pulley=engine damage?
04-20-2005, 01:24 PM
#1
Registered User
Thread Starter
Join Date: Apr 2003
Location: FL
Posts: 70
Likes: 0
Received 0 Likes
on
0 Posts
pulley=engine damage?
I was checking to see if AEM made UR pulleys for the 350z. I did find that AEM doesn't make crank pulleys and this is the reason they gave.
Quote
"Virtually all of the cars we make Tru-Power pulleys for come equipped with a vibration dampener mounted to the crank from the factory. Aftermarket crank pulleys require the removal of these dampeners, which are required for engine life. Their removal can cause damage to your engine over time. If the manufacturers could save on vehicle costs by eliminating this device they would have done so."
Do our cars have a vibration damper and will installing a crank pulley hurt our engine?
Quote
"Virtually all of the cars we make Tru-Power pulleys for come equipped with a vibration dampener mounted to the crank from the factory. Aftermarket crank pulleys require the removal of these dampeners, which are required for engine life. Their removal can cause damage to your engine over time. If the manufacturers could save on vehicle costs by eliminating this device they would have done so."
Do our cars have a vibration damper and will installing a crank pulley hurt our engine?
04-20-2005, 01:31 PM
#3
Registered User
iTrader: (9)
Join Date: Nov 2002
Location: Marietta, GA
Posts: 133
Likes: 0
Received 0 Likes
on
0 Posts
Oh no...
Please do a search for 'crank pulley' or something similar. There are plenty of very informative posts dealing with this very topic - as in, it's been discussed to death.
That said, I had an UR crank pulley on my '94 Z32 for over 80k miles with no problems at all...loved the boost in torque down low. I'll be installing one soon enough on my 350Z.
Please do a search for 'crank pulley' or something similar. There are plenty of very informative posts dealing with this very topic - as in, it's been discussed to death.
That said, I had an UR crank pulley on my '94 Z32 for over 80k miles with no problems at all...loved the boost in torque down low. I'll be installing one soon enough on my 350Z.
Last edited by dgz32; 04-20-2005 at 01:34 PM.
04-20-2005, 01:52 PM
#7
Registered User
iTrader: (1)
Join Date: Sep 2003
Location: Montreal, Canada
Posts: 1,035
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by yobri
And the guy is an engineer, lord have mercy.
Trending Topics
04-20-2005, 04:13 PM
#9
https://my350z.com/forum/search.php?forumid=50
search
I have the crank pulley on my car - I'm sure it isn't *good* for the engine, but I don't think it's gonna seriously hurt it - anytime soon anyway. I don't plan on my engine lasting 200k anyway....
search
I have the crank pulley on my car - I'm sure it isn't *good* for the engine, but I don't think it's gonna seriously hurt it - anytime soon anyway. I don't plan on my engine lasting 200k anyway....
04-20-2005, 06:38 PM
#10
Registered User
iTrader: (5)
Join Date: Apr 2004
Location: Michigan
Posts: 454
Likes: 0
Received 0 Likes
on
0 Posts
a well designed pulley wont do damage. Many other cars besides the Z with 100k + on them with aftermarket pulleys that repalced stock ones similar to the one on the z have shown no abnormal wear.
04-21-2005, 04:23 PM
#12
Originally Posted by joust75
Mods please burn/bury/destroy/kill/cauterize this thread. This issue has been covered way too many times!
1) Why Nissan uses a damper in the first place.
2) Why it won't hurt the VQ to run without a damper.
04-21-2005, 04:48 PM
#13
New Member
Join Date: May 2002
Location: Atlanta
Posts: 1,026
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by DavesZ#3
I'm afraid it will never die until a knowledgable, competent Nissan (or other manufacturer's) engineer explains:
1) Why Nissan uses a damper in the first place.
2) Why it won't hurt the VQ to run without a damper.
1) Why Nissan uses a damper in the first place.
2) Why it won't hurt the VQ to run without a damper.
What if a "knowledgable, competent...engineer" explains 1) but argues the opposite of what you imply in 2)? Would that send us back to square one?
--
Jeff
04-21-2005, 05:30 PM
#14
Originally Posted by jeffw
What if a "knowledgable, competent...engineer" explains 1) but argues the opposite of what you imply in 2)? Would that send us back to square one?
--
Jeff
--
Jeff
Having someone prove it one way or the other would close the issue, not send it back to square one.
04-22-2005, 12:12 AM
#16
Registered User
iTrader: (1)
Join Date: Aug 2002
Location: Sesame Street
Posts: 5,096
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by DavesZ#3
I'm afraid it will never die until a knowledgable, competent Nissan (or other manufacturer's) engineer explains:
1) Why Nissan uses a damper in the first place.
2) Why it won't hurt the VQ to run without a damper.
1) Why Nissan uses a damper in the first place.
2) Why it won't hurt the VQ to run without a damper.
Because sometimes car companys do things that don't make sense. (I.E. Pontiac Aztek, The little flower vase on new VW bugs.)
Another dumb thing Nissan did was putting a plenum on the car that starves cylinders 5 and 6 for air. As a member who has a plenum spacer I am still scratching my head as to why nissan devised such an inefficient plenum. (I am sure, not so companies like Crawford Kinetix and AAM could make a killing selling aftermarket plenums!)
If you take the pulley and put it in your hand, you will see that the rubber insert does not separate two pieces of the pulley. Its just there.
Anyway the Z has been around for 3 years now. I have had my pulley for 2. I have yet to have a problem or hear of a problem on these boards.
So can we quit debating on this subject and quit wasting bandwidth? I mean shiat... They are now charging for memberships here. If we waste bandwidth on BS who knows whats next???
04-22-2005, 10:55 AM
#18
Registered User
iTrader: (2)
Join Date: Aug 2004
Location: Miami, Florida USA
Posts: 571
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by joust75
Answer:
If you take the pulley and put it in your hand, you will see that the rubber insert does not separate two pieces of the pulley. Its just there.
If you take the pulley and put it in your hand, you will see that the rubber insert does not separate two pieces of the pulley. Its just there.
But I can't find the article again, so I can't post it for discussion. Sorry..........
Thread
Thread Starter
Forum
Replies
Last Post
liqalu04
Engine & Drivetrain
31
01-02-2022 12:58 PM
