

| Subject: | Re: 87GL rebuild update (oil pressure) |
| From: | Mark Gajewski |
| Date: | Wed, 2 Dec 1998 10:01:18 -0500 |
Wow, RacerX you are my model for calm in the face of adversity. Personally, I would be flipping out if I just rebuilt and installed an engine only to find out about the wrong bearing size. I have done many less frustrating things and gone mad for days thinking about all the wasted and lost time. Better way to look at it...what a learning experience. I love that! I aspire to be half as accepting of the problems inevitably incountered when being a backyard mechanic. Mark Racer X wrote: > Hey Joshua- > Thanks for getting back to me. > I'm in the process now of finding out if the bearings that I bought from > Bus Depot were the wrong size. First I ordered the standards and then > found out that my crank needed to be ground. They did a "first grind", > taking off .010". I then called Bus Depot and ordered some new bearings, > supposedly for that new size, but when they arrived, they were clearly > too thick. So...foolishly, I put in the standards, thinking they were > right (and they did 'seem' to fit pretty tight). > I'm new to this bearing stuff as this is the first engine I've rebuilt. > This is a great learning experience! I must say that I'm getting pretty > good at pulling my engine! > Anyway, I wrote Ron an email yesterday to ask him to second check the > numbers on the bearings and see if I could exchange them for the right > size. Haven't heard back from him yet... > > Keepin' my fingers crossed at this point. > > --------------------------- > > Joshua Van Tol wrote: > > > > >Hey folks...Hope this has been a Happy Thanksgiving for all of you. > > >Now...on to the new problem! > > > > > >Well, I've pretty much done all I can and the same problem is > > >resurfacing in my van... > > > > > >Rebuilt, new bearings, rings, gaskets, oil pump, oil pickup tube (as > > >well as other things) I've got a new VW filter, GTX 20w50 oil, VDO oil > > >pressure gauge. > > > > > >Motor cranks up fine, idles fine, initial oil pressure is fine. Then, > > >after running for about 15 minutes the oil pressure starts to drop. When > > >it reaches 9 bar, the idiot light comes on. I've got both oil pressure > > >senders new... Then the engine stalls, or if you step on the gas, it > > >stalls...The outside temperature of the block is about 120� when this happens. > > > > > >What up? I don't have a clue. It was doing this same thing before and I > > >thought it was the bearings. I had no oil pressure problems before I > > >started this job as it started out to be just a head gasket rebuild. > > >After I got into it I chose to redo the whole thing. > > > > My guess: Either you have the wrong size bearings (could be an align bored > > case, for example) or your crank was machined wrong, or you could have left > > out a bearing shell, or the oil pump could be worn out. What it comes down > > to is you are going to have to take that engine apart, and find out what's > > out of tolerance. > > > > Joshua Van Tol -- jjvantol@lear.csp.ee.memphis.edu
Have something to add on this topic today? Revive this thread in the forum »