2.0 Cylinder Gaskets, Should they be used? |
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2.0 Cylinder Gaskets, Should they be used? |
jack20 |
Apr 9 2020, 12:43 PM
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#1
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Member Group: Members Posts: 412 Joined: 7-November 14 From: Granite Bay, CA Member No.: 18,099 Region Association: Northern California |
Hello,
I had leaking pushrod tube seals and dropped the engine to make the job easier. I decided to pull the heads to check condition. I’ve done quite a bit of reading about whether or not gaskets should be used between the cylinder and case and between the cylinder and head. Some posters point to a service bulletin stating not to use gaskets. I have metal spacers/gaskets between the heads and cylinders. I think this engine has been rebuilt once before I got it. It runs well but it’s not as quick as another 914 2.0 I had years ago. Maybe the other car had higher compression and no gasket? I’m wondering if this metal gasket should be there. I haven’t checked for a gasket between the cylinder and case. My 356 has a thin copper gasket between the cylinder and case. Can anyone shed some light in this? Thanks in advance, Jack |
jack20 |
Apr 12 2020, 11:21 AM
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#2
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Member Group: Members Posts: 412 Joined: 7-November 14 From: Granite Bay, CA Member No.: 18,099 Region Association: Northern California |
You won’t get blasted by me. I appreciate the perspective you laid out.
I could go to the trouble of buying the components to CC the heads and frankly I’d like to do it but given what I’m trying to accomplish, I don’t think I’d really gain anything. This project started out as a pushrod tube seal replacement. I pulled the heads to check the carbon buildup on the pistons and combustion chamber on this ~50,000 mile engine. That’s when I noticed the head gaskets. My 356 doesn’t have head gaskets and that’s why I asked the question about the need for them. My research before posting caused me to think they should be eliminated. This engine runs well so all I want to do is de-carbon, lap the valves, change the tube seals, either replace the head gaskets or eliminate them by creating 1mm of deck height at the base. Everyone has weighed in with very valuable info and I have learned a lot. This forum is superior to any car or motorcycle forum I’ve experienced. |
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