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YOUR RESEARCHLooking...U/D pulley recommendations - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Suggestion · Original poster
And according to my independent, we don't rebuilt these lumps, we just replace :-(
Looking...U/D pulley recommendations - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Replace (' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace (' (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
Even if you are of the "not worth rebuilding" camp, some of us still need to lock the engine in order to time camshafts, change chain tensioners, remove the valve covers for any reason, etc.
Looking...U/D pulley recommendations - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use .html
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Looking...U/D pulley recommendations - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use locking the engine at tdc
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Suggestion
If so, is this the boss used for locking the engine at TDC and for use when rebuilding the engine?
Looking...U/D pulley recommendations - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use rss pulley, i got it
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Suggestion
I used the RSS pulley, I got it from someone on here that never installed it, but I probably would have gone with it anyway because of the counterholding tool and the holes in the pulley for holding it.
Looking...U/D pulley recommendations - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace chain tensioners, remove the valve covers
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Suggestion
Even if you are of the "not worth rebuilding" camp, some of us still need to lock the engine in order to time camshafts, change chain tensioners, remove the valve covers for any reason, etc.
Looking...U/D pulley recommendations - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use rss pulley, i got it
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Suggestion
I used the RSS pulley, I got it from someone on here that never installed it, but I probably would have gone with it anyway because of the counterholding tool and the holes in the pulley for holding it.
Looking...U/D pulley recommendations - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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I have not found anyone ship a UPD for less then this one at Pelican.
Pelican Parts - European Automotive Parts and Accessories - Porsche • BMW • Mercedes • Volkswagen • Audi • Saab • Volvo • MINI
There is also a good tutorial in the DIY section here:
http://986forum.com/forums/diy-project-guides/23057-underdrive-pulley-install-guide.html
I used the RSS pulley, I got it from someone on here that never installed it, but I probably would have gone with it anyway because of the counterholding tool and the holes in the pulley for holding it.
For cutting the boss (which was the hardest part, but for you it will be much easier with the engine out) I taped all around it with blue painter's tape, especially covering the crank pulley area, to keep any shavings out.
The RSS doesn't come with a new crank bolt, so I bought a new one and a new washer. If I had to do it again I would just get the bolt; the washer was very expensive.
I could feel a small difference and I haven't had any trouble with AC or the battery charging.
Steve
Hold the phone. Installing a UDP requires grinding off a boss from the crankcase? If so, is this the boss used for locking the engine at TDC and for use when rebuilding the engine?
If so it's "oh hell no" for me.
Yes, I am.
Even if you are of the "not worth rebuilding" camp, some of us still need to lock the engine in order to time camshafts, change chain tensioners, remove the valve covers for any reason, etc.
That is correct, that boss is used as one method for locking the engine at TDC (although I can't name another off the top of my head). There is still enough left of the hole to lock the engine at TDC again if the original pulley was reinstalled, but when the UDP is on, that boss is blocked by the edge of the pulley and can't be used.
This is a source reference. Confirm exact model applicability in the original material.
