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Discussion Starter · #1 ·
I had a brand new front cover,I was deburring it and drilled out the main oil passage to 1/2 inch. Well right before my eyes i saw the aluminum wave and the poof,out comes the drill bit. Turns out this cover didn't have quite as much meat it that area as others I have done this to before.

my question is can I get this whole welded up and redrill it and still be ok or did i just waste a lot of $$$. Did I say that I've done this to at least 5 other covers and never had this happen. :dunno: It's a clevite cover.
 

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Free Door Removal
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same thing happened to me, have somebody TIG it up with some extra meat, redrill, and smooth it out with cartridge rolls. No big deal.
:yup:

Joe
 

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Iheartporn
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Yikes!!! Sounds like a warning to stay clear of the Clevite cover!

Since my car got stolen/destroyed and my oil pump got seized and sheared, I've got to do another cover.

I'll have all the usual earlbrown mods and some I didn't print :) I think I've got a line on a good deal for a Silver Seal and an Elgin cover. Do you have any experience with those? I was going to do a comparison and see how they were as opposed to the GM cover I used to write my article.

Definatly sounds like I can cross the Clevite of the list of potentials!

Earl
 

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Discussion Starter · #4 ·
Yes,those are okay. i thought most of the covers where made by 1 or 2 different companies.
 

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I had a silver seal that I purchased off of an e- bay member. When I tried to enlarge the main oil passage I hit a pit in the casting that opened all the way to a bolt hole. Thankfully the guy made it good. The second cover was okay in that area but the main cavity was not drilled all the way thru. (#2 or 3 in your mods). I opened it up and used the cover. This guy may have been selling seconds and one purchased from a parts store may not have the same issues. His was a good deal but sometimes you get what you pay for.
 

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earl, you can scratch silver seal #6571 aswell. after wrecking my first cover trying for a 1/2" hole i settled for a 7/16" on my second. this left about 1/8" of cover the first one was cast slightly different then the second cover.

:)
 

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Free Door Removal
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the front cover I effed up was a GM cover, but my drill wasnt perfectly straight. Should have known better, there was plenty of meat, I just made an error. Easy fix by anyone decent with a TIG and youre good to go.

Joe
 

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Iheartporn
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buickv6 said:
earl, you can scratch silver seal #6571 aswell.

:)

Looks like I might try an Elgin then. I'm hoping for 9/16 on my new engine.
 

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Earl I dont think it would take much for a good welder to just pile up a little weld in that area and make 9/16 no problem, just a thought

joe
 
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