im building up a12a motor for turbo fi project purposes, and i just wondered if its worth it to get the solid corner seals from atkins,

http://cgi.ebay.com/ebaymotors/Corne...ayphotohosting

just want to hear if you think its worth it,
by the way im using all my old seals and springs on the rotors, except the oil rings, and i have 3rd gen corner springs, should i spend the extra 80$ ? or just run my old seals without the plastic inserts inside them,
thanks
Paul

 

Simply put I think you should only reuse parts if your motor has very low mileage. Being that your building a "H.O" 12a then I wouldnt think about reusing anything except maybe apex seal spring and side seal springs, but why not just go all the way? Trying to build any High Output motor with parts that are worn isnt worth the effort!

 

OH, and yes those corner seals are better than the ones with the plastic inserts.

 

Why do you think they're "better"?

 

you can and should order the plastic pieces. atkins sells them for like $12 a set or something....? cheap. anyway you need them so carbon wont build up behind the apex seals and corner seal springs. you say you are reusing all your old seals? apex seals?

 

so get the plastin inserts, or otherwise get the solid seals?

the other motor had brand new parts and only had 15thousand k on it when it oveheated and blew a water seal, so the parts are practically new, should i also be replacing springs since it overheated aswell??

so

 

just make sure you are checking all your clearances when you put it back together.
seals should stick up so high when installed with spring.
yes, i would just get the plastic inserts.

 

You cant use the plastic inserts on that particular corner seal!

 

we are talking about plastic inserts for the factory 12a corner seals.

 

so is it worth the extra 80$$ if im using used seals anyways? what do you suggest
thanks
paul

 

no, just buy the plastic inserts so that carbon wont build up.

 

k thanks,
i will do that,

 

i'd use the racing beat ones since the the atkins will tear upo your housings if they come loose

 

first of all those inserts are not plastic they are rubber, second of all, they are not there to keep carbon from building up.

The rubber inserts are there to help cranking compression, and they do a pretty good job doing it.

The only reason why you wouldnt run the plastic inserts is if you have ported the engine big enough to where the rubber insert would no longer be supported and fall out of the corner seal. The most people run the stock corner seals without the rubber insert.

Solid corner seals are a good alternative so running stock corner seals with no rubber insert. My only concern is ive never torn down a high milage motor with solid corner seals, so I have no idea what the long term effects of them are. Ive heard reports of them wearing faster than OEM corner seals

 

on every motor i have torn down the corner seals that no longer had the plastic ( rubber...whatever ) had major carbon builup behind the apex seal and the apex seal spring was in bad shape, where as the ones that were intact were not as bad. a lot of people dont use them period. i say use them so that less carbon will build up behind your apex seals.

 

You can get OEM 3mm solid corner seals. Just wanted to clear that up.