fong

iTrader: (77)

hi, guys, I have no clue about how this happened.

I was trying to strip down a long block. the flywheel and counterweight are already taken out. I was trying to loose the e-shaft bolt using the ratch and 19mm socket by counter clockwise. as you know, by doing that will rotate the rotors. yah, I was able to make couple turns, and then the engine locked up. I counldn't turn the engine in either way? what is going on? man, the e-shaft bolt is so tied that I even broke my ratch when using extension bar on it.

wonder 240 foot/lb impact gun will good enough to take that e-shaft bolt out?

ZachSpazz

Put the flywheel back on, and use a flywheel brace to hold the e-shaft steady. Then remove the front bolt.

The engine shouldn't have seized like that. Maybe you dropped something into the intake manifold?

ZachSpazz

Also, when I removed the front bolt on my engine, I had to heat the bolt with a propane torch, and then use a 3' cheater pipe on my 3/4" driver to get the bolt loose.

The Craftsman driver was bending pretty badly, and is probably junk now, as it's somewhat fatigued.

Terrh

iTrader: (7)

that bolt can be a BITCH.

use heat.

lots and lots of fire always solves things.. mwahahahahahahahahahhhaahhaaha!!!!

fong

iTrader: (77)

yah, I am think about to use torch. but did I just lock(seized) the engine? why it is not rotating?

thanks

fong

iTrader: (77)

I don't think that I dropped anything in the intake. all intake parts were still on the engine.

ZachSpazz

I don't know why the engine seized, unless you dropped something into it. Were you reverse-rotating the engine? Maybe a seal jammed against the rotor housing, and stopped the movement of the rotor assy. I doubt that would be the problem, as I've reverse-rotated the engines on my RX-7s many times, by parking the cars on hills, while in gear, and failing to set the e-brake correctly.

Weirder things have happened though. I suppose you could look in the exhaust ports and see if there's anything in there, or you could just take it apart.

rx7raca

its always fun to do a rebuild

(Porting..hint..hint)

SureShot

The good news: You only have to rebuild it once..

yearrgh

It's supposed to be torqued to 328 ft/lbs. I used the starter to loosen it while it was still in the car. Doesn't help you now, but next time I'd do it that way.

fong

iTrader: (77)

help!!!!!!!!
my shaft is not moving at all directions. what does it mean? bearing came out? I just borrowed a eletric impact gun yesterday, still doesn't work. not sure enough torque on the impact gun?

what can I do now? can I still disassemble the motor? like from the back?

yearagh, wonder if you can come take a look at it since you are so close.

thanks

fong

iTrader: (77)

hi, guys, I finally got it out. here is what I done.

I started take it apart from the rear. but I was stuck after I took out the rear rotor housing, cuz the e-shaft won't rotate. well, I tried it with my elec impact gun, it rotated, but the bolt didn't come out. I kept trying the impact gun, with WD40 spray. after about 10 times, and I was about to give up, and the damn bolt came out, just like magic. I was so happy.

when I carefully took out the middle housing, I found the the carbon deposits is the main reason that I can't rotate the engine. I guess they came out from the rotors when I moved the engine around, up and down.

thanks for all the helps