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John90290 |
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#1
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Member ![]() ![]() Group: Members Posts: 93 Joined: 4-March 18 From: Ventura, CA Member No.: 21,937 Region Association: None ![]() |
Adjusting the valves on my 1975 1.8 that I just put new pistons in. I’m going through the process as outlined on a few manuals but for some reason it doesn’t feel right? I’ve never done this before so the manuals I have don’t really have good pictures and the videos and such just say go to tdc and adjust. I get to the tdc mark but feel I need to turn it a bit more to get the valves on the number one to fully close. Also when I move on the the other cyclyndsrs after moving the crank 180 degrees, the ones I previously adjusted seem loose. Not sure if thes makes sense. I don’t want to get it back in the car and have it not run.
I’ve seen valve adjustment discussions on this forum before but couldn’t find them doing the search. |
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HAM Inc |
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#2
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Senior Member ![]() ![]() ![]() Group: Members Posts: 846 Joined: 24-July 06 From: Watkinsville,GA Member No.: 6,499 Region Association: None ![]() |
Like Chris said, the dimple usually indicates a sodium filled valve. You should see the mess it makes of the engine when those hollow old valves break.
And the valves aren't the only scary things in those pictures; those springs are terrifying! |
John90290 |
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#3
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Member ![]() ![]() Group: Members Posts: 93 Joined: 4-March 18 From: Ventura, CA Member No.: 21,937 Region Association: None ![]() |
Like Chris said, the dimple usually indicates a sodium filled valve. You should see the mess it makes of the engine when those hollow old valves break. And the valves aren't the only scary things in those pictures; those springs are terrifying! Most of the replacement valves I see on line have the dimples regardless of their sodium status. Here is one example. New AE Exhaust Valve Porsche 914 912 1976 https://rover.ebay.com/rover/0/0/0?mpre=htt...%2F152559390949 Please explain the spring comment if you can. Why are they terrifying? Thanks. |
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