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Noticed my wifes car had a coolant leak and after I went to fill the coolant, I saw there was a thick film of oil in the reservoir. I ordered the gasket set and tore it down. It took a while but all went pretty well. One exception is that I broke off the top part of the timing chain guide on the exhaust side. this is the piece about two inches long above where it bolts into the block. I looked at it in detail and to me it didn't look like the part that broke off wasn't that critical. This may have been strike 1. I reassembled without pulling the timing cover and installing a new guide.
Well, the car starts fine and runs ok at everthing above idle. It actually idles absolutely fine too. The problem occurs when you give it just a tiny bit of throttle, it stumbles and wants to die. If you rev it up with more throttle, it seems ok. I installed all new vacuum lines and PCV valve and checked to make sure they are in the correct location. I also have taken the valve cover off and tried about a dozen different timing scenarios. Move one sprocket one tooth, move both sprockets one tooth, advance them, retard them, nothing has worked. I will note that no arrangement lines up perfectly with all three timing marks, but They are very very close. I am wondering if the broken piece of chain guide is enough to throw off the timing enough to cause this problem. It seems unlikely to me.
By the way the engine has 185,000 and was in very good shape. Tensioner was in spec, and very clean under the valve cover. Im hoping someone has a word of wisdom for me or can confirm that the broken piece of chain guide is causing the problem. Has anyone pulled the timing cover with the engine in the car and the head on? I would hate to pull the head again with the amount of disassembly necessary. Sorry for the long post. Its getting cold in my garage and I need to wrap this up ASAP. Thanks!
posted by 76.23.22...
, Sun, 15 Dec 2013 10:18:23, Sun, 15 Dec 2013 18:28:44, Thu, 16 Jan 2014 17:42:46
, Sun, 15 Dec 2013 07:44:29
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