timing belt broke at 55 mph

[BullShifter]

It's been so long since I messed with my '91 I forgot and there aren't too many customer's bringing them in any more. Good catch!

[popdue73]

That sounds like a great idea. I have the impact gun. I'll try your idea. Didn't really want to mess with the flywheel anyway.

[Tony]

I've never been able to get a good enough bite on the flywheel to break a crank pulley bolt loose. Try the impact first, then go to the other method. The newer pulleys are nice if you have the tool, but does suck you have to buy a special tool for it, because if you don't have an impact that can do it, you have no way of holding the pulley w/o the tool.

[BullShifter]

I always try an impact first and it seems like I need to use the holder with a breaker bar and a pipe. We have strong guns too.

[Tony]

Yea, it takes a very stout impact to be able to break them loose most of the time.

[BullShifter]

That it does. Our 3/4" gun can't break them loose some times. Some strong robots......

[Tony]

Engine rotation doesn't help.

[BLU CIVIC]

you can tell the is a D series conversation b/c if it were a B series we'd be talking about what engine to buy

[Tony]

Why? A B series isn't an interference engine, atleast the LS isn't. The clearance is close enough that if you have it spinning fast enough, it can stretch enough to hit a valve, but under normal circumstances, its perfectly fine...hell mine snapped at 80mph atleast and was perfectly fine.

[Moppie]

Originally Posted by Tony

Why? A B series isn't an interference engine, atleast the LS isn't. The clearance is close enough that if you have it spinning fast enough, it can stretch enough to hit a valve, but under normal circumstances, its perfectly fine...hell mine snapped at 80mph atleast and was perfectly fine.

I think he meant a real b series, not a granny one



With re getting the crank pulley off, has any tried putting the car in gear and having some one stand on the brakes?

[Tony]

Call it what you wish, but I can replace mine twice for the price of the new ones, or make a D with a good build for the price of some of the newer B series...not of fan of hype.

[popdue73]

I couldn't get the crank pully off today. I used an air impact of 260LBs at 90 psi and it never budged or moved. I used the rod, nut and bolt tech. to brace the pully against the ground like yall said to try and the gun couldn't get it loose. Used liquid wrench pen. spray too. Used a breaker bar 1/2 inch braker bar and nothing. The Nut on the cank is starting to wear. If I strip that 17mm nut then I fooked. Do yall think that a stronger Impact gun would just get it off? Like a 300+ . I had the gun on a 100ft airline. Think maybe it's not 260LB? Its a Huskey From Home Depot. $50

[BullShifter]

Breaker bar and a good 17mm six point socket is the cheapest option. Our 3/4" gun that claims to have 850 ft. lb. can't break them loose some times. Shocking with a breaker bar is the way I get them loose. Penetrating isn't going to do squat! It's not the psi that matters as much as the volume. The bigger the air hose the better!

[popdue73]

Yeah starting to understand. I good breaker bar and a quality 17mm socket. My breaker bar is a 1/2 drive. Should I go 3/4?
I used a 2.5 foot piece of all-thread to brace the pully against the ground. a Think I should try a smaller piece and brace it somewhere against the car itself, like the wheel well or? Just sucks. I want the fooker off!

[Tony]

Its a mix bullshifter, psi doesn't need to be cranked up as high as you possibly can get it, but its not always a bigger hose you need either. Impacts have a sweet spot with psi, most will spin faster with a lower psi than with it maxed.

Anyways, the breaker bar is the best option. Get a cheater pipe if you need, but don't put constant pressure on it, shock it. Putting constant pressure is what will usually cause the bolt to round off like what your saying.