Cam Cover R&R Questions (Refresher) - ZR-1 Net Registry Forums

-=Jeff=- · 02-27-2016

It has been a bunch of years since doing this..

I have one cover off as i need to replace the breather filters in them

Anaerobic sealer, it is applied to the perimeter only?

I have both surfaces clean and I am ready to install the covers.. do I put oil or engine lube on the bearing surfaces of the cover prior to install?

Cover end plugs.. install them on the head then let the cam cover get placed over them?

Thanks

oricale · 02-28-2016

Jeff,

Run the sealer on the perimeter-to include the holes for the cam cover bolts, I also run a very thin layer around the spark plug area's(not trying to get the Anaerobic sealer in the O-ring area)-sort of like a first line of defense with the O-ring being second.(what I look for is a fair and consistent bead of the sealant when cam cover are torqued)

when it comes to the end covers, I personally mount the two fwd cap's on the heads and the aft ones on the cam cover. I run a bead of Anaerobic sealant in the little valley for the caps too..you dont need too much, just enough to add a layer of protection.

Lube:..if there was a reason to clean the journals(dirt, old sealant, boredom, getting away from the wife, nerding out in the cam cover

...yes I would put lube (not a whole lot-unless your changing oil soon) on ALL rotating surfaces...way better to be safe...

-=Jeff=- · 02-28-2016

I had to clean the cover to get the remnants of the old sealant off. Thanks for the tips.

how big of a bead do you use?

A26B · 02-28-2016

Using the correct sealant is critical. It must be "non-shimming." If it does not meet this specification it could inadvertently increase the camshaft journal bearing clearance.

http://www.jerrysgaskets.com/permabo...-sealant-13b4/

GM specifies PermaBond A136. Permabond quit making this product a few years ago, but we were able to get them to produce it again. Be careful about pseudo-products like "Perma-Lok" etc. We provide Permabond to the most well known LT5 engine builders and others.

Loctite 518 was used before Permabond A136 became available.

-=Jeff=- · 02-28-2016

Thanks Jerry. I have loctite 518. I forgot you had the A136

I have the passenger side back together. I need to pull the driverside apart still

Paul Workman · 02-29-2016

Quote:

Originally Posted by A26B

Using the correct sealant is critical. It must be "non-shimming." If it does not meet this specification it could inadvertently increase the camshaft journal bearing clearance.

http://www.jerrysgaskets.com/permabo...-sealant-13b4/

GM specifies PermaBond A136. Permabond quit making this product a few years ago, but we were able to get them to produce it again. Be careful about pseudo-products like "Perma-Lok" etc. We provide Permabond to the most well known LT5 engine builders and others.

Loctite 518 was used before Permabond A136 became available.

Bookmarked...

Dynomite · 02-29-2016

Quote:

Originally Posted by Paul Workman

Bookmarked...

Cam cover sealant A136

oricale · 02-29-2016

YEP,..A136..only sealant I use..!...

02-27-2016	#1
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,165	Cam Cover R&R Questions (Refresher) It has been a bunch of years since doing this.. I have one cover off as i need to replace the breather filters in them Anaerobic sealer, it is applied to the perimeter only? I have both surfaces clean and I am ready to install the covers.. do I put oil or engine lube on the bearing surfaces of the cover prior to install? Cover end plugs.. install them on the head then let the cam cover get placed over them? Thanks __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978

02-28-2016	#2
oricale Join Date: Oct 2011 Location: STAFFORD VA, Posts: 576	Re: Cam Cover R&R Questions (Refresher) Jeff, Run the sealer on the perimeter-to include the holes for the cam cover bolts, I also run a very thin layer around the spark plug area's(not trying to get the Anaerobic sealer in the O-ring area)-sort of like a first line of defense with the O-ring being second.(what I look for is a fair and consistent bead of the sealant when cam cover are torqued) when it comes to the end covers, I personally mount the two fwd cap's on the heads and the aft ones on the cam cover. I run a bead of Anaerobic sealant in the little valley for the caps too..you dont need too much, just enough to add a layer of protection. Lube:..if there was a reason to clean the journals(dirt, old sealant, boredom, getting away from the wife, nerding out in the cam cover...yes I would put lube (not a whole lot-unless your changing oil soon) on ALL rotating surfaces...way better to be safe... Last edited by oricale; 02-28-2016 at 07:58 AM.

02-28-2016	#3
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,165	Re: Cam Cover R&R Questions (Refresher) I had to clean the cover to get the remnants of the old sealant off. Thanks for the tips. how big of a bead do you use? __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978

02-28-2016	#4
A26B Join Date: Dec 2003 Location: Arcadia, OK Posts: 3,403	Re: Cam Cover R&R Questions (Refresher) Using the correct sealant is critical. It must be "non-shimming." If it does not meet this specification it could inadvertently increase the camshaft journal bearing clearance. http://www.jerrysgaskets.com/permabo...-sealant-13b4/ GM specifies PermaBond A136. Permabond quit making this product a few years ago, but we were able to get them to produce it again. Be careful about pseudo-products like "Perma-Lok" etc. We provide Permabond to the most well known LT5 engine builders and others. Loctite 518 was used before Permabond A136 became available. __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1*, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed.

02-28-2016	#5
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,165	Re: Cam Cover R&R Questions (Refresher) Thanks Jerry. I have loctite 518. I forgot you had the A136 I have the passenger side back together. I need to pull the driverside apart still __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978

02-29-2016	#8
oricale Join Date: Oct 2011 Location: STAFFORD VA, Posts: 576	Re: Cam Cover R&R Questions (Refresher) YEP,..A136..only sealant I use..!...