Technical Cam Pulley Locking Tool

[Paul106xsi]

Hi All,

I'm new to the site and Fiat ownership. I've just bought a seicento off ebay with what looks to be a dodgy cam seal. I'm looking to take the camshaft out and fix this tomorrow but am struggling to find information on how to lock the pulley in place, so I can remove it. It's been a long time since I've done any work on anything with less than 16v so all the locking tools I own are pretty useless for this. Any help would be much appreciated.

Thanks

 

[ycming]

You don't need one, just need to follow the timing mark, as follow.



Also non-interference engine .

Ming

 

[Paul106xsi]

Thanks for the reply, but if I don't lock the pulley how would you ever separate it from the camshaft? Everytime I try to loosen it it will just spin the whole cam won't it?

 

[portland_bill]

Take the cam cover off. The cam should have a hexagon cast onto it, to hold with a spanner. 27mm I think, but I'm not about to remove mine to check. (Sorry)

Have a look at this thread, https://www.fiatforum.com/grande-punto-guides/237966-1-2-8v-evo-2-engine-cam-belt-replacement.html
Scroll down until you find the pic of the cam being held. It says 24mm spanner. It is correct, better than my memory.

 

[ycming]

Thanks for the reply, but if I don't lock the pulley how would you ever separate it from the camshaft? Everytime I try to loosen it it will just spin the whole cam won't it?

May not be the best way, in gear and put brakes on .

Ming

 

[portland_bill]

May not be the best way, in gear and put brakes on .

Ming

This stresses the cambelt. So you would have to use the old belt to tighten the pulley when refitting, then fit the new belt. If disturbed to replace the seal, you will need a new belt anyway.

 

[fingers99]

On the 8v motors, the easy (and quick) way is (cam cover off) just to insert a bar through the holes in the cam. Pad it where it meets the top of the head, have at it.

Don't stress the belt. But the biggest danger of using the belt as a locking tool is that you sheer off the faux woodruff key from the pulley(s).

 

[Paul106xsi]

Brilliant, thanks for all your help folks! That's tomorrows job sorted!

 

[Paul106xsi]

Now I've started this I'm thinking it may be the crank oil seal instead. I've got the alternator pulley off but can't get the crank sprocket to undo. I notice it's got 3 little holes, is there a way to use these to hold it in place?


Thanks

 

[fingers99]

You could put a couple of old bolts in the holes, use these to mount a bar to lock the pulley.

A far safer way is to use a locking tool on the flywheel.

You need the Cinq Haynes.