my rb20 siezed!

[xdream]

anyway i was doing a compressrion check and i got like more then halfway done and then the motor siezed it only turns like 90 degrees manually...

what happened? the motor is out and i just put the head back on after fixing valves....so the transmission connected the transmission sort of so the starter could mount.

did a check on 4 cylinders and then bam it jammed!

[gawdzilla]

uhhh.... doesnt sound good.

pull off the trans and make sure something didnt bind the flywheel first. then take off the front cover and check your timing belt.

[xdream]

i think the timing belt slipped cause i think i saw it hopping...

but do i have to do anything with the oil? cause its drained but there is still a little bit left. im cranking it on the ground its standing upright with a jack.

[xdream]

also i was cranking the motor by jumping the starter and then the belt slipped and slipped again would that bend the valves?? is it strong enough to??

and if they did bend would a machine shop fix it or do i need new vavles.

[Yellow4g63]

Nope you prob bent alot of valves. pop off the timming cover and see if the gears spin when the crank moves.

[themadscientist]

You know that instinctive flinch you do when you see another guy get kicked in the nuts? I just did that reading this post.

[xdream]

do you guys know where i can get some new valves or will a machine shop fix those?

[themadscientist]

IF you bent the valves they are not repairable, you will need new ones.

[Carl H]

why are you comp testing the motor with no oil in it...also if you saw the belt jump around some why did you charge on?

[themadscientist]

Lessons like this tend to stick with a person. I guarantee he won't ever do it again Carl Most of the trueisms I hold close are the product of doing something different, righteously f-in something up an saying to myself "better not do that again". The scars help to remind us as well

[gawdzilla]

also i was cranking the motor by jumping the starter and then the belt slipped and slipped again would that bend the valves?? is it strong enough to??

and if they did bend would a machine shop fix it or do i need new vavles.

the starter is strong enough to snap your arm like a twig, and walk your car forward up a hill easily. rock crawlers use the starter all the time to make forward progress and keep from rolling backwards on steep inclines

so yes, it can bend the crap out of your valves

[Shocker]

the starter is strong enough to snap your arm like a twig, and walk your car forward up a hill easily. rock crawlers use the starter all the time to make forward progress and keep from rolling backwards on steep inclines

so yes, it can bend the crap out of your valves

thus the reason when you see a started tested, it isnt being held in the testers hand while started....

my guess is valves.

[themadscientist]

I stand on them when I test them and if they simply must jump I let em do it and get the hell out of the way!