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87m491 |
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#21
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Member ![]() ![]() Group: Members Posts: 292 Joined: 29-July 12 From: Portland, the original! Member No.: 14,731 Region Association: North East States ![]() ![]() |
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930cabman |
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#22
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 3,482 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States ![]() ![]() |
Deforming of single cylinder gasket on bench I could likely handle. Long thin blade slotted screwdriver, a good rap with a SMH Deformed copper gasket Done like dinner I'll bet it can be done on your back under the car. Just make sure you have eye protection |
73-914 |
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#23
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Senior Member ![]() ![]() ![]() Group: Members Posts: 594 Joined: 24-April 10 From: Albany UpstateNY Member No.: 11,651 Region Association: None ![]() ![]() |
1/4 in Cold chisel will cut it easy
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87m491 |
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#24
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Member ![]() ![]() Group: Members Posts: 292 Joined: 29-July 12 From: Portland, the original! Member No.: 14,731 Region Association: North East States ![]() ![]() |
1/4 in Cold chisel will cut it easy As with so many things on the internet YMMV (Widely) Previously posted, in situ, is exactly what a fairly new cold chisel and 2.5lb small sledge, and heat, got me. Appreciate the tips but until I pull the engine, it likely stays put. (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-14731-1708892176.1.jpg) |
technicalninja |
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#25
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,807 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region ![]() ![]() |
I did mine in our 75 upside down.
They were stuck like a bitch too. I used the cheapy harbor freight pick to clear around the perimeter of the copper ring and the parting line at the head exit FIRST. Got all the carbon cleaned off and hit it with PB blaster. Let it sit over night. Still stuck pretty well and I just worked the pick under the oval until they finally popped free. You're still super dirty around the ring... |
rhodyguy |
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#26
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Chimp Sanctuary NW. Check it out. ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 22,184 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch ![]() |
The cold steel chisel is too blunt. Consider the indentations in the copper.
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87m491 |
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#27
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Member ![]() ![]() Group: Members Posts: 292 Joined: 29-July 12 From: Portland, the original! Member No.: 14,731 Region Association: North East States ![]() ![]() |
I did mine in our 75 upside down. They were stuck like a bitch too. I used the cheapy harbor freight pick to clear around the perimeter of the copper ring and the parting line at the head exit FIRST. Got all the carbon cleaned off and hit it with PB blaster. Let it sit over night. Still stuck pretty well and I just worked the pick under the oval until they finally popped free. You're still super dirty around the ring... Because I like closure on threads, and public ridicule, here's the rest of of the story. Given the precise fit, decades old, and hundreds of heat cycled nature of the gasket's history, there was NO WAY any pick was getting in between the gasket and the cylinder head period. I turned a nice flat bladed screw drivers tip 90 degrees and ground a nice sharp edge on it and it got me no where trying to lever around the gasket. Not heat, not penetrant nor cold chisel budged it at all. I then went with a previously broken wood chisel (~3/16s wide) and put a nice point on it. (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-14731-1709558684.1.jpg) While the chisel dug through the gasket, one mis strike also left a nice gouge on an engine fin and still didn't immediately provide an opening to lever out the gasket! (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-14731-1709558685.2.jpg) One might think such a deep cleave in the gasket would easily accept another screw driver blade surfaces to work against but that fit was tight! (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-14731-1709558685.3.jpg) Success was finally achieved but the remaining 3 will await an engine drop and then oil return tube removal so as to proved a few more degrees of leverage which hopefully will make it less of a PITA next winter. Interestingly I "sound checked" the gasket on removal. While a new one tinkled nicely as the hit the floor. The replacement which I annealed before installing made virtually no sound when dropped on concrete and the removed unit was definitely somewhere in the middle, i.e., maybe is was not annealed and that added to its stubborn removal? Thanks for the suggestions. (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-14731-1709558685.4.jpg) |
GregAmy |
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#28
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,351 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States ![]() ![]() |
Good on you for keeping at it!
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930cabman |
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#29
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 3,482 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States ![]() ![]() |
Glad you got it out, but I would be careful of causing damage to the aluminum sealing surface of the head. In the past I have had luck with collapsing the copper and pulling it out with a needle nose. Sorry for the poor pics
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