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So I changed my 99 cab's oil recently (mobile 1 - don't judge or comment please) and just cut open the filter for a look. Good news is there are no metalic bits in it, Bad news was that there a many brown/black? bits in it. I'm thinking chain guides. Car has 83K miles on it. Thoughts? On start up the car makes quite a rattle (always has).
Looks like chain pad material which is very common wear items for 3.4. You need to remove the cam covers to gain access to replace them.
What are the cam deviations? If it's rattling at start up, I would address them sooner rather than later before other damages (e.g., valves) are done.
Originally Posted by sjg1138
So I changed my 99 cab's oil recently (mobile 1 - don't judge or comment please) and just cut open the filter for a look. Good news is there are no metalic bits in it, Bad news was that there a many brown/black? bits in it. I'm thinking chain tensioners. Car has 83K miles on it. Thoughts? On start up the car makes quite a rattle (always has).
The interval was two years and 3.5K miles.
Can someone point me to a good thread describing the process of replacing the chain pads? Does it require dropping the engine? TIA
Yes, it will require dropping the engine and trans, and once it is out, you will need to remove the valve covers to change the rails. I would start reading the pelican How-To's. They are well written and it is what i referenced the most when I removed and disassembled the engine.
various levels of work to replace the various components; tensioners can be done with engine in the car, variocam pads can be done by pulling cam covers, ims pads require complete disassembly. the actual replacement items are not that expensive (lne make a billet replacement for one of them); all the cost is in the labour, and I would suggest to really vet your shop before you let them too far into your engine.
the variocam pads have been updated by porshe to a harder material, are not *that* much work to get at (well, I was quoted 12 hours) and are probably the cause of your deviation bumping into the +/-6 limits."
Had the same issue and this is what my worn pads looked like after 100k miles. Ended up dropping the motor and splitting the case in half and removed the side with Cylinders 4-6 to get to the IMS chain paddle. $60 worth of plastic parts to fix the particles issue and about $800 worth on seals, O-rings, Cylinder head bolts Etc.. Oh and new lifters (INA ones) which I replaced since I was already inside the motor and had 4 cushiony ones.
Chewed up IMS chain paddle pad and VarioCam tensioner pads
.
New Pads Vs Old pads.
Collateral damage on Cylinder 1-3 Chain rail guard (tensioner side).
I take it that the IMS tensioner paddle is black material and the other paddles are brown material.
The particles in question do seem to be on the black side (IMS) to me as well.
Unfortunately I don't have access to a facility where I could do this work myself so I guess I'll be looking for a good shop in the SF Bay Area to do the work.
Per Device2, it seems to make sense to do an engine "refresh" at the same time.
Could someone tell me, how many hours are required to split the case and replace these paddles, guides, and tensioners? Other than gaskets, can I get away without spending a load on parts?
My engine had a small amount of black plastic debris in the filter and I am wondering if I should split the engine right away, if it can wait, if so, how long? Should I just keep an eye on an increase in debris, or should I get on this ASAP?
My engine runs flawlessly, has no strange noises (after I replaced the rattling IMS bearing), but this plastic debris is in the back of my mind.
you replaced a rattling IMS? That's not good for the overall health of your motor. debris is in there now and slowly eating away at your motor...
it took me a couple of hours to strip the motor down to the bearing case. I figure if I had a second set of hands to help, i could remove the engine from the car and disassemble it in about 12 hours.
Could someone tell me, how many hours are required to split the case and replace these paddles, guides, and tensioners? Other than gaskets, can I get away without spending a load on parts?
My engine had a small amount of black plastic debris in the filter and I am wondering if I should split the engine right away, if it can wait, if so, how long? Should I just keep an eye on an increase in debris, or should I get on this ASAP?
My engine runs flawlessly, has no strange noises (after I replaced the rattling IMS bearing), but this plastic debris is in the back of my mind.
you replaced a rattling IMS? That's not good for the overall health of your motor. debris is in there now and slowly eating away at your motor...
it took me a couple of hours to strip the motor down to the bearing case. I figure if I had a second set of hands to help, i could remove the engine from the car and disassemble it in about 12 hours.
Here we go..
What product was used for the IMS Retrofit?
08-13-2016, 09:21 PM
Oil Filter with particles in it
