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YOUR RESEARCHVery specific IMS question
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Use hammer and punch
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Suggestion
The other seems questionable because it involves using a hammer and punch to install and uses a roller bearing.
Leading evidence: 'Use hammer and punch' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use hammer and punch' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
The other seems questionable because it involves using a hammer and punch to install and uses a roller bearing.
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Hi,
I'm doing the IMS bearing on a good 2004 engine, when I removed the bearing I found metal shavings between the back of the bearing and the shaft. Picture 1.
The inside seal of the bearing is in good shape but the outside seal has missing portions, this was supposed to be an upgraded IMS but its obviousy not the case unless there was an intentional surgical trimming of the outside seal to let oil in, very lame. Picture 2.
Looking into the hollow shaft I see more metal shaving attached to what looks like a bolt end treaded into the shaft. Picture 3.
I assume the metal shavings are from the drilling of the shaft ???, is that bolt end on picture 3 normal? any comments on the possible outer seal modification?
Thanks,
F.
Shine a light down the shaft to see if there is a hole at the other end. Some folks make a hole in the oil pump end to bring oil to the bearing. If that is the case one would think the inner seal would have been modified, not the outer. Pull the seal what do the cage/*****/ races look like?
No idea about the abi-normal "screw" through the shaft??
The drive sprocket has been pinned. And the sloppy machinist did not clean out the swarf. Probably the IMSB was on the shaft when he did the pinning? Unlikely that larger pieces of swarf got into the IMSB. But why take a chance? A new, top quality bearing is inexpensive. Just do your homework and may a well-informed choice. It may be wise to remove the outer seal anyway -depending which bearing you choose.
It is not as common as it should be IMHO.The cost is trivial IF you have the engine apart. I did mine.
DOF is a little controversial here. But there are some interesting videos and discussions:
http://www.pedrosgarage.com/Site_2/TechnoFix_DOF.html
Just make sure you select the correct bearing. Ask here if in doubt.
what's controversial about DOF, what is the drawback of DOF?
I'm a bit new to 996, I have been deep into 1972 911E but that was too much maintenance/restoration and an undrivable rust bucket.
I really am looking for your input on the IMS options, this is a sunny summer car with low-moderate usage. I drive it hard but not as frequently as I would like
Thanks,
F
BTW, I did research the web with Google so I did come across that site and many others. Still would like peoples opinion on the options and the pictures above.
Pedro's D.O.F. is a new-ish product compared to other "Solutions". So ,it has not (yet) got the field service record that the LN products have. In fairness, there have been no reports of D.O.F. failures that I am aware of. But equally, there are no high miles/years records either.
There are 2 versions of D.O.F.
One has a separate oil line to 'feed' the IMSB.Pedro has a video on this system.
The other seems questionable because it involves using a hammer and punch to install and uses a roller bearing. I hope I am not blatantly exposing my bias ?
Both systems have been rigorously debated.
This is a source reference. Confirm exact model applicability in the original material.
