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Steve Morris Rocker Arm Trunion kit.

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Old 02-24-2017, 11:14 AM
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Brad Kirby
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Default Steve Morris Rocker Arm Trunion kit.

https://www.stevemorrisengines.com/s...d-service.html

I've read about failures caused by this issue, my car seems to have all of the common issues so I figure I better head this one off. I've also read of the kit with needle bearings being unreliable. How about the kit linked above? Car is down for other (a lot of) repairs so I want to get this out of the way.

I have a small press (2-ton I think), will that be sufficient to press the bushings in/out?
Old 02-24-2017, 12:20 PM
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hatewhatownsyou
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I bought the straub kit but it's the same concept. Quieted down my valve train noise

Did it on my garage floor with a "porta-vice" c clamp and sockets.
Old 02-24-2017, 12:20 PM
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Smoken1
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They look the same as these
http://www.straubtechnologies.com/ls...ts-with-bolts/
The kit without the bolts is 159.00 also
Old 02-24-2017, 12:38 PM
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feeder82
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on the Morris kit, the trunnion has a couple grooves for oiling, don't know if the Straub does, they might i think it's a upgrade over the original bushing style kits.
Old 02-24-2017, 12:41 PM
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DetroitPlac
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I installed these with a bench vice. I used the summit trunnion install tools and it was ridiculously easy to do.

https://www.summitracing.com/parts/sme-906011

Though, I'm not sure it's really necessary if you're running a stock cam. Issues really start to come into play with higher lift cams.
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Old 02-24-2017, 01:38 PM
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Thanks all for the replies. Are the bolts necessary? I have no issue buying upgraded parts unless the stock part works just fine.
Old 02-24-2017, 01:39 PM
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I reused the stock bolts. They're pretty substantial, and they don't really get torqued down a ton. Unless yours are in bad shape somehow, I'd skip them.
Old 02-24-2017, 03:17 PM
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I got the Straub kit yesterday. Hopefully will press them in this weekend. Will be another week before installing back into the car.

There is more clearance between the trunnion and bushing than the roller bearing trunnions. The brass bushings can rock slightly on the trunnions. My roller bearing type had zero play even with the trunnion worn out.
Old 02-24-2017, 03:23 PM
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DetroitPlac
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Originally Posted by Rx7Rob
I got the Straub kit yesterday. Hopefully will press them in this weekend. Will be another week before installing back into the car.

There is more clearance between the trunnion and bushing than the roller bearing trunnions. The brass bushings can rock slightly on the trunnions. My roller bearing type had zero play even with the trunnion worn out.
I noticed that too when I first got them. But once they're installed, there's zero play.
Old 02-24-2017, 08:16 PM
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The stock bolts have a larger shaft diameter near the bolt head, the old trunnions have a larger hole hear the top to accept them but the new trunnions don't, the old bolts will bind on the new trunnions near the bolt head. These won't bind because they don't have the larger diameter near the bolt head, https://www.mcmaster.com/#91290a448/=16i10di.

Last edited by Fast one; 02-24-2017 at 08:26 PM.
Old 02-25-2017, 02:36 PM
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leadfoot4
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Originally Posted by Brad Kirby
https://www.stevemorrisengines.com/s...d-service.html



I have a small press (2-ton I think), will that be sufficient to press the bushings in/out?
IMHO, it's just another vendor selling the Straub kit. Looks like the Straub pictures.....


And you don't really need a 2 ton press to install these bushings. I have a small, bench mounted, hand powered, Arbor press, and it worked just fine. This isn't a "brute force" job, it's a finesse job.

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