Pushrod, lifter, valve, etc. PROBLEM., Daily Driver emergency! |
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Pushrod, lifter, valve, etc. PROBLEM., Daily Driver emergency! |
ripper911 |
May 9 2016, 06:18 PM
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#21
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corde pulsum tangite Group: Members Posts: 2,920 Joined: 25-April 10 From: Powder Springs, GA Member No.: 11,654 Region Association: South East States |
I went to perform a valve adjustment and the exhaust valve on #4 wouldn't tighten. I got frustrated and called in a travelling 914 mechanic.
The screw was binding in the rocker, but he got it tightened enough to try to adjust. It wasn't moving while turning the engine. I was left with instructions to pull the rockers and check the pushrod as it might be bent. I pulled the pushed out, and it looks pretty straight to me, so he said to pull the lifter out with a magnet and inspect it. This is where I'm stuck. I was having trouble with my extendable magnet extending and collapsing while trying to pull the lifter out. I bought some new magnets, but I'm still not having any luck. The mechanic said that it takes some finessing to get out. Is there a trick to it? What makes it worse is that I have been using one of my boss's cars in the meantime, but they're selling the business (closing on sale Wednesday) so I need to give the car back. I'll get the mechanic back over here soon, but going on my knowledge of the car, if the pushrod isn't bent, and if the lifter turns out to be OK, then it won't be something I can fix over the weekend. Help... (IMG:style_emoticons/default/unsure.gif) |
Dave_Darling |
May 9 2016, 07:57 PM
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#22
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914 Idiot Group: Members Posts: 15,048 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
No trick to it; just get the magnet down to the lifter.
What was keeping the valve from tightening? Did you have the lug screwed all the way into the rocker arm? Did you run out of threads? Was the lug turning without moving inward? Was the jam nut turning on the lug? Could be the valve tip wearing or the adjusting lug wearing--try removing it and inspecting the end of each for wear. Could be something like the pushrod hanging up on the edge of the lifter cup, or could be a seat dropping. Especially if it's an intake valve. --DD |
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