Official TVS Thread!!!
03-01-2013, 06:48 PM
#4757
only one i have right now will get more in a little bit
the previous owner rotated the retainer twice thats what the 2 lines you can see are and theres a third under the rocker arm
any ideas, also where can i get 8 new ti retainers for my supertech springs
03-01-2013, 07:47 PM
#4758
I have found this happens if you put LNF new style rockers on an LSJ and why Supertech came out with a new spring package for LNFs. Based on what I have found and experienced, its not the end of the work; fix the clearance and you will be fine and the Ti retainers dont need to be replaced... at least on mine, the marks dont hurt. Yours look a little nastier than the ones I had but I dont know what else. Talk to Supertech if you wish they are really decent people to deal with and very knowledgeable.
03-01-2013, 08:09 PM
#4759
the valves do rotate in the head btw. You can remove the rockers and surface grind them for clearance. Its a matter of thousandths of an inch. It only happens on the exhaust side.
I have found this happens if you put LNF new style rockers on an LSJ and why Supertech came out with a new spring package for LNFs. Based on what I have found and experienced, its not the end of the work; fix the clearance and you will be fine and the Ti retainers dont need to be replaced... at least on mine, the marks dont hurt. Yours look a little nastier than the ones I had but I dont know what else. Talk to Supertech if you wish they are really decent people to deal with and very knowledgeable.
I have found this happens if you put LNF new style rockers on an LSJ and why Supertech came out with a new spring package for LNFs. Based on what I have found and experienced, its not the end of the work; fix the clearance and you will be fine and the Ti retainers dont need to be replaced... at least on mine, the marks dont hurt. Yours look a little nastier than the ones I had but I dont know what else. Talk to Supertech if you wish they are really decent people to deal with and very knowledgeable.
Do you know if the new ti retainers are the same size
03-01-2013, 08:25 PM
#4760
The LSJ head has different architecture to the LNF, not just the inlet port angle and the DI injectors, but the spark plug surround boss has tent style structure, and the LNF is just open in that area.
So I dont know for sure, but I am guessing that the old LSJ rockers which were cracked at the pivot even when they were manufactured, were upgraded for the LNF. That leads to a retainer clearance issue I am thinking. And the casting for the LNF head was changed, maybe simplified for production ( I like the "look" of the LSJ head better but wtf do I know about casting structure? Nothing.) and the spring pockets evidently slightly smaller than the LSJ
all I know.
03-01-2013, 10:27 PM
#4762
supertech changed the spring I doubt they changed the retainer. Ya never know I didnt ask at the time. The issue with the LNF was two fold: the contact with the rocker, and the compressed spring having a larger compressed circumference than the head pocket.
The LSJ head has different architecture to the LNF, not just the inlet port angle and the DI injectors, but the spark plug surround boss has tent style structure, and the LNF is just open in that area.
So I dont know for sure, but I am guessing that the old LSJ rockers which were cracked at the pivot even when they were manufactured, were upgraded for the LNF. That leads to a retainer clearance issue I am thinking. And the casting for the LNF head was changed, maybe simplified for production ( I like the "look" of the LSJ head better but wtf do I know about casting structure? Nothing.) and the spring pockets evidently slightly smaller than the LSJ
all I know.
The LSJ head has different architecture to the LNF, not just the inlet port angle and the DI injectors, but the spark plug surround boss has tent style structure, and the LNF is just open in that area.
So I dont know for sure, but I am guessing that the old LSJ rockers which were cracked at the pivot even when they were manufactured, were upgraded for the LNF. That leads to a retainer clearance issue I am thinking. And the casting for the LNF head was changed, maybe simplified for production ( I like the "look" of the LSJ head better but wtf do I know about casting structure? Nothing.) and the spring pockets evidently slightly smaller than the LSJ
all I know.
03-02-2013, 12:33 AM
#4767
the valves do rotate in the head btw. You can remove the rockers and surface grind them for clearance. Its a matter of thousandths of an inch. It only happens on the exhaust side.
I have found this happens if you put LNF new style rockers on an LSJ and why Supertech came out with a new spring package for LNFs. Based on what I have found and experienced, its not the end of the work; fix the clearance and you will be fine and the Ti retainers dont need to be replaced... at least on mine, the marks dont hurt. Yours look a little nastier than the ones I had but I dont know what else. Talk to Supertech if you wish they are really decent people to deal with and very knowledgeable.
I have found this happens if you put LNF new style rockers on an LSJ and why Supertech came out with a new spring package for LNFs. Based on what I have found and experienced, its not the end of the work; fix the clearance and you will be fine and the Ti retainers dont need to be replaced... at least on mine, the marks dont hurt. Yours look a little nastier than the ones I had but I dont know what else. Talk to Supertech if you wish they are really decent people to deal with and very knowledgeable.
03-02-2013, 09:31 AM
#4770
yup. Advise sent me a PM I will send piks and specs Monday. Maybe if I can do it myself, earlier, but I have lots of stuff to assemble and ship out so gotta take care of that first. And I be feeling lazy. And Roger the engine man I think for him, its last weekend for ice fishing...what a curious sport. Sit in a tiny shack over a hole in the ice, drink beer in the freezing cold, catch fish which are generally so small,you throw them back?....now thats a good time!.......
03-02-2013, 10:58 AM
#4773
Agreed. Just looking at it from a structural standpoint, the rocket is a lot beefier than the retainer. It can lose a few thousandths without being affected like the retainer would be.