We copied an aftermarket cam and had nissan install it and fked up our car
06-05-2010, 03:26 PM
#1
On The Tree
Thread Starter
iTrader: (5)
Join Date: Mar 2010
Location: Dallas, TX 75287
Posts: 153
Likes: 0
Received 0 Likes
on
0 Posts
We copied an aftermarket cam and had nissan install it and fked up our car Hey guys,
My friend has an aftermarket Cam Package in his 99' LS1 Camaro A4, and we installed the new pushrods, valve springs and the cam properly by ASE certified Techs here at our Nissan Dealership.
Anyway, After getting the car dyno tuned and driving it 100-200 miles, the engine started making noise like a rod-bearing going out. we removed the heads and found the LS1 oem lifters protrude and the lifters DESTROYED the camshaft.
What exactly happened? I have been reading that you HAVE to run LS7 lifters for this cam as the roller protrudes .050'' more than the ls1 lifters so that this doesnt happen. Is this true?
My friend has an aftermarket Cam Package in his 99' LS1 Camaro A4, and we installed the new pushrods, valve springs and the cam properly by ASE certified Techs here at our Nissan Dealership.
Anyway, After getting the car dyno tuned and driving it 100-200 miles, the engine started making noise like a rod-bearing going out. we removed the heads and found the LS1 oem lifters protrude and the lifters DESTROYED the camshaft.
What exactly happened? I have been reading that you HAVE to run LS7 lifters for this cam as the roller protrudes .050'' more than the ls1 lifters so that this doesnt happen. Is this true?
Last edited by 1SIKZ31; 06-06-2010 at 02:05 PM.
06-05-2010, 04:29 PM
#3
installed the new pushrods, valve springs and the cam properly by ASE certified Techs here at our Nissan Dealership.
What length pushrod was used?
Was preload checked?
What TQ spec was used?
Too many variables to blame it on the lifters just yet.
06-05-2010, 04:49 PM
#4
Teching In
Join Date: Dec 2009
Location: Chicago,Il
Posts: 23
Likes: 0
Received 0 Likes
on
0 Posts
You sure the cam was installed properly?
Most Nissan dealer tech's probably don't work on many motors that have pushrods in them....Aren't all nisssan's OHC?
Pushrod length and lifter preload are vital for a aftermarklet camshaft.
Did they actually measure and determine correct pushrod length or just guess or go by what was suggested?
Most Nissan dealer tech's probably don't work on many motors that have pushrods in them....Aren't all nisssan's OHC?
Pushrod length and lifter preload are vital for a aftermarklet camshaft.
Did they actually measure and determine correct pushrod length or just guess or go by what was suggested?
06-05-2010, 04:54 PM
#5
TECH Fanatic
iTrader: (1)
Join Date: Nov 2007
Location: NJ
Posts: 1,193
Likes: 0
Received 0 Likes
on
0 Posts
Just a small note, being ASE certified means absolutely nothing. I know ASE certified mechanics who couldn't distinguish their *** from another hole in the ground when it came to performance work. It's a different type of trade.
What length pushrod was used?
Was preload checked?
What TQ spec was used?
Too many variables to blame it on the lifters just yet.
What length pushrod was used?
Was preload checked?
What TQ spec was used?
Too many variables to blame it on the lifters just yet.
How do all the cam lobes look ?
06-05-2010, 05:48 PM
#6
If the same lifters were used on the new cam, I would pull the cam and get the hardness on it checked. There may have been installation issues as well. Also, looks like the parts are pretty well mixed up, did you use an organizer when you swapped parts to keep things in proper position?
Trending Topics
06-05-2010, 07:38 PM
#9
You took it to a Nissan dealership and had their mechanics work on it!?!
I would bet money that was what caused the damage.. Not any kind of failure with parts due to age or wear. No way in HELL some mechanic at a dealership or regular mechanic would touch my car. ONLY mechanics that special in that kind of thing, such as shops like TSP and what not.
, what was the PR length?
06-05-2010, 11:59 PM
#14
1st Mistake: WHY on Gods green earth would you take a GM product to a Nissan dealership.
2nd Mistake: As stated before unless you have any experience working on HP engines you can have a king dingaling certification and fly a rocket to the moon but that doesn't do **** for ya does it.
