cambelt change time

[handyjackdaniels]

Hi,

I,m in the process of changing the cambelt on my v6, along with a few more parts while most of the top half of the engine is dismantled!

Have got as far as removing the main belt, and reading a lot of members comments about removing the camshaft end cap seals and the fact they pop off or leak, plus the fact there is very little room to tap or hammer them back in!
I was going to leave them alone, but my query is how do i use the locking tools without removing the caps as the sprockets have moved slightly after removing the belt?

Also referring to the excellent thread by beinet1 and the procedure for fitting/adjusting the tensioner pulley states the sprocket bolt s need to be loose, again, some members state they didnt remove the bolts and not sure why the need to be to fit tensioner pulley?

Many thanks.Steve.

[SD1too]

Originally Posted by handyjackdaniels

... reading a lot of members comments about removing the camshaft end cap seals and the fact they pop off or leak ...

Hi Steve,

If you remove the original caps carefully by twisting whilst easing them out, taking your time and adding lubricant if required, they can be refitted afterwards. I did this on the LH bank and mine has not popped off or leaked.
New ones are such a tight fit that it's very difficult to drive them home fully and that's when they pop off or leak!

Originally Posted by handyjackdaniels

...the procedure for fitting/adjusting the tensioner pulley states the sprocket bolts need to be loose, again, some members state they didnt remove the bolts and not sure why the need to be to fit tensioner pulley?

If you're referring to the inlet camshaft sprocket bolts Steve, they don't need to be touched* either to replace the tensioner pulley or, in fact, when replacing the timing belt.
Most importantly, do you have the INA set-up procedure for the tensioner pulley?

Simon

* This should read "removed" which was your original question. Sorry.

[handyjackdaniels]

Originally Posted by SD1too

Hi Steve,

If you remove the original caps carefully by twisting whilst easing them out, taking your time and adding lubricant if required, they can be refitted afterwards. I did this on the LH bank and mine has not popped off or leaked.
New ones are such a tight fit that it's very difficult to drive them home fully and that's when they pop off or leak!

If you're referring to the inlet camshaft sprocket bolts Steve, they don't need to be touched either to replace the tensioner pulley or, in fact, when replacing the timing belt.
Most importantly, do you have the INA set-up procedure for the tensioner pulley?

Simon

Thanks for the quick reply Simon,
I'll try easing the caps off as you explained( fingers crossed).

I do have the INA procedure for tensioner pulley, that was the reference from beinet1 thread i mentioned, it states to assemble the pulley need to fit locking tools, which i have got but not fitted yet, fit crank timing pin(done), fit tensioner plunger and slacken camshaft bolts.

[SD1too]

Originally Posted by handyjackdaniels

I do have the INA procedure for tensioner pulley, that was the reference from beinet1 thread i mentioned, it states to assemble the pulley need to fit locking tools, which i have got but not fitted yet, fit crank timing pin(done), fit tensioner plunger and slacken camshaft bolts.

Hi Steve,

I've just checked my paper copy of the INA instructions and the camshaft sprocket bolts are not mentioned. Can you post the reference you've seen please?

In order to set-up the tensioner pulley the belt must be fitted and so the sprocket bolts must be in place and tight. There is no good reason to slacken them.

Simon

[handyjackdaniels]

This is the procedure i downloaded from beinet 1 thread, there is a note on page 1.
Steve.

[dave lincs]

I would not advise reusing the camshaft end caps as I have seen what can happen when they fall out

[SD1too]

Originally Posted by handyjackdaniels

This is the procedure i downloaded from beinet 1 thread, there is a note on page 1.

Thanks Steve, I see the reference now. I've dug out my notes and I removed the camshaft sprockets because I wanted to see how the "floating" mechanism worked (it's invisible from the front) but otherwise there's no reason to undo the sprocket bolts to set the belt tension.

I then refitted the sprockets with the bolts hand tight, laced the belt with locking tools in place and set the tensioner pulley according to INA's instructions. Finally tighten the sprocket bolts to the specified torque before removing the locking tools. But there really is no advantage in loosening the sprocket bolts as the toothed wheel will move about 15˚ anyway and loosening them won't increase this.

Simon

[trikey]

I guess I might need to get the timing tools out for this one then..