keep wearing out my T&D rockers
#2374597
09/21/17 04:26 PM
09/21/17 04:26 PM
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Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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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!
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Re: keep wearing out my T&D rockers
[Re: Old School]
#2374600
09/21/17 04:29 PM
09/21/17 04:29 PM
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Joined: Jan 2003
Posts: 8,027 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,027
Tulsa OK
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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
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Re: keep wearing out my T&D rockers
[Re: Old School]
#2374605
09/21/17 04:40 PM
09/21/17 04:40 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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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.
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Re: keep wearing out my T&D rockers
[Re: Old School]
#2374614
09/21/17 05:02 PM
09/21/17 05:02 PM
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Joined: Jan 2003
Posts: 14,498 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,498
So. Burlington, Vt.
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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
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Re: keep wearing out my T&D rockers
[Re: Racer33]
#2374615
09/21/17 05:03 PM
09/21/17 05:03 PM
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Joined: Jan 2003
Posts: 10,022 MN
JERICOGTX
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,022
MN
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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
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Re: keep wearing out my T&D rockers
[Re: Old School]
#2374673
09/21/17 06:39 PM
09/21/17 06:39 PM
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Joined: Apr 2005
Posts: 1,505 TN
SCATPACK 1
pro stock
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pro stock
Joined: Apr 2005
Posts: 1,505
TN
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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
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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
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Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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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!
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Re: keep wearing out my T&D rockers
[Re: WedgeFED]
#2374689
09/21/17 07:11 PM
09/21/17 07:11 PM
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Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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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!
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Re: keep wearing out my T&D rockers
[Re: Old School]
#2374697
09/21/17 07:23 PM
09/21/17 07:23 PM
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Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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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!
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Re: keep wearing out my T&D rockers
[Re: Old School]
#2374707
09/21/17 08:11 PM
09/21/17 08:11 PM
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Joined: Jan 2003
Posts: 11,711 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,711
Portage,michigan
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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
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Re: keep wearing out my T&D rockers
[Re: Old School]
#2375011
09/22/17 01:17 PM
09/22/17 01:17 PM
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Joined: Jan 2003
Posts: 14,498 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,498
So. Burlington, Vt.
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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
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Re: keep wearing out my T&D rockers
[Re: dvw]
#2375131
09/22/17 05:51 PM
09/22/17 05:51 PM
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Joined: Mar 2009
Posts: 1,169 Virginia Beach, VA
Old School
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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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!
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