Borg Warner 178063 Turbo??(3406B)

As Smokin Cat said you really need two people to check the timing, everybody has their own oppinion on timing, but on the B's I like them time top dead center, advanced timing is a good way to crack pistons. When I pin time I have someone hold pressure on the bolt at flywheel and I hold pressure on the pump pin while turning engine clockwise looking from front, sometimes you get lucky and find it's in time and don't have to pull nose cone. If both pins don't fall at the same time then do like Smokin Cat said.

 

Yes it will be at TDC.

 

I do my timing by myself but I have a tarp strap to hold pressure on the bolt for the flywheel, then hold pressure on the pump pin as I'm turning it over.

IMO I don't think you'll have to worry about cracking a piston unless you go crazy with advancing the timing. When you go to far you'll hear it in the motor, it'll rattle more than normal.

 

The tarp strap is a good idea, I'd never thought of that. When I say cracking pistons I'm talking the little hairline cracks you usually see when you lift the head, and no a little advance might not hurt anything and it seems everybody wants to do it but alot of the big horsepower guys even recommend retarding the timing, but I found on my 7FB TDC works best since it's already at 24* which is the fastest timing of any of the B's or C's.

 

Amazing what you come up with when you have no help.

 

Git ya a flywheel turning tool. Then you are right there to push in the bolt instead of at the damper.


What the best CAT man in the country I know told me is retarding fuel timing let's the squirt all burn quicker and hotter and hits the piston harder which causes cracks and warping from heat. This is why you might get a tad more boost when you ######.

Advancing lets the fuel start burning sooner while the piston is more BTDC which is easier on the pistons and burns cooler over a longer duration.

More advance = more NOx, more retarded = more PM which is why gubbamint control NAZI engines are more retarded. They want less NOx.

I'm not talking newer motors here just older CAT Mech Fuel Inj.

EDIT here ---

WOW! talk about political correctness run amock, I can't even us the word RE - TA - RD as a verb here! Holy crap! So what am I supposed to say, give the fuel timing Cerebral Palsy? It doesn't make any sense!

Sad state our country is in, people are just plain F-ed up.