Crankshaft Identification

[iloveredmeat]

Hi. Can anyone identify this crankshaft?

Part number 2–2 25540



Thanks for your help.
Peter

[Curtis]

Looks suspiciously like a 1500 crank. I just dropped mine off at the machine shop so can't look now. I'm building a 1.8l.

And if it is do you want to sell it?

[iloveredmeat]

Looks suspiciously like a 1500 crank. I just dropped mine off at the machine shop so can't look now. I'm building a 1.8l.

And if it is do you want to sell it?

Hi Curtis,

I don't know anything about 1500's frankly.

Here is another photo, and if I've learned anything, this is a 5-main, correct?



I was told that this came out of a "Datsun Roadster 2000", and I'm hoping for confirmation. The only thing is the part number is a digit off of what I see here:

http://www.carpartsmanual.com/datsun/sp ... nkshaft/26

Any and all input is appreciated!

Thanks,
Peter

[Curtis]

Yes. 5 main. If it is an inch longer than a 1600 and heavier it's probably a 2000. 2000 will have two key way slots on it.

[david premo]

Looks a lot like a U20 crank.

[iloveredmeat]

I was just told again that it came from a 1969 Datsun Roadster 2000. I've asked for any history if possible.

I'm just really surprised that the part number doesn't give a simple, clear, and definitive answer.

Yes. 5 main. If it is an inch longer than a 1600 and heavier it's probably a 2000. 2000 will have two key way slots on it.

Thanks Curtis, it is exactly one inch longer than my 1600 crank, and weighs 47 lbs... but I don't know what my 1600 crank weighs, and I'm 531 miles away from both... so don't know if that's heavy or not... I'm relying on friends and pics

I'll have my brother check for the key slots, and to send more detailed photos.

Looks a lot like a U20 crank.

Thanks Dave. Your opinion is as strong as it gets, so I'm very hopeful.

Are there any photos I can post that would confirm without question?

I'm looking to trade or sell this, so I want and need to represent as accurately, fairly, and honestly as I possibly can.

Thanks everyone, I really do appreciate it.
Peter

[Curtis]

If there's one thing that seems to hard to figure it's crank part numbers. Trying to look them up and all different and superseded numbers.

[Mike Unger]

It's a U-20 crank. You can easily tell by the 12 bolt holes in the flywheel flange.

[iloveredmeat]

If there's one thing that seems to hard to figure it's crank part numbers. Trying to look them up and all different and superseded numbers.

I did some medium-strength Googling, and didn't find anything definitive, only possible discrepancies... and a 2011 post here on 311s asking the same question.

It's a U-20 crank. You can easily tell by the 12 bolt holes in the flywheel flange.

Now that's what I'm talking about! Some positive identification clue.
Thank you Mike!

I also heard from my friend just this morning that it was positively taken out of her husband's old Roadster 2000, by him personally.

So, now... what to do with it?

Thanks again everyone.

[theunz]

Option 1 sell it
Option 2 keep it for a spare
Option 3 send it to me and I’ll keep it for a spare

If you are going to sell it you should have it checked and measured by a machine shop first.

[iloveredmeat]

Option 1 sell it
Option 2 keep it for a spare
Option 3 send it to me and I’ll keep it for a spare

If you are going to sell it you should have it checked and measured by a machine shop first.

Gosh, if only I knew your address, the crank would already be on it's way!

Actually, since project funds are extremely low, I think I'll look to trade or sell.

As I understand it, it's never been turned, but I will confirm that with some measurements. Good idea, thanks a lot,
Peter

[Curtis]

I forgot about the 12 bolts.

[spl310]

Pat Horne on Facebook was looking for a U20 crank because his got lost by the machine shop. He is on here as well as Habitat.Pat - search him and hit him up!

[iloveredmeat]

Thank you Sid.

I actually got this for a friend to build a stroker. He now has a line on a U20 but still needs that deal to get over the finish line, so I'll wait until he gets that just to be sure he won't need this.

Assuming it all goes well, after that I will reach out to Pat.

Thanks again.
pm

[GeoffM]

Peter,
In my experience, casting numbers don’t always correlate to catalog part numbers.