Oil change gonna bad!
05-29-2012, 10:10 PM
#1
Registered User
Thread Starter
Join Date: Apr 2012
Location: southeast, MO
Posts: 29
Likes: 0
Received 0 Likes
on
0 Posts
Oil change gonna bad! Well I was changing my oil today and found several needles from the rocker bearings. Any suggestions? New rockers? Trunion upgrade? Help ASAP please
TSP cam
Duration is 231/237
Lift is .595/.598
Lobe separation is 112
TSP cam
Duration is 231/237
Lift is .595/.598
Lobe separation is 112
05-29-2012, 11:00 PM
#2
Looks like you will need to drop the pan to get them all out. The good news is the rockers should be ok, can upgrade to comp com trunnions.
This retro-fit is starting to become a mandatory upgrade to ls engines
This retro-fit is starting to become a mandatory upgrade to ls engines
05-29-2012, 11:56 PM
#4
TECH Resident
iTrader: (3)
Join Date: Mar 2008
Location: Joliet Illinois
Posts: 966
Likes: 0
Received 0 Likes
on
0 Posts
I just did the comp tri union upgrade. Have not put oit on the car yet Was pretty easy with a drill press. I am installing the si5 witch is very close to your cam. I am having a hard time with the valve locks.
05-30-2012, 01:10 AM
#7
Launching!
Join Date: Jun 2011
Location: Illinios
Posts: 222
Likes: 0
Received 0 Likes
on
0 Posts
Dont remember who on here posted it but you might want to give it a shot. Take a really powerful magnet and run it along the oil pan towards the drain hole, just to get any rollers that might still be in there.
Trending Topics
06-01-2012, 10:03 AM
#11
even if there are a few in the pan i wouldnt worry about it, they will come out in time and they arent going to make it into anything else. IMHO I would get a small magnet on a peice of wire that will fit in the drain plug and swing that around in there as that is what I have done before
06-01-2012, 09:58 PM
#13
TECH Fanatic
iTrader: (3)
Join Date: Feb 2004
Location: Livonia, Mi
Posts: 1,455
Likes: 0
Received 0 Likes
on
0 Posts
Hey, I apologize but they are boxed up and ready to go out. I can open them and take pictures if you really want, but they look just like every other modded rocker with comp trunions. I'm putting LS3 style heads on my car this weekend and I have some Yella Terra YT-6645's with about 4,000 miles on them that I would sell for $350 shipped, I still have the box and everything. They are on the car right now, but tomorrow morning they won't be and I can get them to UPS monday morning.
06-01-2012, 11:32 PM
#14
More than likely you'll be fine just slapping some new rockers on there and/or doing the trunion upgrade to yours.
Those needle bearings have probably been sitting in the oil pain a lot longer than you realized. It's just now becoming a factor to you since you pulled the drain plug and saw them. I wouldn't worry about tearing down the motor. Fish out as many as you can with a skinny (strong) magnet, put rockers on it, and roll out.
And just another FYI. If you're running that cam on stock heads with a 7.4" pushrod, you have the wrong length pushrod and now would be a great time to correct it.
Those needle bearings have probably been sitting in the oil pain a lot longer than you realized. It's just now becoming a factor to you since you pulled the drain plug and saw them. I wouldn't worry about tearing down the motor. Fish out as many as you can with a skinny (strong) magnet, put rockers on it, and roll out.
And just another FYI. If you're running that cam on stock heads with a 7.4" pushrod, you have the wrong length pushrod and now would be a great time to correct it.
06-02-2012, 07:52 AM
#16
To answer your question, the base circle of most .590+ lift camshafts are going to be shrunk down ~.030-.060 at the base. This is obviously done to allow larger lobes to pass through the cam bearings. A by-product of shrinking the base circle down is the necessity for a longer pushrod to make back up the travel you lost. Almost all the low/high 230's camshafts with a .595+ lift is going to need a 7.450 pushrod on stock unmilled heads. Sometimes a 7.425, but usually a 7.450.
If you're running a 7.4" pushrod with a 230+ duration .590+ camshaft, you have the wrong pushrod length and are causing excessive wear to your valvetrain.
06-02-2012, 11:36 AM
#18
Registered User
Thread Starter
Join Date: Apr 2012
Location: southeast, MO
Posts: 29
Likes: 0
Received 0 Likes
on
0 Posts
ill take those rockers Mike94ZLT1 and i have ported 241 heads with comp cams hardened 7.4 pushrods
Last edited by 1qwk00ss; 06-02-2012 at 11:42 AM.
06-02-2012, 11:48 AM
#19
TECH Resident
iTrader: (3)
Join Date: Mar 2008
Location: Joliet Illinois
Posts: 966
Likes: 0
Received 0 Likes
on
0 Posts
The first thing that's wrong is the VENDOR who sells that camshaft telling people that a stock length PR will work with a camshaft that's ~.050 smaller @ the base circle.
To answer your question, the base circle of most .590+ lift camshafts are going to be shrunk down ~.030-.060 at the base. This is obviously done to allow larger lobes to pass through the cam bearings. A by-product of shrinking the base circle down is the necessity for a longer pushrod to make back up the travel you lost. Almost all the low/high 230's camshafts with a .595+ lift is going to need a 7.450 pushrod on stock unmilled heads. Sometimes a 7.425, but usually a 7.450.
If you're running a 7.4" pushrod with a 230+ duration .590+ camshaft, you have the wrong pushrod length and are causing excessive wear to your valvetrain.
To answer your question, the base circle of most .590+ lift camshafts are going to be shrunk down ~.030-.060 at the base. This is obviously done to allow larger lobes to pass through the cam bearings. A by-product of shrinking the base circle down is the necessity for a longer pushrod to make back up the travel you lost. Almost all the low/high 230's camshafts with a .595+ lift is going to need a 7.450 pushrod on stock unmilled heads. Sometimes a 7.425, but usually a 7.450.
If you're running a 7.4" pushrod with a 230+ duration .590+ camshaft, you have the wrong pushrod length and are causing excessive wear to your valvetrain.
Sorry for slight hijack op
06-02-2012, 11:53 AM
#20
Registered User
Thread Starter
Join Date: Apr 2012
Location: southeast, MO
Posts: 29
Likes: 0
Received 0 Likes
on
0 Posts
