keep wearing out my T&D rockers
#2374597
09/21/17 04:26 PM
09/21/17 04:26 PM
|
Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
|
OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
|
Like the title says, I keep wearing them out. I get maybe 4000 miles out of them. all on the street. Indy sr heads. solid roller .650" 272 276@.050. I use pac 1225 springs. these are also 1.6 rocker arms.
I do restrict the oil to the heads. I use a .040" one on each head. Wondering if I should just remove them, and not use any at all.
The wear is not the shaft or the bearings. I think it is the aluminum bore of the rocker itself. They hold lash really well, but I can grab the rocker and twist it and get a lot of play. needles to say, they are loud and clacky. I use VR 1 20/50 for oil.
I just ordered a new set. Was thinking if a 1.5 might hold up a little better on the street. thoughts???
68 cuda formula S 588" bb 5sp 70 CUDA CONVERT 500" 5SP (SUBLIME) 70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2374600
09/21/17 04:29 PM
09/21/17 04:29 PM
|
Joined: Jan 2003
Posts: 8,021 Tulsa OK
Bad340fish
master
|
master
Joined: Jan 2003
Posts: 8,021
Tulsa OK
|
If its an option moving over to Hardlan Sharp may not be a bad idea. Lifetime warranty and free inspections.
68 Barracuda Formula S 340
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2374605
09/21/17 04:40 PM
09/21/17 04:40 PM
|
Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Shaft or individuals edit cam is very close to what you have..never wore out a rocker yet... I think you are side loading them or they are twisting
Last edited by MR_P_BODY; 09/21/17 04:50 PM.
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2374614
09/21/17 05:02 PM
09/21/17 05:02 PM
|
Joined: Jan 2003
Posts: 14,492 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
|
Have you talked with T&D about those spring loads and long term street duty?
IMO, it's way more spring than I'd run on a motor that sees primarily(or only) street use.
Smoother cam lobes, less spring pressure...... Things just last longer.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: keep wearing out my T&D rockers
[Re: Racer33]
#2374615
09/21/17 05:03 PM
09/21/17 05:03 PM
|
Joined: Jan 2003
Posts: 10,020 MN
JERICOGTX
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 10,020
MN
|
Are the heads oiled full time or only when the cam holes line up? With restrictors I would think you want full time oiling. SR heads are full time oiling.
69 GTX
68 Road Runner
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2374673
09/21/17 06:39 PM
09/21/17 06:39 PM
|
Joined: Apr 2005
Posts: 1,505 TN
SCATPACK 1
pro stock
|
pro stock
Joined: Apr 2005
Posts: 1,505
TN
|
IF you are running on the street, i fail to see why you would restrict the oil to the rockers. MORE is better. I know others will say to restrict it. BUT if you have enough for the mains and rods, then keep the heads well oiled. I found my springs lived a lot longer too. Just my 2 Cents worth from another old school racer.
Old Geezer Racing
|
|
|
Re: keep wearing out my T&D rockers
[Re: MR_P_BODY]
#2374688
09/21/17 07:08 PM
09/21/17 07:08 PM
|
Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
|
OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
|
Shaft or individuals edit cam is very close to what you have..never wore out a rocker yet... I think you are side loading them or they are twisting I don't see how I could be side loading them. It's a zero offset exhaust rocker. And the intake is only .250 offset.
68 cuda formula S 588" bb 5sp 70 CUDA CONVERT 500" 5SP (SUBLIME) 70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
|
|
|
Re: keep wearing out my T&D rockers
[Re: WedgeFED]
#2374689
09/21/17 07:11 PM
09/21/17 07:11 PM
|
Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
|
OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
|
T&D will rebuild the set of rockers for 100$ last time I talked to them. Very good customer service for sure, call them... I talked with Shelton over at T&D. They can rebuild them only if the rocker body bores are not wore out. He thinks that's what's wrong with mine so there are no rebuilding them.
