crank not centered in front seal.

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Oct 8, 2009 | 03:46 PM

#16

ynevada

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Quote:

Originally Posted by Krewat

I was going to ramble on about a marine reverse-rotation block, but I think the difference in the centerlines is the pistons get reversed so the thrust side is on the other side.

This is WEIRD.

the engine came out of a running truck. as far as i know, all the parts came off MY engine.
i agree, very strange.

Quote:

Originally Posted by Argess

Seems to look like the cover as the measurements look good. Could the seal ID be too big? I guess not as you can get the gap to dissapear, just not with the holes lined up.

Can we see some pics?

possibly. i'll have to remember to bring my cam to work. might be hard to see the difference. i'll see if i can figure something out.
2 different seals/covers, same problem. it just about has to be in the block/crank.

BUT, assuming im not going to see any long term affects, i'll just dremel the holes in the cover, and get everything centered up.

im waiting to get my "new" crank adapter off my other engine. hoping to have it buttoned up, and ready to toss in next weekend.

thanks for the ideas/suggestions/measurements so far guys.
so far, i havent talked to anyone thats ever even heard of such a thing...

Oct 19, 2009 | 01:51 PM

#17

ynevada

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ended up just drilling the cover holes 2 sizes over.
got it all together, no leaks. runs like a top.

Oct 19, 2009 | 02:01 PM

#18

krewat

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Joined: Jul 2002

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From: Long Island USA

Another one for the record books.

Nov 3, 2025 | 07:23 AM

#19

Paki-stallion91

1st Gear

Joined: Nov 2025

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Your not crazy!

Quote:

Originally Posted by ynevada;[url=tel:8010489

8010489[/url]]anyone ever experience that?

i had all the machine work done at a (supposedly)competent machine shop. they built the long block.

as i was putting the timing cover on, i noticed it was offset in the seal. when i slid the crank sleeve into place, it was only touching the seal on about 3/4 of it.

i then loosened the cover bolts, and pushed it over as far as it would go. i could just get the seal to TOUCH at that point. i would NOT trust it to seal.

i called the shop, and asked if there was any way the crank got slightly offset ground, and was told no, it wasnt possible. there was NO way that could have happened.

they offered to give me another cover(different casting number) so i bought yet another seal, and tried it. NO change.

i thought maybe the snout of the cank was bent, so i turned it 180* and tried again, NO change.

i do have a solution. i'll use a dremel, and oblong the mount holes, so i can adjust it over until its centered, but...thats bull**** having to do that.

anyone ever heard of such a thing? or can explain what/why it happened?

Hey! I’m having same kind of issue with my crankshaft and oil seal not centering. I found the original timing cover with crankshaft sitting the way… mine is sitting low, leaving a gap on the top of crankshaft with new timing cover and seal. As soon I find out what is going on exactly. I’ll let you know what I find. Appreciate your time