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64k. Needed a new cam cover gasket and distributor hole plug to squelch oil leaks and had to replace my MPperformance steering rack mount with a new one (with the better glue on the rubber pad). For the record, here is what I found on the head bolt replacement;
Easier to remove the cam cover than on my 94 SE, more hoses to move, but easier access to them. All my cam cover screws were loose, some you could remove by hand (Gee, why didn't I check this before buying the gasket and plug?) Maybe because I wanted to get at those bothersome head bolts, before I blew a head gasket.
I have been using M1 0-40 for last 20k (5k interval changes), Castrol FakeTech used by previous owner at 5 k intervals. There was much more black goo in this motor than I found in my 1994 900 SE a month ago (that car has 150k), I have been using M1 0-40 there for 50k (5k intervals, Castrol GTX Pure Dino oil for first 100k (3k intervals). So, what to conclude from this? Either FakeTech makes more sludge than the plain Castrol dino oil, or the M1 cleaning effect takes a long while, or there is some issue with the pollution control systems on the newer car that contribute to the abundance of goo.
Now for the bolts. I do not have any head gasket issues yet, and I wnted to do this before I did. Head size is E16. All were found to be fairly snug and took 38-53 ft/lbs to break loose. Number 10 bolt was at 48 lbs, this is usually the loose one. All bolts were the gray type Anders cites in his photo, code stamped BH on head. I used a dial calipers to measure the length of each bolt for determination of amount of strech (or poor QA in bolt manufacturing, however you want to look at it). All measured between 4.521" and 4.528", and not suprisingly the bolts that took more torque to remove happened to be the longer (or more stretched) ones. According to the previous owner, these bolts were never retorqued. I was surprised to find them fairly tight.
The new bolts appear to be the type in my 1994 SE, top not threaded and no washer (got 'em from Eeuroparts) and are code stamped VRG 18.9. These bolts are 4.434" - 4.436" (end to end)indicating the amount of stretch my original bolts had was on the order of .085" - .090"., or that the bolts are merely shorter. If the ones in my car stretched that much, I sure would not want to retorque them and bust one or more off.
So now I have the new, old style bolts at the old style torque value, new cam cover gasket and distributor hole plug. Hope nothing leaks.
posted by 24.236.8...
, Thu, 24 Mar 2005 20:09:28
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