 Secondary Oil Pressure Relief Valve Stuck |
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| tornik550 |
 Jan 8 2011, 09:34 PM
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#1
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Senior Member  Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None  |
I am in the process of rebuilding my engine. I recently obtained a EA case with about 20k mile on it. Structurally, it is in excellent shape. The problem is that the unassembled case had been sitting in the back seat of a broken down VW bus for the past 20 years. There is a bunch of crap and corrosion on it. The large 12 point star bolt was removed (prior to its 20 year rest) and the secondary oil relief valve has been exposed to the elements for the past 20 years. I can see it and it looks very corroded. I cannot get the bastard out.
I tried a magnet- no luck. I tried a jamming a larger diameter dowel into it then tried pulling it out- no luck. There is a hole that you can access from the inside of the case, you can stick a small screw driver in- I tried to push the valve out from behind- no luck. Any ideas on how to get it out? How about drilling the part of the valve out- tapping it than pulling it out? |
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| DNHunt |
Jan 9 2011, 09:31 AM
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914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
I don't think I'd drill it. Patience, penetrating oil, and heat would be my tools. If you are married to the case have machinist look at it. I would have some concerns about what might be it passages. Here we get wasps that nest in places like that. Anyway, I wouldn't put a bunch of effort and money into it, I'd find a different case.
Dave |
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| SLITS |
Jan 9 2011, 09:35 AM
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#3
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
Use a tap of sufficient size, thread it in to get a hold of it and try to pull it out with the tap. Soaking with PB Blaster should help.
Actually, I'm of no help at all as I have a 2.7 case with the same problem ... I'll get it out someday. (IMG:style_emoticons/default/smash.gif) (IMG:style_emoticons/default/sawzall-smiley.gif) (IMG:style_emoticons/default/ar15.gif) |
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| tornik550 |
Jan 9 2011, 10:30 AM
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#4
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Senior Member Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None |
Since there are some cases that do not have the secondary relief piston, are they even necessary? Is there a way to block it off?
I do have another case. It is a bus case that was modded for a 914. I haven't really looked that case over yet. My bus case doesn't have secondary relief piston. |
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| orange914 |
Jan 9 2011, 11:35 AM
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#5
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http://5starmediaworks.com/index.html Group: Members Posts: 3,371 Joined: 26-March 05 From: Ceres, California Member No.: 3,818 Region Association: Northern California |
QUOTE(tornik550 @ Jan 9 2011, 08:30 AM)  Since there are some cases that do not have the secondary relief piston, are they even necessary? Is there a way to block it off? good question... what benifit does the secondary have (or not)? somewhere here is a oil passage diagram. it was helpful to me when doing my 2056, but retaining that stuff anymore just doesn't seem to stick (IMG:style_emoticons/default/sad.gif) |
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