msodo
New member
Update: new crank oil seal is in place. Is it a good idea (or not) to use lock thread on crankshaft bolt?
Technical Crankshaft centre bolt: left or right handed?
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Technical Crankshaft centre bolt: left or right handed?
yes use
msodo
New member
Could anybody confirm the torque for the crank bolt?
stage 1 20 Nm
stage 2 angle tighten further 90 degrees
that's from Haynes, it don't seen enough some how
stage 2 angle tighten further 90 degrees
that's from Haynes, it don't seen enough some how
Last edited:
msodo
New member
Hi guys, today I put everything back, started the engine just to find out that there is no pressure in cylinder no 2. I am totaly baffled as before changing the head gasket all 4 cylinders were fine. Any ideas? Stuck valve, leaking gasket? Timing? Is there any way to diagnose the problem without taking the cylinder head off the car? Please let me know, any suggestion would be highly appreciated.
msodo
New member
Update: WARNING !!!
About 2 days ago when doing the timing I have somehow forgot to tide the camshaft pulley bolt. Without being aware about this I have slowly, very slowly turned the engine by hand until I felt resistance when the valve hit (touched) the piston. Then I stopped. As I have never heard about bent valves when the engine is turned by hand I didn’t worry too much at the time. Took off the extension head (new gasket in place), put back the locking tools, set the timing correctly, put the other bits back in their place and fired the engine.
BIG SURPRISE!
The engine was running in only 3 cylinders. There was absolutely no compression on cylinder no 2. The compression gauge needle would not even move a millimetre.
Took off the extension head to find out that on cylinder no 2 the exhaust valves were sitting lower than the others. Once I had the cylinder head off the car I could easily see the exhaust valves were bent.
So, if you do any work on timing, be extremely careful, check twice that everything is done correctly and the most important don’t rush things as I did.
I thought you can never bend valves just by turning the engine by hand but it seems that it is very likely.
Are these made of cheese? I don’t want to imagine the damage if timing belt or any other part of the timing chain fails while on the motorway.
About 2 days ago when doing the timing I have somehow forgot to tide the camshaft pulley bolt. Without being aware about this I have slowly, very slowly turned the engine by hand until I felt resistance when the valve hit (touched) the piston. Then I stopped. As I have never heard about bent valves when the engine is turned by hand I didn’t worry too much at the time. Took off the extension head (new gasket in place), put back the locking tools, set the timing correctly, put the other bits back in their place and fired the engine.
BIG SURPRISE!
The engine was running in only 3 cylinders. There was absolutely no compression on cylinder no 2. The compression gauge needle would not even move a millimetre.
Took off the extension head to find out that on cylinder no 2 the exhaust valves were sitting lower than the others. Once I had the cylinder head off the car I could easily see the exhaust valves were bent.
So, if you do any work on timing, be extremely careful, check twice that everything is done correctly and the most important don’t rush things as I did.
I thought you can never bend valves just by turning the engine by hand but it seems that it is very likely.
Are these made of cheese? I don’t want to imagine the damage if timing belt or any other part of the timing chain fails while on the motorway.
