Any tricks to getting front pulley hub bolt off?

FC Zach · 10-19-2011, 07:07 AM

Quote:

Originally Posted by RETed

It's more the threadlocker that on the length of the threads, coupled with the fact that bolt is sunk into the pulley boss with all that metal surrounding it keeps even the hottest torch from dissolving the threadlocker with heat.

-Ted

Yep, like a giant heat sink. It is hard to get it hot enough. Yeah I would just use or borrow an impact.

t_g_farrell · 10-19-2011, 07:50 AM

I had one engine that was really stubborn and already out on the floor. I took
some 2" x 2" angle iron and drilled holes and mounted it to the mounting bolts
on the front housing (12A) and then slipped a 6' iron pipe over my 25" breaker
bar. Before that I heated it up real good with a torch. Even then I had to
bounce on it hard a couple of times before it broke loose.

That bolt seems to gall together with the pulley mount hub and the shaft until
they are one! I've had more issues with those than any flywheel nut ever.

need RX7 · 10-22-2011, 09:23 PM

Finally got it. We used a longer pipe and I stood on the engine stand while my dad leaned on the pipe.

I pulled the front cover, breathed a sigh of relief when I confirmed I ordered the right gasket/o-ring combo, then promptly sliced my thumb open on the CAS drive gear

.

10-19-2011, 07:50 AM	#2
t_g_farrell Waffles - hmmm good Join Date: Aug 2008 Location: Huntersville, NC Posts: 757 Rep Power: 0	I had one engine that was really stubborn and already out on the floor. I took some 2" x 2" angle iron and drilled holes and mounted it to the mounting bolts on the front housing (12A) and then slipped a 6' iron pipe over my 25" breaker bar. Before that I heated it up real good with a torch. Even then I had to bounce on it hard a couple of times before it broke loose. That bolt seems to gall together with the pulley mount hub and the shaft until they are one! I've had more issues with those than any flywheel nut ever. __________________ 1980 GS stockport, Fat Nikki, RB Dual Facetfuel pumps, Holley regulator, RB Street port exhaust, 2GDFIS, MR2 MK I electric fans, 2G strut bar, relayed fans, lights and fuel pump, LEDs Project Fat Nikki Budget 12A rebuild Video setup < $30.00

10-22-2011, 09:23 PM	#3
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI Posts: 485 Rep Power: 18	Finally got it. We used a longer pipe and I stood on the engine stand while my dad leaned on the pipe. I pulled the front cover, breathed a sigh of relief when I confirmed I ordered the right gasket/o-ring combo, then promptly sliced my thumb open on the CAS drive gear . __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress.