Re-seal cups or no?

[Chevy1925]

So im im a debate with myself. Should i pull all my cups and reseal them? Or leave them as is in the head? None of the cups came out when i pulled my injectors and never had any issues with them popping up and leaking in the last 165k. I did have guy pressure test my heads with the cups in so dont know if that would affect them. Im just afraid ill pop them out and reseal them but not have them seal all the way once i put them back in. Then there again, my luck if i left them alone ill pop a cup the first hard run. Whats do you guys do?

 

[TeaBagger2006]

reseal

 

[super diesel]

X2. RESEAL James. PITA, but worth it. Clean the bottoms where the cup seal in the heads with some plumbers brushes (heavy duty and aggressive and use a flash light to see in there to make sure all the old stuff is gone), and same with the bottom sealing area of the cup itself. Use some 272 loctite and sleep good.

 

[sweetdiesel]

X2. RESEAL James. PITA, but worth it. Clean the bottoms where the cup seal in the heads with some plumbers brushes (heavy duty and aggressive and use a flash light to see in there to make sure all the old stuff is gone), and same with the bottom sealing area of the cup itself. Use some 272 loctite and sleep good.

I've used a barrel brush on a drill .... Worked great

I used baker lock this time around it's a oilfield product

 

[Fastorange]

there are some shops now that sell screew in cups... i know its more money eather way... i dont know what hp lvl your shooting for but might wanna look in to it... i never lifted a cup when i had my lb7...

 

[Evan@InglewoodTrans]

Funny you would ask this i've been running the same question through my mind. I'm afraid if I mess with them I will start having issues but on the same note i'm afraid if I don't I will have issues.

 

[bullfrogjohnson]

talk to ecc33 about it

 

[hondarider552]

there are some shops now that sell screew in cups... i know its more money eather way... i dont know what hp lvl your shooting for but might wanna look in to it... i never lifted a cup when i had my lb7...

Cant screw in a cup when there are no threads to use.. on a stock head

 

[blk smoke lb7]

Everytime i do any injector work i always reseal,im always afraid everytime i pull an injector that i weakend the cup seal and i have never had a problem yet,just my .02

 

[jmaz268]

Everytime i do any injector work i always reseal,im always afraid everytime i pull an injector that i weakend the cup seal and i have never had a problem yet,just my .02

x2....Much easier to do once than to pull it all back apart again.

 

[DIESELMAFIAPER.LB7]

I didbt reseal mine 40 k miles ago and im good still they have 238k miles on them and have seen 48psi so its a crap shoot imo. But if there out you may as well James ill know when my new injectors show up and i pull my old ones if i pushed one in az

 

[Sledhead]

This dilemma confuses me, they must come out to mill the heads anyway. Wouldn't planing the heads be a normal step in any build or a given any time the heads come off given the (ab)use most get? Or am I off base?

 

[Chevy1925]

talk to ecc33 about it

yeah i read his ordeal on that lol. Ive just also been told, if the cups dont pull out with an injector, leave them alone. so figured id ask.



Thanks for all the info guys, ill be pulling the cups and resealing them. Now to build travis sweet little tool

 

[Jscherbs]

good move James i'd rather just reseal them at not worry about it

 

[DIESELMAFIAPER.LB7]

:roflmao: goodluck buddy

 

[Sledhead]

My machine shop did mine and pressure tested after. Cheap insurance.

 

[Chevy1925]

:roflmao: goodluck buddy

watch it, ill put "relief cuts" in them bars :hug:

 

[Evan@InglewoodTrans]

Im glad you started this thread. I just went out and pulled mine and with how easy they came out I'm glad I did. I was thinking after 170,000 they wouldn't want to come out.

 

[Chevy1925]

My machine shop did mine and pressure tested after. Cheap insurance.

Guy tested my heads as well but dont think he tested the cups. could be wrong though.

Im glad you started this thread. I just went out and pulled mine and with how easy they came out I'm glad I did. I was thinking after 170,000 they wouldn't want to come out.

No prob. i did a quick search and didnt find much so figured id post up. Id assume the dealer resealed the cups when i had injectors done at 100k but there again, i dont trust anything they do. Specially after what i found missing and loose on my motor

 

[super diesel]

Here's the thing I've found James. Any time the cups are disturbed at all, they can leak. Loosening the injector clamps and lifting the injector usually can let the hardened sealant crack around the cup base where it seals, then you can stick a fork in them cause their done.