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10-10-2017
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#1 |
 Join Date: Aug 2006
Location: McLean, VA
Posts: 3,723
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New Dual Mass flywheel
Since my last engine rebuild/install, I have been chasing ratty, rattling noise coming from drivetrain at idle. At first, I suspected faulty injector/injects and replaced all injectors this spring from rebuilt FIC injectors to Accel injectors which failed to correct the situation.
Last resort was new DM flywheel. Finding a NOS DM was not easy. However, as I was looking, DRM500RUBYZR-1 had one for sale on the other forum at a great price! Contacted Marty, Tom (Roadster) volunteered to pick it up and deliver to Westminster, etc, etc... Last Saturday, I finally got around to installing it at Jim's in Westminster - a WAZOO event. More correctly, Glen, Jim and Al did all the hard work and I helped.  While at it, cleaned dirt and grease build up under the car, replaced back up light switch, installed a new pressure plate, TO bearing, pilot bearing, resealed the tail shaft seal, patched up damaged heat/sound insulation, etc... Had to use lightly used clutch offered by Jim since I forgot that I had used a new clutch that came with the kit before and managed to drop the clutch/pressure plate while removing from the car damaging both. Wow! What a difference a good DM flywheel makes! Idle is butter smooth with no ratty, chattering noise at idle and the LT5 sounds and feels buttery smooth as she revs up. I had a bit of thumping at idle and chalked it up to higher lift intake cams I had installed. Now, I suspect old, worn out DM was the culprit. A great, big thanks to WAZOO and Marty! Glen taking charge of disassembly and reinstall:  I hope this Flickr image posting works... Last edited by secondchance; 10-10-2017 at 03:28 PM. |
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10-10-2017
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#2 |
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Join Date: Aug 2006
Location: McLean, VA
Posts: 3,723
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Re: New Dual Mass flywheel
New to Flickr and figure out why the image appears so small...
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10-10-2017
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#3 |
 
Join Date: Apr 2017
Location: Wayne Illinois
Posts: 402
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Re: New Dual Mass flywheel
How many hours did it take to make the switch with that many guys helping?
Dan
__________________
 91-#1935 Black/black & gray, Haibeck 500 Cams by Pete |
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10-11-2017
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#4 |
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Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: New Dual Mass flywheel
Congratulations! I also switched back from Fidanza to OEM Dual Mass FW after transmission overhaul by ZFDoc. Absolutely couldn't be happier. Having driven my car with the Fidanza and now with the Dual Mass, I don't "feel" any difference in acceleration. I've got Dyno data with Fidanza setup, so might get on the rollers again to see what difference is actually there. It's minimal if anything.
Sent from my XT1585 using ZR-1 Net Registry mobile app |
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10-11-2017
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#5 |
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Join Date: Aug 2006
Location: McLean, VA
Posts: 3,723
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Re: New Dual Mass flywheel
Actual work typically takes about 5 hours. I spend a bit of extra time cleaning stuff while the car is on the lift. We had one to two people actually working on the car taking turns. Overall, it took about 7 hours.
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10-11-2017
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#6 | |
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Join Date: Aug 2006
Location: McLean, VA
Posts: 3,723
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Re: New Dual Mass flywheel
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10-11-2017
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#7 |
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: New Dual Mass flywheel
Ah, dual-mass FW? Did you say DUAL-MASS FW???
WEEEE DOAN NEED NO STEENKING DUAL-MASS FLYWHEELZ!! I'll take the snappy response (especially in 1st n 2nd gears!!) over a little noise in neutral (only)!
__________________
Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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10-11-2017
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#8 | |
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Join Date: Aug 2006
Location: McLean, VA
Posts: 3,723
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Re: New Dual Mass flywheel
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