Dropped engine sump today

[Steve Tinker]

So what's the consensus of the quantity / size / composition of the plastic debris?
Is this normal for a 85,000 mile engine fitted with the early design chain tensioner ramps, because looking closely at the chips they are about the size of a matchhead or less?

[recycledsixtie]

Originally Posted by Steve Tinker

So what's the consensus of the quantity / size / composition of the plastic debris?
Is this normal for a 85,000 mile engine fitted with the early design chain tensioner ramps, because looking closely at the chips they are about the size of a matchhead or less?

I am just about to send you a PM.
Guy

[911monty]

Steve Tinker;
You are spot on with what I am interested in. These particles are much smaller than they appear in the pictures with the oil film on them. After I removed them and let dry on a paper towel for inspection they are approximately the size of a grain of salt. I do not know if this is the first time the sump was removed, no records were included in the purchase, so I am trying to establish a baseline to work from. This engine does have a start up rattle of about 1 second then about 6 lifter clicks before runs smooth and quiet, similar to some of my previous air cooled engines. This is the driver of switching to Castrol from Mobil 1. I know the 0W of the M1 should flow faster on cold start up but, I am thinking the better film strength of the Castrol may help prevent the tensioners relaxing . I suppose next step will be to check for cam deviation and possibly change the tensioners and or paddles.
KK2002S: I am using Locktite 518 and I will be putting on the pan.
Thanks guys and keep the replies coming.

[Gelbster]

The chain ramp plastic debris problem is greater than the small size of the particles ?
If you've had an M96 apart ,you'll have seen how tiny and clog-prone some oilways are. One example- the oil squirters aimed at the underside of the pistons. One plastic particle would pass through that oilway under pressure. But if the particles accumulate and/or adhere with other contaminants/debris it could be the beginning of a lubrication related failure.
The best remedy is obvious - replace the offending ramps promptly and carefully monitor for debris in future.Better, replace them proacively before 70 k miles? But the time, the cost, you'll be without your car, it might not be a problem - yes all those excuses and more.
But what about the debris distributed elsewhere in the engine? In a conventional engine you could flush with a high detergent oil a few times. I doubt the experts would recommend that in the M96 ?

[911monty]

Originally Posted by Gelbster

The chain ramp plastic debris problem is greater than the small size of the particles ?
If you've had an M96 apart ,you'll have seen how tiny and clog-prone some oilways are. One example- the oil squirters aimed at the underside of the pistons. One plastic particle would pass through that oilway under pressure. But if the particles accumulate and/or adhere with other contaminants/debris it could be the beginning of a lubrication related failure.
The best remedy is obvious - replace the offending ramps promptly and carefully monitor for debris in future.Better, replace them proacively before 70 k miles? But the time, the cost, you'll be without your car, it might not be a problem - yes all those excuses and more.
But what about the debris distributed elsewhere in the engine? In a conventional engine you could flush with a high detergent oil a few times. I doubt the experts would recommend that in the M96 ?

I will have more info on chain ramp condition once I open up the filter today. Since I have the LN adapter I should see 100% of the circulating debris. The car is not a daily driver, unless the weather is nice! I also enjoy the mechanical pursuit. However if I go so far as ramps and tensioners then I might just change the IMS and clutch ? As far as engine flush is concerned, and I am probably wrong, but I believe according to what Jake has written, the lifters are at the end of the oil galleries and would likely fill with the debris being flushed? This is only my interpretation to what I think I read. My apologies to Jake if I am incorrect.

[911monty]

Okay, so I cut open the oil filter, there were 2 more pieces of chain ramp in there. That's a lot better than I was expecting! However while down there I pulled the engine serial number 2065X24614, Is this a reman engine???

[Reebuck1]

Pull your valve covers and look at your ramps to be sure !

[jsceash]

You Have M96.20 1999 2.5 engine #24,614 0f 60,000