Head gasket does not match up with block ?

carl johansson · 07-30-2012, 12:53 AM

OK Guys,
I pulled the head gasket, As expected, between 3 & 4 it was completely missing - had a gap about an inch wide. If I could figure out how to post a photo i would.

But the part that confuses me. On the intake side, the block cooling openings are singular, (not paired like the exhaust side) and not as oblong. The head gasket however, has the paired comma shaped oblong copper lined openings. and the gap between the 2 openings, partially covers the coolant hole in the block.

Does this sound correct to you guys? I just went and looked at my spare block and it looks like it has the same arrangement. Is it acceptable for the head gasket to partially block the opening on the intake side.?

Bill UK · 07-30-2012, 08:26 PM

Stock head gasket (upside down )

Bill UK · 07-30-2012, 09:08 PM

I think this is what you’re referring to (pic below) I`ve seen post with the same question, but never noticed it when doing a HG myself to be honest.

Click image for larger version

Name: US Forum headgasket.JPG
Views: 384
Size: 43.8 KB
ID: 4643

Bill UK · 07-30-2012, 09:29 PM

Having a problem with photobucket at the moment, my first post may not display the image. The last post is an attachement.

carl johansson · 07-31-2012, 01:52 AM

Quote:

Originally Posted by Bill UK

I think this is what you’re referring to (pic below) I`ve seen post with the same question, but never noticed it when doing a HG myself to be honest.
Attachment 4643

Thats it exactly Bill, it just doesn't seem correct, but everything i have seen so far says it's OK.

cre · 07-31-2012, 05:16 AM

Yes, it's fine. The HG accounts for coolant passages whcich were decided unessential. Someone over at SM drilled out the missing passages but las tI heard it made no Earth shattering difference and no one knows the expense paid in structural resillience.

07-30-2012, 12:53 AM	#1
carl johansson 3" Exhaust Join Date: Nov 2007 Location: Auberry, California Posts: 141	Head gasket does not match up with block ? OK Guys, I pulled the head gasket, As expected, between 3 & 4 it was completely missing - had a gap about an inch wide. If I could figure out how to post a photo i would. But the part that confuses me. On the intake side, the block cooling openings are singular, (not paired like the exhaust side) and not as oblong. The head gasket however, has the paired comma shaped oblong copper lined openings. and the gap between the 2 openings, partially covers the coolant hole in the block. Does this sound correct to you guys? I just went and looked at my spare block and it looks like it has the same arrangement. Is it acceptable for the head gasket to partially block the opening on the intake side.?

07-31-2012, 05:16 AM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Yes, it's fine. The HG accounts for coolant passages whcich were decided unessential. Someone over at SM drilled out the missing passages but las tI heard it made no Earth shattering difference and no one knows the expense paid in structural resillience. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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07-30-2012, 08:26 PM	#2
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	Stock head gasket (upside down )

07-30-2012, 09:08 PM	#3
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	I think this is what you’re referring to (pic below) I`ve seen post with the same question, but never noticed it when doing a HG myself to be honest.

07-30-2012, 09:29 PM	#4
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	Having a problem with photobucket at the moment, my first post may not display the image. The last post is an attachement.