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Message started by Pump_Jockey on 09/27/07 at 20:40:22

Title: trans counter shaft make engine knock?
Post by Pump_Jockey on 09/27/07 at 20:40:22

I've got a severe engine knock on a '98 that I just bought. Digging into it, I've found that someone's been in the clutch and put the oil pump drive gear on bass ackwards. It ground on the case and siezed up the counter shaft bearing on the transmission. I assume that this is the culprit to the hella knock(lugging the motor, etc.). Sound right?
Thanks!

Title: Re: trans counter shaft make engine knock?
Post by Rockin_John on 09/27/07 at 22:26:56

So the engine will run with the clutch in, but it knocks? And the Oil pump is out of commission? I think you're looking at double trouble. IOW: Both the engine and trans are probably in bad shape. Only one way to know the full extent of damages. Pull the engine; crack the cases, and what you see is what you got. :-/

Title: Re: trans counter shaft make engine knock?
Post by Pump_Jockey on 09/28/07 at 05:52:20

I've split the case looking for the knock, when I found the bearing issue. The engine ran and drove (knocked and seemed shy on power). Everything seems okay inside other than the counter shaft bearing behind the clutch. It got hot from the grindage. I'm wondering if the bearing drag was lugging the engine so much to make it knock that bad... ignition or the counter balancer?

Title: Re: trans counter shaft make engine knock?
Post by T-Mack1 on 09/28/07 at 09:04:50

The bearing most likely didn't seize from heat, it's bathed with oil. I would bet it was particles that caused it to jam, by getting wedged into the bearing.

Is there damage to the case where the bearing fits or the the surface of the imtermediate shaft where is fits inthe bearing???

Title: Re: trans counter shaft make engine knock?
Post by Pump_Jockey on 09/28/07 at 22:19:09

The case damage is on the outside of the case....clutch side. My ultimate question is still, would the bearing drag make the engine knock?

Title: Re: trans counter shaft make engine knock?
Post by T-Mack1 on 09/29/07 at 19:32:40

Good question. I would at first say no, ........but if particles had got into bearing....... little ones at first,..... they may have caused a bump and that could sound like a knock. But I think that might be hard to hear.

Are they many particles smashed into the tranny gears?