03-18-2012, 10:11 AM
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#1
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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VarioCam chain pads worn out? 
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03-18-2012, 06:26 PM
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#2
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Registered User
Join Date: Feb 2012
Location: 1000 Islands NY
Posts: 22
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Quote:
Originally Posted by BYprodriver
VarioCam chain pads worn out?
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Any way to find out short of a tear-down?
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03-19-2012, 03:28 AM
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#3
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,655
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Quote:
Originally Posted by UNYboater
Any way to find out short of a tear-down?
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Unless you have accumulated plastic shards in the oil sump, no. And even if you have got shards, you still don't know which pads/paddles need to come out until you look at them. Quite often on five chain motors the smaller paddles between the cams are the issue. But you still have to look.............
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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
Last edited by JFP in PA; 03-19-2012 at 03:31 AM.
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03-19-2012, 03:43 AM
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#4
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Registered User
Join Date: Feb 2011
Location: Algonquin, Misarikwack
Posts: 710
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Quote:
Originally Posted by JFP in PA
Unless you have accumulated plastic shards in the oil sump, no. And even if you have got shards, you still don't know which pads/paddles need to come out until you look at them. Quite often on five chain motors the smaller paddles between the cams are the issue. But you still have to look.............
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holy crap... and I bet you can't find out which chain is the culprit just by looking at them. This is not good news... I've had it. I'll sit and watch this thread for a bit
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03-19-2012, 03:50 PM
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#5
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,655
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Quote:
Originally Posted by madmods
holy crap... and I bet you can't find out which chain is the culprit just by looking at them. This is not good news... I've had it. I'll sit and watch this thread for a bit
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Actually, yes you can see which chain paddle wear pad is beat, often it is more than one. The plastic wear pads were meant to do just that: Absorb the wear rather than have metal to metal wear, which would have circulated through the engine and killed the bearings. You can see obvious wear on the pads posted above by ProDriver, the two on the left are toast.....
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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03-20-2012, 02:31 AM
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#6
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Registered User
Join Date: Dec 2011
Location: Long Island, NY
Posts: 518
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Subscribed and added to the to-do list. 
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*********************************
2012 Panamera 4
2010 Boxster
2000 Boxster S 3.2L
1990 Land Rover Defender 6x6
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03-27-2012, 06:50 PM
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#7
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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We have pulled apart and built numerous S engines over the last couple of years.. ALL OF THEM have worn out cam tensioner pads and crank to IMS pads. All of them. No exceptions. The new cam tensioner pads are made out of much better material, and we have pulled covers on multiple engines we built from several years ago and the new pads are not wearing anywhere near as fast as the OE pads that shipped with the engines.
When something comes in for a top end rebuild, we are going deep dive and pulling the rest of the engine apart and replacing all the plastic bullsh_t in these engines.. as SOP we are replacing the rod bolts/crank carrier bolts with ARP and measuring the drag on the crank in the carrier warmed up (we are looking for a certain inch/lb measurement)
Your engine will fail these parts, and it will cause a lot more damage if you don't do something about it now. The deviation *could* be something simple like out of adjustment, but I'm guessing its a combination of worn plastic bits.
B
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Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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03-19-2012, 03:21 PM
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#8
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Registered User
Join Date: Feb 2012
Location: 1000 Islands NY
Posts: 22
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Quote:
Originally Posted by JFP in PA
Unless you have accumulated plastic shards in the oil sump, no. And even if you have got shards, you still don't know which pads/paddles need to come out until you look at them. Quite often on five chain motors the smaller paddles between the cams are the issue. But you still have to look.............
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I changed the oil & filter this weekend, nothing in the filter except a small glump (technical term) of what looked & felt like white sealer. It was still pliable, maybe a little over 1/8" long & smaller wide. Oil was clean with nothing in the bottom of the catch basin. I guess it's time to pull out the Bentley to see what I'm in for.
Madmods, this will be a DIY project; I haven't found much that wasn't on this thing!
__________________
2001 Boxster 'S' .
1997 Boxster; my (former) DD, now resting in peace (or rusting in pieces!).
1998 BMW 323iC; my son's DD.....now.
1985 (early) 944; gone now, but not forgotten.
1974 Fiat X-1/9; my first mid-engine car.
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