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Straub Bushing Trunion Kits?

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Old 04-25-2016, 12:50 PM
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Again...any of these are going to fail at some point in time. The advantage of the bushing is that during failure mode you are not going to end up with needle bearings in the engine that could find their way to the oil pump. The bushing will wear and the valve train will get noisy telling you ......hey I need some help in here.
Old 04-25-2016, 04:26 PM
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Originally Posted by Cstraub
He is waiting on the car to come in to swap out cam and lifters in it for testing a new Morel LS lifter. I've asked him to take pictures.
I'll be watching for your post, very interested.
Old 04-25-2016, 07:52 PM
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I just got mine in today and will be putting them together tomorrow (pending that it rains).
Old 04-25-2016, 09:48 PM
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Originally Posted by Cstraub
Again...any of these are going to fail at some point in time. The advantage of the bushing is that during failure mode you are not going to end up with needle bearings in the engine that could find their way to the oil pump. The bushing will wear and the valve train will get noisy telling you ......hey I need some help in here.
I'm in!! Got a set to put in my LS3 rockers for my current swap. Don't like the idea of needle bearings possibly dancing around in there.

I like the idea that they will "talk" to me.
Old 04-26-2016, 04:49 PM
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I'd actually like some clarification since clearly I am not nearly as qualified as 90% of the people who have designed or even installed these yet.

When I press the bushings in level with the face of the rocker and install trunnions plus clips, when I ever so slowly rotate the rocker 360* by hand, I feel some very minor resistance in 1 or 2 spots.
Upon further investigation I assembled the c-clips and bushings onto the trunnion without using a rocker and slowly rotated it over by hand from the trunnion. I am not sure if the resistance has to do with the c-clips rubbing the bushing or the corners of the trunnions rubbing the bushing. Either way, it would wear to the point it will no longer rub but I question how good it is to have brass shavings running through the motor.

The edges of this section where my thumb is and the opposite side of the trunnion is what I feel like is contacting the bushing:



Old 04-26-2016, 05:22 PM
  #186  
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^ I too had this problem. I forgot what sockets were used to press them in, but atleast my socket (socket thickness will very by brand) would push the bushing in just barely to far and create resistance like you mentioned.

I took a thick washer and drilled a bigger hole in it to where it would go over the trunion but still press the bushing in and just used the socket to push on the washer. After that they all moved freely.
Old 04-26-2016, 05:24 PM
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It won't fully rotate when installed and it won't leave shavings like you think
Old 04-26-2016, 05:26 PM
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And for the people who don't know. Those little needle bearings cause quit a mess in an engine . That's why a lot of your high end lifter now don't use them
Old 04-26-2016, 05:42 PM
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Originally Posted by dmracing
It won't fully rotate when installed and it won't leave shavings like you think
This is true. But besides just the one washer I had to use these bushings from what I can see/tell are very high quality and from a great company. I look forward to seeing how they perform. (havent started engine yet)

Originally Posted by dmracing
And for the people who don't know. Those little needle bearings cause quit a mess in an engine . That's why a lot of your high end lifter now don't use them
This
Old 04-26-2016, 06:51 PM
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Originally Posted by BrownMK3Kid
^ I too had this problem. I forgot what sockets were used to press them in, but atleast my socket (socket thickness will very by brand) would push the bushing in just barely to far and create resistance like you mentioned.

I took a thick washer and drilled a bigger hole in it to where it would go over the trunion but still press the bushing in and just used the socket to push on the washer. After that they all moved freely.
My problem is I am not getting a constant resistance. They have a few spots in a full 360* rotation that create the slightest difference of resistance.

Is their supposed to be any horizontal play in the trunniom when it's properly installed?
Old 04-26-2016, 06:53 PM
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I believe mine when I was done had a small amount of side to side play
Old 04-26-2016, 09:44 PM
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Side to side play is normal. Sounds like you're pushing them in a hair far.
Old 04-27-2016, 10:11 PM
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Potentially silly question- can these be used on rockers other than stockers? My car has the older Yella Terra roller rockers. My heads are Tony's MMS 220s.
Old 04-28-2016, 09:27 AM
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We press the bushings in flush with the body. Side to side play is normal.

A note stocking board sponsors of the kits now are:
BTR
Colorado Speed
CPR
Mast
SDPC
Smallwood Race Development
Texas Speed
Tick Performance
WS6

I went by Alphabetical sequence above.
Old 04-28-2016, 10:23 AM
  #195  
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Thanks, I got mine from CPR in LA.


Inspecting them closely, I see they are very nicely made and packaged.
Old 04-28-2016, 04:39 PM
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Just got mine in today, ordered from Brain, who shipped this all the way to Alaska basically overnight! I'm very picky on the quality of parts I use on my builds, and I can definitely recommend these, as they are worth every penny.

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Old 05-05-2016, 08:27 PM
  #197  
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Originally Posted by Cstraub
We press the bushings in flush with the body. Side to side play is normal.

A note stocking board sponsors of the kits now are:
BTR
Colorado Speed
CPR
Mast
SDPC
Smallwood Race Development
Texas Speed
Tick Performance
WS6

I went by Alphabetical sequence above.
Although you probably have several others vendors/sellers by now, I just today saw that Smith Brothers pushrod company is also selling your kits.

http://www.pushrods.net/trunnion.html
Old 05-06-2016, 01:46 AM
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I just received my kit from BTR and I was disappointed to find that the install washers weren't included in the kit. I just figured that a couple of washers wouldn't have to be ordered separate so now I have to figure out how to get my hands on an "install kit".
Old 05-06-2016, 01:56 AM
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Will someone with some miles on their kit, please inspect them for wear and post some pictures.
Old 05-06-2016, 08:53 AM
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Originally Posted by roth2000
I just received my kit from BTR and I was disappointed to find that the install washers weren't included in the kit. I just figured that a couple of washers wouldn't have to be ordered separate so now I have to figure out how to get my hands on an "install kit".
I was using washers from a Comp upgrade kit, didn't even realize they were missing. I know it's no consolation, but an appropriately thick piece of wood with a hole drilled would do the trick. You're really only trying to stop the press once it reaches the outside of the rocker bearing bore.


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