Crank pulley bolt

[Trevor]

Time for a dumb question, my crank pulley bolt is either rusted on or super tight and I can't get the damn thing to move. Before I start using big levers can anyone confirm if this a normal threaded bolt or a left hand thread?

 

[AndycruiserguyLomas]

Normal thread just tight. If you can get 3/4 drive equipment it may help as it has less flex.

Andy

 

[Trevor]

Cheers Andy, I've had my 3/4 set on it already with both feet on the breaker bar. I used a large screwdriver to lock the flywheel against block and made no impact on the bolt bit did lose the corner of the screwdriver tip.

My current thinking is bigger screwdriver and scaffold bar over the breaker bar, I've applied liberal amounts of PlusGas so time for round 2 at the weekend.

 

[silvercruiser]

can you use/gethold of/borrow a nice big windy gun on it?

 

[Trevor]

Not sure if there is enough space to get one in, could take the rad out I guess but I'm out in the sticks with only the wind in the trees. Maybe a bit of heat on the end might help it along?

 

[mrdelmonti]

Have you got much flatbar hanging around? You can always make up a proper flywheel locking tool, then tap the nut with a hammer while the 3/4 bar is on it.

ETA: Something like this http://www.ebay.co.uk/itm/Zetec-cam...Escort-Focus-Transit-Mondeo-etc-/290949111208, simple to make and more secure than a screwdriver. Had to make one up before for a mates Spitfire so don't know why I didn't think about it the other day!

 

[Ben]

I've always found the easiest way is to rest the ratchet handle against the chassis and then just give the ignition key a very quick turn, so the starter motor turns the engine over for a second.

 

[mrdelmonti]

I see what you did there Ben

 

[Trevor]

Hmmm, just a quick turn on dry engine?..........

 

[Ben]

I can understand that you might be nervous.

But basically turning the key as quick as you can off to on off should be enough to crack the nut loose.

 

[Crushers]

yes, that is the quickest and easiest method of crank bolt extraction.
but
use 3/4" drive, i just broke the 1/2" powerbar end off removing the one from a customers truck.
i ended up using a 15/16" wrench, set it against the frame NOT the steering main shaft.

touch the key, it might take 3 or 4 tries.
and
a dry engine will still have residue oil on the bearings
and
it is turning maybe a tenth of a turn or less.

 

[karl webster]

I wouldn't crank it.

I've had some really tight ones that wouldn't move with the air gun. A fabricated bracket is the best way in my opinion.