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Philm 11-11-2010 04:43 AM

Brass distributor gear?

4bus 11-11-2010 07:45 AM


Originally Posted by Philm (Post 3250978)
Brass distributor gear?

Pretty sure the 496 is a distributorless ignition with coil on plug

Rage 11-11-2010 08:06 AM

When I make hard runs I trim the drive out under load to gain bow lift at WOT. Could that be over loading the thrust bearing? The coupler is heavily lubed with the Merc specified lube.

Ted G 11-11-2010 08:12 AM


Originally Posted by Rage (Post 3251085)
When I make hard runs I trim the drive out under load to gain bow lift at WOT. Could that be over loading the thrust bearing? The coupler is heavily lubed with the Merc specified lube.


No, but if there is too much grease in the coupler packed in at the front it can overload the thrust bearing.

Rage 11-11-2010 12:51 PM


Originally Posted by 4bus (Post 3251073)
Pretty sure the 496 is a distributorless ignition with coil on plug

Yes mine is an EFI set up. Thanks for the thought though.

DesertRage 11-11-2010 03:18 PM

Rage, Check to make sure your engine mounts are still tight. I have seen the 3/4" nut back off on the pedestal mounts. This would let the engine torque up and put pressure on the rear main thrust bearing. Just a thought... The ones I have seen were the port side.

Rage 11-11-2010 05:03 PM


Originally Posted by DesertRage (Post 3251389)
Rage, Check to make sure your engine mounts are still tight. I have seen the 3/4" nut back off on the pedestal mounts. This would let the engine torque up and put pressure on the rear main thrust bearing. Just a thought... The ones I have seen were the port side.

Hey Jon, thanks for the suggestion! I need all the help I can get.

mike11 11-12-2010 03:23 AM

valve spring shims....

Rage 11-12-2010 08:06 AM


Originally Posted by mike11 (Post 3251685)
valve spring shims....

Yes, I have the copper flash coated shims but they have hundreds of hours on them and the copper was mostly gone before this spike in copper in the oil occured. Thanks for the input.

4bus 11-12-2010 08:23 AM

Rage- Are you going to tear it down?


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