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Old 06-21-2003, 06:27 PM
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SBC timing chain cover Install

Hi everyone, I know I saw apost on this but have searched and searched and can't find it again . On an 86 Chev 305, can the timing chain cover be removed and reinstalled without dropping the oil pan ? Just starting my cam replacement and hope this won't be a snag. Thx

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Old 06-21-2003, 08:20 PM
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You can remove the timing cover without removing the pan, yust remove the first 5-6 bolts in the front of the pan and wedge a large flat screwdriver or chisel between the pan and block on each side between the first two bolt holes, this will lower the front of the pan approx 1/8" . Then pry the cover forward at the top(easily) pulling forward till the cover clears the lower pan seal. Before you re install the cover ,trim the top corners (on the cover) pan seal rail, at a 45% angle, so it will slip into place with a new rubber sear glued to it, use sealer on the pan gasket and re assemble it.
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Old 06-22-2003, 06:26 AM
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Thx Bob, that will make the job a lot easier considering the facilities I have work in.
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Old 06-22-2003, 03:14 PM
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Quote:
Originally posted by BOBCRMAN@aol.com
You can remove the timing cover without removing the pan, yust remove the first 5-6 bolts in the front of the pan and wedge a large flat screwdriver or chisel between the pan and block on each side between the first two bolt holes, this will lower the front of the pan approx 1/8" . Then pry the cover forward at the top(easily) pulling forward till the cover clears the lower pan seal. Before you re install the cover ,trim the top corners (on the cover) pan seal rail, at a 45% angle, so it will slip into place with a new rubber sear glued to it, use sealer on the pan gasket and re assemble it.
You will also have to remove the harmonic balancer, the timing chain cover(stock) will not come off unless the balancer is removed...
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Old 06-23-2003, 07:19 AM
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I tried that on my ´86 Camaro and was plagued with oil leaks.
It is best to bite the bullet and lift the engine up and drop the pan.I did a cam change and went for the oil pump as well,just beware of the wiper motor when lifting the engine and block it with wood on both sides.If you try to reinstall the timing cover with just a few pan bolts removed it does not seat well on the pan gasket.Another tip is to use pan studs,because it is a pig of a job laying on your back puting those little bolts in.
By the way if your 305 is like mine,an engine change is not far away.I did all that work and now I am building a 355.The 305 was an oil burner,check your spark plug threads for oil,especially number 7.

Last edited by malc; 06-23-2003 at 07:24 AM.
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Old 06-23-2003, 09:00 PM
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I did my 78 305 without loosening the pan. I beveled the rubbe seal, put a blob of Permatex #2 in the corners, coated the seal & gasket with P. #3, & popped it back in. I ran it for 2 years like that & the only thing that leaked was the valve covers (factory non-gasket).
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Old 06-16-2004, 05:08 PM
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good timing (pun)

do i need a new seal? why wouldnt i be able to re-use mine. i have another cover gasket but not another rubber seal. glued with what? weatherstrip glue or would permatex 300 work on the rubber. i would plan on using it to brush the sealer onto the pan gasket anyway to get it all the way up into the corner where it seperates from the block.

when you say the first 5 bolts i take it you mean on each side? thats half way to the back of the pan.
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Old 06-16-2004, 05:20 PM
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on my 350 i loosened all the bolts on the oil pan and then took of the timing cover.
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Old 06-16-2004, 05:38 PM
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I just repaced my cam without loosening the pan too. Was a bit tough getting the cover off but with care I got it off without wrecking anything. I trimmed the
metal on the inside corners like was mentioned anduseda generous amount of Ultra Copper silicone. Andafter the cover was all on I cleaned everything well and put a smear of Ultra Copper around the bottom of the cover and the pan corners again. No leaks at all. I paint my Chevy engines orange and the Ultra Copper stuff is orange so it does a nice job and looks great when done. Nothing worse than a nice orange chevy small block with BLACK or BLUE silicone glaring out at you from all over.
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Old 06-16-2004, 05:45 PM
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i wish i knew about that stuff before i rebuilt my 350 i have some blue and some black shining through my nice new orange paint job
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Old 06-16-2004, 05:51 PM
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The Permatex Ultra Copper is high heat and is all I ever use. I often wonder why I almost never see anybody else using it. Does anybody know something about it that I don't? I have always been happy with it.
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Old 06-16-2004, 07:40 PM
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where do you get it?? ive only seen the black and blue...is it a well known product?
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Old 06-16-2004, 08:07 PM
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Well here in our part of Canada it is hanging right next to the others. Made by the same company. All auto parts and hardware stores have it.
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Old 06-16-2004, 08:18 PM
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mayb ill have to look alittle harder next time
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Old 06-17-2004, 01:25 AM
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Quote:
Originally posted by Ktaves1971
The Permatex Ultra Copper is high heat and is all I ever use. I often wonder why I almost never see anybody else using it. Does anybody know something about it that I don't? I have always been happy with it.
I am with you I use it in almost all applications, seems to be thicker and I have had problems with others and switched back to ultra copper and have had the best services. Ed ke6bnl kinda newbie to more involved engine work though.
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