. :D

Good job Paul. Take it to Trevor and have him check out the block, crank, etc. If all is good it sounds like you may have found a new engine for your GT.