Crank Pulley

[HSH]

Does anyone know the spacing between the M4 holes in the crank pulley? (presuming the midpoint between the two is the crank bolt hole)

Need to make a tool to pull mine off, however I'm 140 miles from the engine.

Thanks

 

[bloke]

42mm rings a bell.

 

[hipwell]

Do even the non keyed ones get stuck on? I thought they were floating on the clips?

 

[JamesBryan]

Do even the non keyed ones get stuck on? I thought they were floating on the clips?

Pretty tight yeah, interface fit pretty much.

 

[bloke]

they tend to rust on.

 

[JamesBryan]

they tend to rust on.

A bit of grease on the crank before refitting works a treat i heard ?

 

[bloke]

A bit of grease on the crank before refitting works a treat i heard ?

Shhhh, trade secret ?

 

[HSH]

I’m thinking another option is heating the gear with a small blow torch. Used this method when assembling an engine previously, just in reverse.

 

[bloke]

pointless heating it, will just pull off easily.

 

[HSH]

I agree but it doesn’t, there’s a bead of solid loctite between the snout and pulley. I’ll slot the holes for a +/- 42mm fit. Cheers for that

 

[bloke]

Should still come off easy with a puller, I've had them with loctite on that have pulled fine. Unless it's the bearing stuff it should pull ok. Just use decent socket cap bolts and don't screw them all the way in, wind them in and back them off half a turn, if you can get some with a shoulder on, will end up too long but at least if the worst comes to the worst and one snaps you can get it out of the pulley easilly.

 

[hipwell]

Should still come off easy with a puller, I've had them with loctite on that have pulled fine. Unless it's the bearing stuff it should pull ok. Just use decent socket cap bolts and don't screw them all the way in, wind them in and back them off half a turn, if you can get some with a shoulder on, will end up too long but at least if the worst comes to the worst and one snaps you can get it out of the pulley easilly.

If I'm changing my cambelt in a month or so and it is stuck on, do I actually even need to worry about it? I know that the belt is supposed to be turned over a few times before finalising, but could I just tighten the cams back up and turn the entire engine over a few times to equalise the tension, then if required, slacken the Cams again and check timing?

 

[bloke]

if it's stuck it's pretty much the same as having a keyed pulley.

 

[JamesBryan]

If I'm changing my cambelt in a month or so and it is stuck on, do I actually even need to worry about it? I know that the belt is supposed to be turned over a few times before finalising, but could I just tighten the cams back up and turn the entire engine over a few times to equalise the tension, then if required, slacken the Cams again and check timing?

Yeah pretty much the same as having a Mégane crank pulley which is keyed.

 

[NorthloopCup]

Hammer + blunt prybar + whack = pulley spins and becomes free and easy to remove. ??‍♀️