m233roller
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What the heck is going on with my T&D roller rockers?? They keep eating up (even breaking pieces off) the damn spacer washers?? Hasn't anyone had this issue? I'm getting tired of this crap!!
Having HELL with T&D Rockers??
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Post pictures of the carnage. Ive ran them for 15 years and never had washer failure. The set that is currently on my blue car is the first set i got back in the mid 90's and only replaced the shafts once. They have over 100k on them and still have the same washers they had when i got them.
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i would call T&D and see what they say , best is probably to send them in and have them look em over and they can fix issues youd never find
(775) 884-2292
(775) 884-2292
mikestertwo
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Post pics Mike. I have been running T&D's on several motors for over 10 years with no problems. My latest motor is also using them with no issues. 
johnplogii
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I've seen it happen but it was on heads that were not machined.
m233roller
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No it's not the pedestals. These are newer Champion iron heads and there's all kind of clearance for the washers at the pedestals but that's the funny thing about this , it's just the washers with the flat spot on them. I had this issue last year (Hardly ANY miles on this ALL NEW set up). I called T&D and told them what was happening to the washers and told them the rockers were just WAY to tight once on the heads and all I got from them was jeez really don't know, never heard of that before, your pedestals are off (and I had already considered that being they are just a cast piece) BUT REALLY I said BOTH HEADS ?? I then asked the guy if they had any thinner washers, like 20 or 25 thous. thick ones ? All I got there was NOPE. So I asked the guy if they'd replace the washers as there was hardly any miles on these new rockers. NOPE again and then the azzholes had enough balls to charge me like $24 and shipping for a new set of washers. Being the pedestals are ground correctly and I know they are as Iv'e measured and compared them to another set of Champion heads. So I ground down the sides of the square hold downs and the gold spacer tubes so all the rockers had alittle side clearance and installed the new washers and when I checked them at about 1000 miles all looked good. NOW up to date. I just look them off again with less than 2000 miles total and I'll be damned if 2 of those washers aren't all gound up and breaking up.????
Cam walking ?
Ok , so maybe your camshaft has to much end play and its walking the rocker arm back and forth. What kind of nose gear and cam do you currently have? Also what is your valve lash set at? Also did you follow T&Ds instructions for proper push rod measurements? When i purchased my T&Ds i had to get different length push rods after checking the length.
Ok , so maybe your camshaft has to much end play and its walking the rocker arm back and forth. What kind of nose gear and cam do you currently have? Also what is your valve lash set at? Also did you follow T&Ds instructions for proper push rod measurements? When i purchased my T&Ds i had to get different length push rods after checking the length.
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Not sure, but I'd say torque the things down (18-20 ft lbs.) withOUT the pushrods in. You should be able to rotate the arms smoothly. look for binding or interference. If that feels good, try loading the rockers from side to side and see if you can feel any binding or grinding.
Could it be from a needle bearing inside? Are your pushrods rubbing against anything and side loading your rockers.
Let us know what you find.
Mike Barnard
Could it be from a needle bearing inside? Are your pushrods rubbing against anything and side loading your rockers.
Let us know what you find.
Mike Barnard
m233roller
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Spooln,
This is a 206-206 billet roller and is set up perfect with 5ths. end play so I know that's not the problem. I set the preload at 30ths. Yes I measured and had Smith Bros. make me the correct length pushrods. It wouldn't have much to do with push rod length anyway, that would be vertical motion not horizontal and that's where the problem is. Rockers just to tight on the shaft, NO side clearance.
This is a 206-206 billet roller and is set up perfect with 5ths. end play so I know that's not the problem. I set the preload at 30ths. Yes I measured and had Smith Bros. make me the correct length pushrods. It wouldn't have much to do with push rod length anyway, that would be vertical motion not horizontal and that's where the problem is. Rockers just to tight on the shaft, NO side clearance.
m233roller
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Mike,
There where some that rotated kind of stiff before I did all the clearancing in post 7 and they now rotate smooth as glass and have just a nice little bit of side play torqued down 20lbs. with no push rods. And as I stated it's just the two center ones on the drivers side that did it now. I'm going to measure the width of the square hold downs and see if there's much difference in the width of them. Thanks for all the imput guys.
There where some that rotated kind of stiff before I did all the clearancing in post 7 and they now rotate smooth as glass and have just a nice little bit of side play torqued down 20lbs. with no push rods. And as I stated it's just the two center ones on the drivers side that did it now. I'm going to measure the width of the square hold downs and see if there's much difference in the width of them. Thanks for all the imput guys.
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Ppost some pics so we can see exactly whats going on.
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keep in mind that the rocker pedestals are not the same spacing size , the shafts have to be assembled with the correct spacers on each side of the center pedestal , maybe they messed up on yours
and i know you say correct pushrods with .030 preload , but just to check because it would affect the oiling ,
and are the T+D assembly you have for iron heads , they are different for alum heads
and i know you say correct pushrods with .030 preload , but just to check because it would affect the oiling ,
and are the T+D assembly you have for iron heads , they are different for alum heads
m233roller
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Dave, This happened on both sides so I don't see how swapping rockers side to side will help? Paul, Yes I was very careful to get right pushrod lenght so the oiling hole in the adjuster screw would line up with the oil hole in the rocker arm, this thing oils the S-it out of the top end. Yes the gold bushing spacers are correct as I checked that and if put on wrong things are really off. I went out at 11;30 last night and measured all the square hold downs and the middle one on the drivers side is about 6 ths. wider than all the rest and thats right where it ate up two more washers. Now I don't have the packaging they came in so can't check part numbers again but are they that close from iron heads to aluminum? I'm beginning to believe it's in the pedestal spacing on these heads. As in post 7 just clearancing those square hold downs and the gold spacer bushings afew ths. seems to be the fix.
Now I have to ask can one of you fine fellows post these pics. for me ? I just can't get them on here. If you can send me your email address I'll send them to you. Thanks much for all your guys help.
PS. As far as bolting them on the head they line up perfectly and bolt right on.
Now I have to ask can one of you fine fellows post these pics. for me ? I just can't get them on here. If you can send me your email address I'll send them to you. Thanks much for all your guys help.
PS. As far as bolting them on the head they line up perfectly and bolt right on.
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