Engine stop rolling - Page 15

SD1too · 2nd January 2013, 09:21

Yes, but in your posting 137 the photographs show the cam covers fitted. You cannot see the camshaft lobes! The camshaft cover needs to be removed so that you can align the cam lobes as Kaiser explained. I'm not sure that you've understood that. Also you have to test one cylinder at a time, rotating the engine by hand in between.

If the compressed air is rotating the engine, reduce the pressure. You only need enough to detect a leak.

Are you happy with English, or should I use Google Translate into French?

Simon.

SD1too · 2nd January 2013, 09:35

James,

In your post number 92, in photograph no. 2 your label "tappet?" is showing a cam lobe.

Simon.

kaiser · 2nd January 2013, 09:41

OK. I am not quite with you, I must admit. Are you talking about the front and rear cylinders/pistons?
If so, if you blow compressed air into the front cylinders, and it comes out the inlet manifold, then the inlet valves are bent. Is that the cylinders on which the belt had moved? Then it makes sense.

But please, make sure you understand this and you have done the test correctly!!!! before you decide on your next steps.

Don't worry, we will get there in the end!!

SD1too · 2nd January 2013, 09:47

Kaiser,

Looking at his photos in post 137 he is testing only the left hand bank (I doubt that he's attempted to remove the plugs on the r.h. bank). But I suspect that he is blowing compressed air into cylinders 1,3 & 5 without ensuring that the relevant valves are closed first.

What pressure of air did you use by the way?

Simon.

jymix · 2nd January 2013, 12:10

Wish me good luck

SD1too · 2nd January 2013, 13:07

Only if you tell me what you're going to do!

Simon.

mikes75 · 2nd January 2013, 13:16

wouldn't it be easier to get one of these?

http://www.ebay.co.uk/itm/Car-Petrol...-/110957506102

SD1too · 2nd January 2013, 13:56

Possibly Mike, but as James is following Kaiser's advice I'm trying to help him with that first. Also, if his pistons have hit some valves, then turning the engine on the starter motor is going to increase the damage. But it may come to that!

Simon.

jymix · 2nd January 2013, 14:36

Don't worry, I did the test correctly

Quote:

Are you happy with English, or should I use Google Translate into French?

j'utilise le traducteur de google

SD1too · 2nd January 2013, 14:39

And ....?

Simon.

2nd January 2013, 09:21	#141
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,621 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Yes, but in your posting 137 the photographs show the cam covers fitted. You cannot see the camshaft lobes! The camshaft cover needs to be removed so that you can align the cam lobes as Kaiser explained. I'm not sure that you've understood that. Also you have to test one cylinder at a time, rotating the engine by hand in between. If the compressed air is rotating the engine, reduce the pressure. You only need enough to detect a leak. Are you happy with English, or should I use Google Translate into French? Simon. __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

2nd January 2013, 09:35	#142
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,621 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	James, In your post number 92, in photograph no. 2 your label "tappet?" is showing a cam lobe. Simon. __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

2nd January 2013, 09:47	#144
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,621 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Kaiser, Looking at his photos in post 137 he is testing only the left hand bank (I doubt that he's attempted to remove the plugs on the r.h. bank). But I suspect that he is blowing compressed air into cylinders 1,3 & 5 without ensuring that the relevant valves are closed first. What pressure of air did you use by the way? Simon. __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

2nd January 2013, 13:07	#146
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,621 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Only if you tell me what you're going to do! Simon. __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

2nd January 2013, 13:56	#148
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,621 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Possibly Mike, but as James is following Kaiser's advice I'm trying to help him with that first. Also, if his pistons have hit some valves, then turning the engine on the starter motor is going to increase the damage. But it may come to that! Simon. __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

2nd January 2013, 09:41	#143
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	OK. I am not quite with you, I must admit. Are you talking about the front and rear cylinders/pistons? If so, if you blow compressed air into the front cylinders, and it comes out the inlet manifold, then the inlet valves are bent. Is that the cylinders on which the belt had moved? Then it makes sense. But please, make sure you understand this and you have done the test correctly!!!! before you decide on your next steps. Don't worry, we will get there in the end!!

2nd January 2013, 12:10	#145
jymix Avid contributor MG ZT 190 - Legendary Optimist ;) Join Date: Nov 2012 Location: Abbeville Posts: 185 Thanks: 0 Thanked 0 Times in 0 Posts	Wish me good luck

2nd January 2013, 13:16	#147
mikes75 Regular poster rover 75 conny auto 2.5 Join Date: Nov 2012 Location: Dudley Posts: 89 Thanks: 0 Thanked 0 Times in 0 Posts	wouldn't it be easier to get one of these? http://www.ebay.co.uk/itm/Car-Petrol...-/110957506102

2nd January 2013, 14:39	#150
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,621 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	And ....? Simon. __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.