piggyback pulley q - IMPORTANT!

jj_jonathon · 06-03-2003, 11:43 AM

what happens if the shop that installed the crank pulley (needed an airgun) didnt connect the old one to the new one (piggyback them) and just the new u/d crank pulley is running on there? doesnt the old pulley serve as a dampner? prolly be good to get an answer sooner rather than later, cuz if this is bad, itll need fixing.....

thanks
-jonathon

jj_jonathon · 06-03-2003, 02:52 PM

no one can tell me what damage is done if i dont have the stock crank pulley and the new u/d crank pulley piggybacking?

Dark_5.0 · 06-03-2003, 03:27 PM

I dont know for sure but I wouldnt think it would cause any damage.

surfbeast · 06-03-2003, 04:57 PM

It serves as a dampener and may cause damage if left off. Call the manufacturer to see for sure. It may depend on the manufacturer. Steedas has a built in dampener and most piggy back pullies do not.

Badass_yellowGT · 06-03-2003, 10:32 PM

put the damper on now you will wear the crank bearings badly at higher rpm the stock assebly is balanced and this is part of it

skz4u · 06-05-2003, 01:19 PM

J.J. Listen to Badass, without that damper on you will experiance severe engine damage. Your damper absorbs internal vibrations cuased by harmonics inside the crankcase. The engine is balanced at the factory with the balancer installed. The pulley that you have on there now has absolutely no dampening properties. Make sure they put that thing back on. Good Luck!

jj_jonathon · 06-05-2003, 01:45 PM

i figured as much! i appreciate the extra info on higher rpms...i had to take the car out a couple of times before they could fix it and kept it under 2k rpm the whole time...it didnt run bad at all, ran like it should....so im guessing thats a good sign..

the factory one is back on now with the u/d one...so its all better

...

once again, thanks!

06-03-2003, 11:43 AM	#1
jj_jonathon Trisket Join Date: May 2002 Location: University of Florida, FL Posts: ½ Posts: 1,560	piggyback pulley q - IMPORTANT! what happens if the shop that installed the crank pulley (needed an airgun) didnt connect the old one to the new one (piggyback them) and just the new u/d crank pulley is running on there? doesnt the old pulley serve as a dampner? prolly be good to get an answer sooner rather than later, cuz if this is bad, itll need fixing..... thanks -jonathon __________________ University of Florida - Physics Major My 02GT vert Media Center Pics BBK Underdrive Pulleys \| K&N FIPK (Gen II) \| Bullet Grille \| Mach 1 Chin Spoiler \| UPR Interior Parts \| XM Radio \| Audiobahn Subs Ricer Hater's Club Member #1/2 (30) http://www.ricehatersclub.com/ Last edited by jj_jonathon; 06-03-2003 at 11:53 AM..

06-03-2003, 02:52 PM	#2
jj_jonathon Trisket Join Date: May 2002 Location: University of Florida, FL Posts: ½ Posts: 1,560	no one can tell me what damage is done if i dont have the stock crank pulley and the new u/d crank pulley piggybacking? __________________ University of Florida - Physics Major My 02GT vert Media Center Pics BBK Underdrive Pulleys \| K&N FIPK (Gen II) \| Bullet Grille \| Mach 1 Chin Spoiler \| UPR Interior Parts \| XM Radio \| Audiobahn Subs Ricer Hater's Club Member #1/2 (30) http://www.ricehatersclub.com/

06-03-2003, 03:27 PM	#3
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	I dont know for sure but I wouldnt think it would cause any damage. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

06-03-2003, 04:57 PM	#4
surfbeast Registered Member Join Date: Feb 2002 Location: Maryville,TN Posts: 415	It serves as a dampener and may cause damage if left off. Call the manufacturer to see for sure. It may depend on the manufacturer. Steedas has a built in dampener and most piggy back pullies do not. __________________ 98 GT / convertable -98 Saleen engine, Saleen appearance pkg. SHM cams,P&P NPI heads, and so much more!

06-03-2003, 10:32 PM	#5
Badass_yellowGT Registered Member Join Date: Jun 2002 Location: Western,MA Posts: 254	put the damper on now you will wear the crank bearings badly at higher rpm the stock assebly is balanced and this is part of it __________________ Rice Haters Club Member #55 For My car Specs Click the Home page link http://www.badassyellowgt.50g.com/

06-05-2003, 01:19 PM	#6
skz4u Registered Member Join Date: Mar 2002 Posts: 38	J.J. Listen to Badass, without that damper on you will experiance severe engine damage. Your damper absorbs internal vibrations cuased by harmonics inside the crankcase. The engine is balanced at the factory with the balancer installed. The pulley that you have on there now has absolutely no dampening properties. Make sure they put that thing back on. Good Luck!

06-05-2003, 01:45 PM	#7
jj_jonathon Trisket Join Date: May 2002 Location: University of Florida, FL Posts: ½ Posts: 1,560	i figured as much! i appreciate the extra info on higher rpms...i had to take the car out a couple of times before they could fix it and kept it under 2k rpm the whole time...it didnt run bad at all, ran like it should....so im guessing thats a good sign.. the factory one is back on now with the u/d one...so its all better ... once again, thanks! __________________ University of Florida - Physics Major My 02GT vert Media Center Pics BBK Underdrive Pulleys \| K&N FIPK (Gen II) \| Bullet Grille \| Mach 1 Chin Spoiler \| UPR Interior Parts \| XM Radio \| Audiobahn Subs Ricer Hater's Club Member #1/2 (30) http://www.ricehatersclub.com/

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