On Tue, 30 Mar 1999, BRUCE PHILLIPS wrote:
>
> To The Learned List
>
> Today was the first day of using the "B" as my daily driver for 2
>months.
> Great day ,great weather and disappointment. After a shakedown last night
> on taking the car out of storage I was ready for the day. By the way the
> car is a 64 "B" 3 main engine. After attending the Rotary meeting at lunch
> I went to renew my plates for another year. On the way (2 miles), I heard a
> funny noise from the engine. The noise was like an octane knock and only
> was severe "under load". I got my plates , went back to work and puzzled
> over the noise. I couldn,t take it any more and left work to limp home and
> check things out. I suspected cylinder #3 and low and behold 25 lb's
> compression. Number two 150 lbs. Not going further I decided that the head
> had to come off. I was concerned what I would find ,but 1 1/2 hrs later the
> head is off. Relief is spelled "blown head gasket" between #3 and #4.
>
> I have a spare gasket set so that's not a problem. The motor does not
>have
> many miles on it and doesn't even have ridges at the top of the cylinders.
> My question is why did it blow ? There is no apparent warping or water
> leaks. Is this something that I replace and hope or is there a common
> cause. The internals and plugs look great. There was no overheating and 60
> lbs. of oil pressure. The one thing that I have done with these engines
> since I can remember is to advance them to the threshold of "ping". What I
> mean here is that the car does "ping" slightly going up hills and under
> load. Could this have caused the problem ?
> Any idea's great fully accepted before I re assemble on Friday.
>
> Thanks in Advance
> Bruce Phillips
>
> 64 "B" roadster "headless"
> 69 "GT" nearing end of restoration
> 77 "B" roadster awaiting restoration
>
The pinging going up hills can also spell worn bearings. You
might want to consider pulling the oil pan and checking rod bearings. A
ruined crankshaft is a lot more expensive than a set of bearings.
...Art
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