68 cuda formula S 588" bb 5sp 70 CUDA CONVERT 500" 5SP (SUBLIME) 70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2374697
09/21/17 07:23 PM
09/21/17 07:23 PM
|
Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
|
OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
|
On one of my Motors I use the jesel paired rocker arms. I use more spring and .800 inch lift, streetcar also. I bet I've had the same rockers since the late 90s. And those are only spray bar oiled...😕
68 cuda formula S 588" bb 5sp 70 CUDA CONVERT 500" 5SP (SUBLIME) 70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2374707
09/21/17 08:11 PM
09/21/17 08:11 PM
|
Joined: Jan 2003
Posts: 11,707 Portage,michigan
B3422W5
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 11,707
Portage,michigan
|
Sounds like instead of continuing to have the same part fail, get Jesels for this motor too. Had a set of Jesel sportsman series on a 700 lift roller for 8 years with nary a problem, street driven too. New owner has now been running them 6 or 7 years with zero issues. For something with a big roller i wouldnt use anything but Jesel
Last edited by B3422W5; 09/21/17 08:14 PM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2375011
09/22/17 01:17 PM
09/22/17 01:17 PM
|
Joined: Jan 2003
Posts: 14,492 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
|
If the bores in the bodies are getting distorted, it isn't "wear"...... It's fatigue.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: keep wearing out my T&D rockers
[Re: dvw]
#2375131
09/22/17 05:51 PM
09/22/17 05:51 PM
|
Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
|
OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
|
I'm going to send them a set back and see what they say. Would going from 1.6 to 1.5 take a lot of load off of the rocker arm fulcrum?
These motors that keep wearing out the rocker arms, all have solid roller cams. I used the Indy R1 cam. I think that is already a fast lobe maybe I'm overdoing it with a 1.6 ratio....
Last edited by Old School; 09/22/17 05:53 PM.
68 cuda formula S 588" bb 5sp 70 CUDA CONVERT 500" 5SP (SUBLIME) 70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
|
|
|
Re: keep wearing out my T&D rockers
[Re: ccdave]
#2375219
09/22/17 09:35 PM
09/22/17 09:35 PM
|
Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
|
OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
|
This is why I like to use Comp Ultra Pro Magnum rockers on street cars with big boy valve springs. Those look interesting and they say they can handle up to 850 pounds of open pressure.....
68 cuda formula S 588" bb 5sp 70 CUDA CONVERT 500" 5SP (SUBLIME) 70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2375294
09/23/17 12:44 AM
09/23/17 12:44 AM
|
Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
master
|
master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
|
I have about 2000 miles on my T&D rockers, ran them on the MW victors with the PAC1325 springs, and currently with the stiffer 1326 springs. Not using any oil restrictors to the heads on mine? I haven't had issues (with the rocker arms) so far, just the Edelbrock rocker stands.
Last edited by 451Mopar; 09/23/17 12:45 AM.
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2375386
09/23/17 11:03 AM
09/23/17 11:03 AM
|
Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,206
New York
|
if the rocker body bores are not wore out
660 bronze insert
Boffin Emeritus
|
|
|
Re: keep wearing out my T&D rockers
[Re: polyspheric]
#2375489
09/23/17 02:36 PM
09/23/17 02:36 PM
|
Joined: Sep 2005
Posts: 1,328 St. Louis, MO
mopardamo
pro stock
|
pro stock
Joined: Sep 2005
Posts: 1,328
St. Louis, MO
|
if the rocker body bores are not wore out
660 bronze insert This is the way to go if it were up to me. I'd also check the OD of the shaft in multiple areas. Something is amiss!
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2375520
09/23/17 03:20 PM
09/23/17 03:20 PM
|
Joined: Jan 2003
Posts: 14,492 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
|
The OP says the bearings and shafts are not worn....... So it shouldn't be an oil supply problem. That being said, I usually run a .060 restrictor with Indy heads that are externally full time oiled.
From what I'm reading, it sounds like the bearing races are loose in the bodies. To me, that's an indication the bores in the rocker bodies have distorted.
So far, no one who has posted has run as many miles on these rockers as the OP with the same kind of spring loads he has.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2375527
09/23/17 03:32 PM
09/23/17 03:32 PM
|
Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
|
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
|
Like the title says, I keep wearing them out. I get maybe 4000 miles out of them. all on the street. So, this is not the first set to have this problem? I don't know how aggressive the Indy R1 lobes are, but maybe they're not really "street friendly" and - in conjunction with those stiff springs - you're simply wearing parts out that fast wracking up miles on the street.
|
|
|
Re: keep wearing out my T&D rockers
[Re: Old School]
#2375556
09/23/17 05:01 PM
09/23/17 05:01 PM
|
Joined: Jan 2003
Posts: 14,492 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
|
Another question I have is...... What is the actual installed height of the springs? If someone set the springs up to the now popular .050-.080 from coil bind at full lift, that would have the installed height pretty short for the 1225 spring and only .650-.670 lift. Set up in that scenario, the springs could be well over 300lbs closed.
Also, I've used PAC 1225's a number of times, and they are usually several pounds stiffer than spec as they come ootb.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
|
|