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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHHas anyone had their IMS gears welded?
Leading reported evidence
Replace shaft
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Suggestion
You did replace the shaft after the failure, right?
Leading evidence: 'Replace shaft' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace shaft' (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 · Original poster
I've also seen some people using a set screw, but there seem to be mixed views on this one.
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Hi guys,
I'm just in the process of putting back together a 99 M96 engine post IMS bearing failure. I got the engine ultrasonic cleaned and purchased a replacement IMS shaft.
Now, should I have the replacement IMS shaft welded? I can't find much info on this online. How is this done properly? Does the shaft need to be balanced after? Can I just do this at any good welding shop (I'm in the Bay Area).
I've also seen some people using a set screw, but there seem to be mixed views on this one.
My IMS spun the gears, wrecking the entire valve train, breaking in half one camshaft, and other assorted injuries. I bought a replacement ims and sent it to LNE to be pinned. Works great, at minimal cost. As I understand, welding isn't recommended.
Welding and pinning are standard practice here.
You did replace the shaft after the failure, right?
The IMS is actually a 4 piece component, with two of those pieces having sub- pieces. The shaft is not held together in any fashion other than a light press fit.
Yup, I got a new shaft. So do I pin all gears? From what I've seen online, people only pin one gear and it's not consistent. Some pin the bigger outer gear and some do the small gear.
