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18-11-20, 01:17 PM | #1 | |
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Join Date: May 2011
Location: Buxton
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MB UR Quattro head rebuild.
Following on from my road trip my car is back and it has been confirmed that the camshaft pulley bolt had come undone and the pulley had slipped the shaft. I carried out a compression test prior to commencing head removal which revealed cylinders 1&4 to be without compression. I removed the head with both manifolds an the turbo attached which significantly speeded the job up. Number 1 inlet and number exhaust valves had taken the hit but closer inspection of the piston crown revealed number 2 exhaust had also contacted. New valves and gasket set ordered updates to follow.
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1988 MB quattro 2012 S4 Avant |
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18-11-20, 01:40 PM | #2 |
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Location: Falkirk Scotland
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Shame this happened, looked like you were having a great trip,
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88 100 cs sport |
18-11-20, 02:14 PM | #3 |
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Hi Pete, we were and did have a great trip! If I'm going to be honest it's already just another memory/funny story from our road trip and a valuable lesson learnt.
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1988 MB quattro 2012 S4 Avant |
18-11-20, 02:57 PM | #4 |
4 ring whore!
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Join Date: Aug 2015
Location: Dalgety Bay, Fife
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Planning on just taking the marks off of the crowns or going deeper?
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18-11-20, 03:10 PM | #5 |
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I was just going to dress the high spots with a file, but, as ever, I'll listen to advice.
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1988 MB quattro 2012 S4 Avant |
18-11-20, 03:15 PM | #6 |
4 ring whore!
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That's what I'd do
It'll be fine methinks |
18-11-20, 06:53 PM | #7 |
4 ring whore!
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Join Date: Mar 2011
Location: Scottish Borders.
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Tidy looking engine bay even with the head off.
Good luck rebuilding |
18-11-20, 08:11 PM | #8 |
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Join Date: Jul 2007
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It’s going to be fine, if you can strip it down and crack on that quick yourself, then I’m sure you’ll quickly work through the fix
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1985 WR quattro, 1985 20vT RallyRep, 1993 MTM ABY S2 Avant. 2010 S3 Sportback. |
18-11-20, 08:28 PM | #9 |
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Join Date: Apr 2018
Location: Wales
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Looks very similar to the one I did recently. Just check the valve guides are ok. A little wear is normal on these engines but excessive play will need addressing.
I was working on a 20v engine and had to replace all 10 intake valves! |
21-12-20, 10:45 AM | #10 |
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Back together and running!
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1988 MB quattro 2012 S4 Avant |
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