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[Bent valve]

Hope you have not got more than 2 teeth out else good night 24 valves  :-?

I dont think it would be running if it had 24 bent valves

[TheBoy]

... it simply cannot be done without it.  ....

It can be done, just not very accurately, and it's not easy to see the mark on the crank. 

No, it can't.  Its luck if the tensioner is anywhere near correct.

[Darth Loo-knee]

have I done any damage? I should have used the correct locking kit I know now- but for £65 for something i would use once seemed a lot of money to just leave on a shelf once used . Just had a new born and the cam kit and pump just cost me enough!

Ten times cheaper though if you have bent your valves  :-?

How many times must it be said on this forum " you need to use a cam locking kit!"

[TheBoy]

Hope you have not got more than 2 teeth out else good night 24 valves  :-?

I dont think it would be running if it had 24 bent valves

Unlikely to  have ruined all 24 - that would have to be a couple of teeth out on all 4 cams.


First port of call is to retime it using the correct timing kit.

[Andy B]

... it simply cannot be done without it.  ....

It can be done, just not very accurately, and it's not easy to see the mark on the crank. 

No, it can't.  Its luck if the tensioner is anywhere near correct.

bolox  :-? :-?. there have been plenty that have been done without, just not accurately.
What's the tensioner got to do with the timing?  :-? :-? :-?

[Darth Loo-knee]

Hope you have not got more than 2 teeth out else good night 24 valves  :-?

I dont think it would be running if it had 24 bent valves

I have driven an Omega with bent valves for about 60 miles. .

[TheBoy]

... it simply cannot be done without it.  ....

It can be done, just not very accurately, and it's not easy to see the mark on the crank. 

No, it can't.  Its luck if the tensioner is anywhere near correct.

bolox  :-? :-?. there have been plenty that have been done without, just not accurately.
What's the tensioner got to do with the timing?  :-? :-? :-?

The tensioner has absolutely everything to do with the timing. Thats why the tensioner has to specifically set at TDC

If the tensioner is wrong, its easy for the rest of it to end up more than the critical 2 teeth out, esp if it was guessed in the first place (so potentially 1 or 2 teeth out to start with).



What we certainly dont need is people saying it can be done without the kit. It can't. Somebody telling DTC you can may potentially have caused him several hundred pounds of damage 

It cannot be done properly. It cannot be done accurate. It cannot be done safely.

[Bent valve]

Hope you have not got more than 2 teeth out else good night 24 valves  :-?

I dont think it would be running if it had 24 bent valves

I have driven an Omega with bent valves for about 60 miles. .

Not 24 bent valves though... surely?

[TheBoy]

Hope you have not got more than 2 teeth out else good night 24 valves  :-?

I dont think it would be running if it had 24 bent valves

I have driven an Omega with bent valves for about 60 miles. .

Not 24 bent valves though...

Depends how bent I guess - might still get enough compression if they've just clipped...

[Darth Loo-knee]

Hope you have not got more than 2 teeth out else good night 24 valves  :-?

I dont think it would be running if it had 24 bent valves

I have driven an Omega with bent valves for about 60 miles. .

Not 24 bent valves though... surely?

Perhaps not 24. . .  But the Cambelt had broken and it was running on 3 cylinders. .  That means half of the valves were bent. .   

[Andy B]

.....
The tensioner has absolutely everything to do with the timing. Thats why the tensioner has to specifically set at TDC .....

You're wrong.  :-? You can get the belt on correctly & not get the tensioner set right, conversely everything could be a mile out but have the tensioner set correctly. The tensioner is doing just that, holding the slack side of the cam belt run.
The tensioner has sod all to do with the accuracy of the timing.

How are you checking for top dead centre, the car doesn't have makings for it.

[TheBoy]

.....
The tensioner has absolutely everything to do with the timing. Thats why the tensioner has to specifically set at TDC .....

You're wrong.  :-? You can get the belt on correctly & not get the tensioner set right, conversely everything could be a mile out but have the tensioner set correctly. The tensioner is doing just that, holding the slack side of the cam belt run.
The tensioner has sod all to do with the accuracy of the timing.

How are you checking for top dead centre, the car doesn't have makings for it.

Nope, disagree entirely.

TDC is marked, albeit it poorly. But thats the point of the cranklock.

[Kevin Wood]

The tensioner has absolutely everything to do with the timing. Thats why the tensioner has to specifically set at TDC

Agreed. Exact relative positions of the cams and crank determine where the slack in the belt is located, since the valve springs will be acting against the cams and influencing the belt tension.

Next time you've used the kit to correctly time the belt, watch what happens to the tensioner markings as you turn the engine over. All over the place. They are correct for one position of the crank and cams only.

Kevin

[Andy B]

The tensioner has absolutely everything to do with the timing. Thats why the tensioner has to specifically set at TDC

Agreed. Exact relative positions of the cams and crank determine where the slack in the belt is located, since the valve springs will be acting against the cams and influencing the belt tension.

Next time you've used the kit to correctly time the belt, watch what happens to the tensioner markings as you turn the engine over. All over the place. They are correct for one position of the crank and cams only.

Kevin

So how does a correctly set tensioner have any bearing on where the belt is relative to cams & crank?

[Andy B]

....

Read Kevins post mate 

I've read it. It's not right either.

Try setting the cam belt in the WRONG place (obviously only a small margin of error is possible unless you've deep pockets) Set the tensioner correctly & watch the tensioner - it'll do exactly the same thing ie 'be all over the place'. It moves because the cank is taking up tension ofn the rest of the belt & the tensioner is doing what it knows best .......... tensioning.