Straub Bushing Trunion Kits?
#862
Me too with CHE. VERY easy to install, no tools needed, fantastic machining tolerance. Several track days (HPDE) and just as quiet as when first installed. No wear measurements but nothing I can see or feel. Got mine direct from CHE.
#864
Manton has a kit now. I wish these were out when I bought my Straubs (or whoever actually makes them), which I'm not thrilled with.
http://rollerrockerarms.com/ls-bille...-trunnion-kit/
http://rollerrockerarms.com/ls-bille...-trunnion-kit/
Last edited by NEstyle; 03-17-2018 at 02:02 PM. Reason: grammar
#867
Manton has a kit now. I wish these were out when I bought my Straubs (or whoever actually makes them), which I'm not thrilled with.
http://rollerrockerarms.com/ls-bille...-trunnion-kit/
http://rollerrockerarms.com/ls-bille...-trunnion-kit/
#868
TECH Senior Member
#869
A major design flaw, in my opinion, is how the inside edge of the bushings rub on the wider portion of the shaft if side loaded. To test this, assemble a rocker and rotate it back and forth on the shaft. You'll be left with millions of little pieces of brass because the shaft is not smooth where it touches the bushing and just grinds into it. Not good.
The brass bushings in my kit were badly oxidized and had to be cleaned really well. I could not see the oxidation on the bushings, but I could feel it when rotating a bushing on a dry shaft prior to assembly. Lots of green oxidation came off the bushings during cleaning. The rags turned green! After cleaning off the oxidation, they felt smoother.
Surface rust on the shafts. Required polishing to remove.
Poorly machined bushing IDs. About 90% of my bushings' IDs were stepped and not smooth. The fact that some looked perfect and others looked stepped was very unsettling. I sent that set back and was provided with another set that was exactly the same. I was assured that they were all "within spec". Scary. I simply don't understand why they all don't look the same. That points to QA/QC and machining issues.
Barely any bearing area, especially on the latest design with the oil groove.
The brass bushings in my kit were badly oxidized and had to be cleaned really well. I could not see the oxidation on the bushings, but I could feel it when rotating a bushing on a dry shaft prior to assembly. Lots of green oxidation came off the bushings during cleaning. The rags turned green! After cleaning off the oxidation, they felt smoother.
Surface rust on the shafts. Required polishing to remove.
Poorly machined bushing IDs. About 90% of my bushings' IDs were stepped and not smooth. The fact that some looked perfect and others looked stepped was very unsettling. I sent that set back and was provided with another set that was exactly the same. I was assured that they were all "within spec". Scary. I simply don't understand why they all don't look the same. That points to QA/QC and machining issues.
Barely any bearing area, especially on the latest design with the oil groove.
#873
TECH Senior Member
iTrader: (3)
Older thread, new questions.
I ordered a Smith Bro's trunnion kit. The bushings are loose in the rockers. Rockers are @111K miles, from an L33/Suburban engine, that didn't appear to ever been apart.
Sent them back, and ordered a Straub kit....Exact same kit, even down to the location they were shipped from. [Piney Flat, Tn.]
New kit is loose, too. [Looks identical to the pic in post # 872.]
The previous kit from Straub, fit exactly as it should.
The questions: Is it common to find stock rockers w/ over sized bores? [The original needle brgs were tight, in these rockers.]
Is the CHE kit full floating?
I ordered a Smith Bro's trunnion kit. The bushings are loose in the rockers. Rockers are @111K miles, from an L33/Suburban engine, that didn't appear to ever been apart.
Sent them back, and ordered a Straub kit....Exact same kit, even down to the location they were shipped from. [Piney Flat, Tn.]
New kit is loose, too. [Looks identical to the pic in post # 872.]
The previous kit from Straub, fit exactly as it should.
The questions: Is it common to find stock rockers w/ over sized bores? [The original needle brgs were tight, in these rockers.]
Is the CHE kit full floating?
Last edited by Old Geezer; 03-14-2019 at 01:45 PM. Reason: added info
#874
TECH Senior Member
The CHE kit IS full-floating
#876
TECH Senior Member
#879
TECH Apprentice
Manton has a kit now. I wish these were out when I bought my Straubs (or whoever actually makes them), which I'm not thrilled with.
http://rollerrockerarms.com/ls-bille...-trunnion-kit/
http://rollerrockerarms.com/ls-bille...-trunnion-kit/