TNT63Falcon

Need help on remanufactured engine. Engine #M96/03AT66565745. Not a lot of information on the engine, other than it had about 70k miles on it.

This engine was purchased "used" from dismantler in Los Angeles, by the PO of my project car, and came with the car that had a "smoking" engine. Diagnosis was a cracked cylinder head and the reason a replacement engine was sought.

Upon preparation of replacing a lot of items on the "new" engine, I was getting ready to install a new IMSB, and discovered the nut on the existing IMBS was much larger than described in Dempsey's book. That made me look at the engine number and I discovered it was a remanufactured engine.

Does this mean the "new" engine's IMSB can't be replaced? Is this a good or a bad thing?

Thanks!

Porschetech3

Yes, It means the IMS bearing cannot be replaced.

dan_189

I'd say you're all good to go!

TNT63Falcon

So I am "guessing" that the remanufactured engine has a more robust bearing, which came in the later engines that didn't have the same chronic problem as earlier single and double row bearings.

Said another way, there is not the same desire/need to replace these as there is the earlier bearings.

Correct?

dan_189

Correct, problem was identified and a bigger more robust bearing designed/installed to mitigate the failure.

TNT63Falcon

Ok. I already had the cams locked, chain tensioner out and ready to rock, when I discovered it. Guess I will button it back up and get it mated to the Tiptronic.

Nice to see I got a more robust engine.

dan_189

Had you bought the bearing yet or were you waiting to take it out first?

Would be a good time to consider other maintenance items whilst your engine is out too.

TNT63Falcon

No. I already bought the Pelican Parts replacement bearing and LN install tools (used).

You are correct. Since I already dropped the engine/transmission, I planned on, and have done:

Power Steering Pump
Alternator
AOS
RMS
Water Pump/Thermostat
Serp Belt
Spark Plugs
Misc Coolant hoses
Coolant Reservoir
Oil/Filter
New CV axel bolts

I think this is all that I should address for now. Any others?

Once I get the car put back together and working fine, I will check:

Transmission fluid/filter
O2 sensors
A/C
Brakes
CV shafts
Lights

dan_189

That list looks good from my knowledge, only other things i'd recommend would be possibly AOS hoses as they run all over the place and are difficult to get to and they aren't expensive.

Also check the condition of the starter Y cable, actually wouldn't be a wasted investment to replace that regardless of what it looks like because its difficult to diagnose. Again can be done with engine in place but its not easy.

Not sure if i'd do the PS pump or alternator unless you knew they had problems, there is decent access to them with the engine in the car that you can tackle at a later date, that is unless you've already bought them. If you have would make sense just to install them.

TNT63Falcon

Funny you mention the hoses for the AOS. The PO had already purchased the AOS, hoses and water pump. All came with the car. I will replace the 2 hoses before the car goes back in.

The PSP looked like it was leaking from the front seal. I just pulled the pump and Alt off the "bad" engine. The Alt had some slippage when I spun the pully, and figured not to chance it. To your point, I went used, since they are fairly easy to get to, I had them, I have done it twice on these engines already.

dan_189

Nice,

Sounds like you're pretty sorted time to pull it all together!

TonyTwoBags

pics would really tie the thread together. GL going forward falcon-

dan_189

+996!

JohnCA58

IMO, I would still pull the flange off and remove the outer seal from the bearing.

TNT63Falcon