timing chains

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ovalandrover

ovalandrover

Well-Known Member
Posts
1,610
I have got the front cover off and engine set at TDC firing on no 1 and went to check the bright links on the lower chain lined up with the marks on the on the crank sprocket and the fip sprocket but they are not aligned. I havnt turned the engine over yet to see if at some stage they do line up and im wondering if they should be aligned on TDC no 4.
The engine was running perfectly when i started on the job but might have slipped when i was turning it over.
Does anyone know the timing procedure to get the pump injecting on the right cylinder.
Have looked in rave and the only thing i can find is lining the bright links up on the sprockets.
 
ovalandrover said:
I have got the front cover off and engine set at TDC firing on no 1 and went to check the bright links on the lower chain lined up with the marks on the on the crank sprocket and the fip sprocket but they are not aligned. I havnt turned the engine over yet to see if at some stage they do line up and im wondering if they should be aligned on TDC no 4.
The engine was running perfectly when i started on the job but might have slipped when i was turning it over.
Does anyone know the timing procedure to get the pump injecting on the right cylinder.
Have looked in rave and the only thing i can find is lining the bright links up on the sprockets.
Click to expand...

Links MUST aligned on TDC number 1 firing. Both number one cam lobes upwards. Do you have the locking pin properly in place or is it just jammed on a timing pip? You will need the cam setting tool to refit chains hope you have one. Always turn engine in a clockwise direction. Apart from a little wriggle back and forth to place timing pin.
 
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wammers said:
Links MUST aligned on TDC number 1 firing. Both number one cam lobes upwards. Do you have the locking pin properly in place or is it just jammed on a timing pip? You will need the cam setting tool to refit chains hope you have one. Always turn engine in a clockwise direction. Apart from a little wriggle back and forth to place timing pin.
Click to expand...

I have got the head off and can see that it is at tdc but moved the crankshaft to undo the bolt and moved it back to tdc so chains might have slipped and the head is off but set up to firing on no1 as No six cam lobes are rocking.
Is the mark on the crank socket just i tooth past the keyway because that where it seems to be on this one and the key way is at approx 75 degrees past tdc
 
ovalandrover said:
I have got the head off and can see that it is at tdc but moved the crankshaft to undo the bolt and moved it back to tdc so chains might have slipped and the head is off but set up to firing on no1 as No six cam lobes are rocking.
Is the mark on the crank socket just i tooth past the keyway because that where it seems to be on this one and the key way is at approx 75 degrees past tdc
Click to expand...

If head is off it doesn't matter. Just insert lock pin make sure engine cannot turn in either direction. That will put crankshaft mark in correct position. Camshaft on number one should be flatish at top forming a V from top of tappet barrel. Fit cam holder to lock it in position. There maybe two marks on pump sprocket one with 4 next to it and one with 6 next to it use 6 for setting bottom chain. Have you got the tools you can't guess this.
 
are you saying that the lock pin is not exactly at tdc?because i can set up the tdc with a dial gauge and get it exact but will put the lock pin in
The fip sprocket has only one mark on it
 
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ovalandrover said:
are you saying that the lock pin is not exactly at tdc?because i can set up the tdc with a dial gauge and get it exact but will put the lock pin in
The fip sprocket has only one mark on it
Click to expand...

You MUST use the crank locking pin to set the bottom chain on it's marks and when setting the camshaft timing. The camshaft, MUST be in the correct relation to number one firing when head is replaced. Leave the lock pin in place until the engine is rebuilt. Only remove it when you have to turn engine to time pump.
 
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When you are looking to fit lock pin be aware there is a CPS pip 40 degrees BTDC and one 20 degrees ATDC. The timing pin hole is between these pips. It maybe rusted up and you may not be engaging into it. If you are snagging the pip ATDC engine cannot be turn clockwise but can be turned anticlockwise. With locking pin correctly positioned engine should be solid in both directions. Make sure this is so before doing any chain fitting or reassembly. You may need to grease the pin up and wriggle it into the hole.
 
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On looking at the bright links and the marks it seem to be about 4 teeth out and i am wondering if someone has timed it up 60 degrees out and using a different outlet for NO 1 and moving the injector pipes around.
the No 1 pipe is the top pipe at about 1 oclock looking at the pump from the rear does this seem to be about right as i have no other vehicle that i can compare with.
WHich is the No 1 outlet and is it marked anyway on the pump? I cant find anything in Rave but perhaps im not looking in the right place
thank you for the information so far wammers
 
ovalandrover said:
On looking at the bright links and the marks it seem to be about 4 teeth out and i am wondering if someone has timed it up 60 degrees out and using a different outlet for NO 1 and moving the injector pipes around.
the No 1 pipe is the top pipe at about 1 oclock looking at the pump from the rear does this seem to be about right as i have no other vehicle that i can compare with.
WHich is the No 1 outlet and is it marked anyway on the pump? I cant find anything in Rave but perhaps im not looking in the right place
thank you for the information so far wammers
Click to expand...

Unless they have done some serious bending, pipes can't be out. Firing order is 1 5 3 6 2 4. Pipes have a logical fit and can't be changed around easily. Just set the new chain with lock pin in place and go from that. With head off camshaft can be turned to number one firing then refit and set cam timing with tool. You are making things far more complexed than they need to be. You MUST have lock pin in at all times.
 
I will bring the pin and bits over tomorrow
As wammers said crank pin in at tdc is your starting point
Crankshaft set with tool and the notch on the pump sprocket some have two marks four cylinder and six some have one if one I presume its just for the six as with your car
Yep pin in as wammers has said if you put pin in and it can turn backwards its not in its hole and caught on the the crank position sensor pip

Your supposes turn engine over and when just before. Tdc and the number one crankshaft lobe is sticking upright well just before its upright push pin in its hole turn a little further and you should feel it slip in if it didn't slip in and won't turn its caught on said pip Careful or you might damage it .
 
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