292 Y Block Rear Main Retainer

[chapingo17]

I had my engine rebuilt & my rear main retainer has always leaked, but I just notice the rear main retainer is not flush on the bottom of the engine were head bolts of the rear main are tighten up an touch the oil pan. Not sure why the mechanic that rebuilt engine did that or retainer was already like that. Does any one have any suggestions? 

[lalessi1]

This is a guess as to why... If the engine was ever aligned bored, the crank bearing caps could have been machined on the block mating surface to make the resulting crank bore smaller  than original so that it could have been restored to original spec? Maybe silicone sealer would fill that gap?

[hiball3985]

I'm not sure I understand the problem. Are you saying the seal retainer is sitting higher then the surface of the block? If thats the problem this can happen if lock washers were used on the main bearing cap bolts. All main bearing caps use lock washers EXCEPT the rear one..

[chapingo17]

Actually, the retainer is recessed not flush with block.

[hiball3985]

Actually, the retainer is recessed not flush with block.

Not on any Y block that I have seen. Do you have a picture of yours?

[chapingo17]

Your picture is the way is suppose to be, mine is recess in the block not flush. I have no pictures. If need to I'll take some.

[hiball3985]

Your picture is the way is suppose to be, mine is recess in the block not flush. I have no pictures. If need to I'll take some.

I was just curious as to how low?

[chapingo17]

Not sure I will check and let you know.

[KULTULZ]

Read this TECH ARTICLE and see if it helps -

https://www.eatonbalancing.com/2009/06/28/warped-rear-seal-retainer-on-a-y/

[chapingo17]

Thank you I will check it out see if its warped. I know Ebay was selling a new upgraded retainer.

[KULTULZ]

Also, look over this - https://www.eatonbalancing.com/2008/09/10/neoprene-rear-seal-installation-for-the-y-and-others/

It pretty well lays it all out.

[chapingo17]

Would anyone happen to know where I can get a new rear main retainer? In the past Ebay would sell them, but now I'm not sure where to get them. I will look into removing the old one and replace it. Also, would any one know the dimensions of the rear main retainer? Mainly how tall to have an idea on what I have.

[hiball3985]

I just checked with a dial caliper and got 2.665"
Has casting # ECG 6335 A

[chapingo17]

Thank you. Would that be for a 292 Y block right?

[hiball3985]

Thank you. Would that be for a 292 Y block right?

Yes, sorry for the late reply I left town right after posting.