M104 crank lock tool - PeachParts Mercedes-Benz Forum

speednjay · #1 04-03-2019, 12:05 AM

Quote:

Originally Posted by jhodg5ck

How high does your compressor go?

Not to say I officially encourage this, but you can hold the pressure switch closed and typically run them up a Lot higher. Amazing what another 40-50 psi will do for you. Make sure you have a fresh few drops of oil in the gun as well ..helps!

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10 gal Harbor freight compressor.. sopposely 5.8 cfm at 90psi. Tops out at 125psi. I did bump it up to 100psi just to see if I could tap it harder but the nut wasn’t flinching

jhodg5ck · #2 04-03-2019, 09:43 AM

Quote:

Originally Posted by speednjay

10 gal Harbor freight compressor.. sopposely 5.8 cfm at 90psi. Tops out at 125psi. I did bump it up to 100psi just to see if I could tap it harder but the nut wasn’t flinching

Oh...well, idk if that would ever really have enough ass ...

I'll run the compressor up to 185-200 psi when I have a stubborn nut/bolt what have you. We run at 150-160 normally. I'd wager that double your air pressure would likely do the trick.

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speednjay · #3 04-03-2019, 10:05 AM

Quote:

Originally Posted by jhodg5ck

Oh...well, idk if that would ever really have enough ass ...

I'll run the compressor up to 185-200 psi when I have a stubborn nut/bolt what have you. We run at 150-160 normally. I'd wager that double your air pressure would likely do the trick.

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I’ll turn it up full blast and see what happens

Zulfiqar · #4 04-03-2019, 05:03 PM

I found the harbor freight 1000 lb/ft electric impact will remove the most stubborn of fasteners if you have the space to use it.

speednjay · #5 04-03-2019, 11:45 PM

I tried maximum air pressure and it wasn’t enough. I’ll grab the electric impact and see how that goes

ytech15 · #6 04-04-2019, 10:39 AM

That bolt is torqued anywhere between 370-400 nm from the factory, I've had luck using my Milwaukee 1/2 impact although I had to pull my 3/4 air impact a few times and in a few extreme cases I had to use the factory lock tool and a very very long 3/4 breaker bar.

speednjay · #7 04-06-2019, 01:38 PM

The hf electric impact didn’t phase it. I put the crank lock tool on then used the 2 foot breaker bar. Came right off. Should’ve just did that in the first place.

Now do I need a puller to get the crank pulley off? Or does it pry off. I don’t want to damage the harmonic balancer