3rd Mistake: How much research did you do on your own before taking it to Nissan. Other than they are 4 stroke engines they are 2 way different operating engines and I would NEVER let any nissan mechanic even change the oil on my engine.
I think that your project was doomed from day one. I hope you saved some money because if you didn't and over paid and didn't get a "deal" I think at this point I am going to hold the rest of whats on my mind. Good luck
2nd Mistake: As stated before unless you have any experience working on HP engines you can have a king dingaling certification and fly a rocket to the moon but that doesn't do **** for ya does it.
3rd Mistake: How much research did you do on your own before taking it to Nissan. Other than they are 4 stroke engines they are 2 way different operating engines and I would NEVER let any nissan mechanic even change the oil on my engine.
I think that your project was doomed from day one. I hope you saved some money because if you didn't and over paid and didn't get a "deal" I think at this point I am going to hold the rest of whats on my mind. Good luck
06-06-2010, 12:43 AM
#16
1st Mistake: WHY on Gods green earth would you take a GM product to a Nissan dealership.
2nd Mistake: As stated before unless you have any experience working on HP engines you can have a king dingaling certification and fly a rocket to the moon but that doesn't do **** for ya does it.
3rd Mistake: How much research did you do on your own before taking it to Nissan. Other than they are 4 stroke engines they are 2 way different operating engines and I would NEVER let any nissan mechanic even change the oil on my engine.
I think that your project was doomed from day one. I hope you saved some money because if you didn't and over paid and didn't get a "deal" I think at this point I am going to hold the rest of whats on my mind. Good luck
2nd Mistake: As stated before unless you have any experience working on HP engines you can have a king dingaling certification and fly a rocket to the moon but that doesn't do **** for ya does it.
3rd Mistake: How much research did you do on your own before taking it to Nissan. Other than they are 4 stroke engines they are 2 way different operating engines and I would NEVER let any nissan mechanic even change the oil on my engine.
I think that your project was doomed from day one. I hope you saved some money because if you didn't and over paid and didn't get a "deal" I think at this point I am going to hold the rest of whats on my mind. Good luck
Worth a shot though.
06-06-2010, 02:00 AM
#17
Jumping to the conclusion that the Nissan dealership is at fault is bullshit. It's an easy out that you can jump on. It may or not be their fault. But like most threads on here people jump to a conclusion without all the facts.
I also want to know why you felt it was needed to put Texas Speed Cam Kit instead of just a cam failure?
I also want to know why you felt it was needed to put Texas Speed Cam Kit instead of just a cam failure?
06-06-2010, 02:03 AM
#18
Jumping to the conclusion that the Nissan dealership is at fault is bullshit. It's an easy out that you can jump on. It may or not be their fault. But like most threads on here people jump to a conclusion without all the facts.
I also want to know why you felt it was needed to put Texas Speed Cam Kit instead of just a cam failure?
I also want to know why you felt it was needed to put Texas Speed Cam Kit instead of just a cam failure?
06-06-2010, 02:10 AM
#19
Why would that NOT be the first assumption? It being a Nissan dealership is not what fist sent a flag up to me. The first flag was it was a dealership, period. If it were me it would have at least went to a GM dealer instead of a Nissan. Hell, at least they are still mostly dealing with pushrods.
Like I said it could or could not be the reason. Don't just assume something with not knowing all the facts. That is unless you aren't smart enough to make your own opinion.
Look at how many threads there are about getting bad tune and being a mechanical issue.
Just think that's all I am asking.
06-06-2010, 02:18 AM
#20
Because you don't know a god damn thing about the mechanic doing the work.
Like I said it could or could not be the reason. Don't just assume something with not knowing all the facts. That is unless you aren't smart enough to make your own opinion.
Look at how many threads there are about getting bad tune and being a mechanical issue.
Just think that's all I am asking.
Like I said it could or could not be the reason. Don't just assume something with not knowing all the facts. That is unless you aren't smart enough to make your own opinion.
Look at how many threads there are about getting bad tune and being a mechanical issue.
Just think that's all I am asking.
Me "not knowing a god damn thing about the mechanic" is the EXACT reason why I think it was something he did wrong.
Could it be a mechanical failure, sure. But that is not what I would put my money on. It was my opinion on what caused this, just like you have your opinion. Calm down, sounds like you are the mechanic and taking personal offense to this, that or drive a Nissan.
