[phoenix827]

when you downshifet did it rev WAY up? Might have spun a bearing. I got lucky with mine, droped back into place about 10 min later! Don't count on that though.

 

[phoenix827]

when you downshifet did it rev WAY up? Might have spun a bearing. I got lucky with mine, droped back into place about 10 min later! Don't count on that though.

Ummmm,..........what? You're saying that you spun a bearing, and that it actually spun back into position?
Jay

Guess so, never heard another peep out of it! Pretty sure if it just fell out it would have at least stayed the same if not gotten worse. (and no this was not on a honda! ) Had the car for about a year after that and never had a prob with it. Of course when I sold it the guy put a blower on it and it lasted about 2 weeks!! Blew the whole bottom end apart he said!! Gotta love that motor!! (1981 pontiac phoenix, 2.5 ltr 4 banger!)

 

[phoenix827]

Guess so, never heard another peep out of it! Pretty sure if it just fell out it would have at least stayed the same if not gotten worse. (and no this was not on a honda! ) Had the car for about a year after that and never had a prob with it. Of course when I sold it the guy put a blower on it and it lasted about 2 weeks!! Blew the whole bottom end apart he said!! Gotta love that motor!! (1981 pontiac phoenix, 2.5 ltr 4 banger!)

Bear with me, I'm having a hard time believing that........the reason is that there are two "tangs" that position the bearing, now one it spins in the bearing cap then the tangs are effectively removed......so there is now no one "place" for it to go back into position. It can spin back to the starting spot, however it won't stop there, it'll continue to spin, generally until it "rolls" the bearing. Unless you pulled the engine apart and could somehow explain what happened I'll have to stick with the belief that it did not spin a bearingJay

right, but wont the edges stop it as it comes back around? Dunno for sure as I am no mech! (just shadetree) .

Something may have happened, but spinning bearings don't make any noise to speak of, it's the noise that happens after they've spun and the tolerences become loose enough that you can hear the metal actually hitting.

YUP! Had a friend that was nice enough to teach me what it sounds like!! Rat in the motor with a sledgehammer sound was there!! Could feel it throught the whole car, No doubts about that!
As far as the other question about oil pressure I have no idea, the light never came on that I saw but had a bit of tunnel vision at the time. I had gotten fired and almost arrested that am, Went for a ride before I went home and was out on a dirt road when I let my top blow. They had re-done part of the road with pea gravel, was still soft and I was bogging down bad. Went to down shift and missed the shift BAD! (saw the nedle stop moving on the tach cus it was so hi kind of bad). Motor started knocking real bad and though it was done. I took it real easy getting out of there and going home, by the time I got home the knocking had stopped. From what I told a few friends/mechanics that was their diagnosis.

 

[phoenix827]

right, but wont the edges stop it as it comes back around? Dunno for sure as I am no mech! (just shadetree) .

Not really, since the "edges" aren't there once the cap is torqued down.......if edges were perceptible then the bearings would never form a perfect circle and thus be too tight on the crank journals in spots. The cap and rod (or block) are machined as one piece (bolted together) specifically to eliminate any edge. Jay

No I mean the edges of the bearing halfs, If one half rides up over the other then won't it only work around once?