shattered rocker arms sr20det

[scherger_16]

fully rebuilt my s13 black top sr20det and broke it in went to the drag strip and shifted into third and felt a miss fire towed it home cuz it ran like s*** found out i broke 2 rocker arms in cyc number 1 i had the bee r set to 7,000 for rev limit i have brian crower 265 12.06 intake and exhaust cams springs and retainers with isis rocker arm stoppers i know i didnt over rev it because of the bee r is this a common thing to happen do they make aftermarket rocker arms or should i have bought new ones when i did the rebuild has this happened to anyone else what can i do to prevent this from happening again i got away lucky this time and never smashed the valves into the pistons and now i have to tear appart till i find all the peaces

[motoman399]

wow im so glad i have a ka24de. no rockers to break, dont have to buy rocker arm stopper. STOKED. sorry man lol. let me know if you wanna get rid of that BeeR

[OutToWinPAHC]

Were the lifters shimmed properly? I wonder if it was slapping causing play somehow, or better yet..... what initiated the need for the rebuilding did something heat or stress?

[scherger_16]

no i rebuilt the motor cuz of a bad tune and desisded while it was appart to upgrade cams and springs and retainers they are hydrolic lifters so you dont need to shim them and sorry wont get ride of the bee r got to good of a price for it

[motoman399]

well when you go back to ka cause you realize that sr's arent for the cool kids anymore ill trade you that bee r for a complete s14 ka

[lovemy89240]

well when you go back to ka cause you realize that sr's arent for the cool kids anymore ill trade you that bee r for a complete s14 ka

I would take you up on that offer if i was closer haha

[nifares240]

keep the BeeR. you can use it for the next motor.

[motoman399]

keep the BeeR. you can use it for the next motor.

nobody cares what you think

[scherger_16]

naa ill pass on the ka a bee r is worth more to me then an sr the motor is still good i can still use this motor i just broke 2 rockers and want to know why they broke and what i have to do to prevent the problem again

[kouki munster]

Were you bouncing off the rev limiter when it happened? When you had it torn down how did you keep the rocker pivots stored, did you have them laying on their side or were the sitting vertical? Did you bleed the air out of the pivots before putting them back in? The pivots are kind of picky and you must bleed them before they are reinstalled, if they are not they will be softer than they should and will allow for enough extra play to toss a rocker even if you have ras.(It takes a good while for the air to work its way out if even at all by running the engine)

As for the sr bashing, I've been spining my sr to 8k with the same cams, springs, retainers, and a set of greddy ras on a fairly regular basis over the last 10k-15k miles and have had 0 problems.

[ZootedS13]

wow im so glad i have a ka24de. no rockers to break, dont have to buy rocker arm stopper. STOKED. sorry man lol. let me know if you wanna get rid of that BeeR

well when you go back to ka cause you realize that sr's arent for the cool kids anymore ill trade you that bee r for a complete s14 ka

nothing you say helps at all.

[scherger_16]

no i didnt bleed the lifters i thought by driving they will self bleed i had them in oil standing up for the most part untill people think its fun to play with parts that arnt theres and yes i think i kinda noticed something from the launch witch i was bouncing off the rev limit set to 5,000rpm and when i shifted into third is when the rest let loose still ran a 13.8 on three cyclendars haha

[kouki munster]

Yeah, the sr rocker pivots don't self bleed very well, and if they where sitting in oil standing vertically they should have been ok, but if they were on their side, not submerged at all for any period of time other than a couple of minutes it is a good idea to bleed them. At a 5k rev limit everything should have been just fine unless one of the rocker pivots had an air bubble trapped in it.

[nifares240]

keep the BeeR. you can use it for the next motor.

nobody cares what you think

nobody cares about your crashed car or your KA. if you're not going to post any constructive or helpful thing to say, please don't post.

[Hijacker]

Yeah, the sr rocker pivots don't self bleed very well, and if they where sitting in oil standing vertically they should have been ok, but if they were on their side, not submerged at all for any period of time other than a couple of minutes it is a good idea to bleed them. At a 5k rev limit everything should have been just fine unless one of the rocker pivots had an air bubble trapped in it.

They don't self bleed period. Once they have air in them, they need to be pulled and re-bled.

[kouki munster]

I couldn't remember for sure if they would slowly work out the air or not, but I know that if they come out for any reason its a good idea to take the extra time and make sure all the air is out.

[motoman399]

nobody cares about your crashed car or your KA. if you're not going to post any constructive or helpful thing to say, please don't post.

karma is a b****. it will be making its rounds with you (:

to the op. sorry man i dont know d!ck about those motors.

[scherger_16]

ok well ill bleed them i have heard stuff about the bee r and sr and when its bouncing of the rev limiter it is jerking the everything in the valvetrain and can cause a shim to pop off causing the rocker to break but who really know what happened i just dont want it to happen again

[motoman399]

just sell me the bee r and you shouldnt have that problem :P

[240_SeX]

If you don't like SR's why did you click on the "SR" section?

KA's are for hardbodys, that's why we dont post in sections where the children aren't smart enough to swap an engine.

[PyR0NiAk]

If you don't like SR's why did you click on the "SR" section?

He likes boat anchors. Let him.

Moto, this isn't the classifieds section.

[kouki munster]

He likes boat anchors. Let him.

I loled.

[motoman399]

If you don't like SR's why did you click on the "SR" section?

KA's are for hardbodys, that's why we dont post in sections where the children aren't smart enough to swap an engine.

this was originally posted in the 240 gen forum. dont worry sweetie i dont ever venture into the sr part unless i absolutely need to

If you don't like SR's why did you click on the "SR" section?

He likes boat anchors. Let him.

Moto, this isn't the classifieds section.

hmmm i do love me those boat anchors. and screw you guys im goin home!

[kouki munster]

and screw you guys im goin home!

Cartman approves.

[scherger_16]

atleast by having an sr i could trade the motor and get more then a bee r for it haha keep you ka i threw mine in the dump.

[PyR0NiAk]

keep you ka i threw mine in the dump.

I literally threw mine in the dumpster. There was a picture of it in my sig for a long time. There were quite a few kids using it as their avatar.

[kouki munster]

I traded mine for a vh and then sold the vh for $400 or $500. If I swap a a twin cam V-8 It will be one with a large after market support, as there is no way I wouldn't throw a crap ton of boost at it.

[PyR0NiAk]

Someone gave you a VH for your KA?

[kouki munster]

Yep, straight trade for the engine and transmission.

[PyR0NiAk]

Awesome!