Step 8
What you remove and how you remove it at this stage has a big influence on the amount of effort required to to reassemble the engine.
First remove the crank timing lock tool, crank bolt and crank timing sprocket. Before removing the Crank seal housing decide if you want to try and retain / reuse the existing crank seal:
I had lots of trouble with this seal, all my previous experience has been with rubber seals. This crank seal is made of PTFE and behaves very differently to rubber. If it is slightly wrongly deformed it does not have the ability to recover like rubber.
Here are some links on the subject:
http://www.victorreinz.com/EN/Servi...-Oil-Seals-and-Their-Installation.aspx?region originally posted by Spike.
http://www.skf.com/uk/products/seal...on-general-industrial-applications/index.html originally posted by SCO
I have searched the manual and there is no guidance on reusing this seal however if the housing is carefully detached and removed square to the shaft then I suspect it may be possible to reuse the existing seal. The safe option though is to follow the manual and replace the seal using tool T10053.
At this point I was faced with a chain that was not positioned as in the manual:
The manual shows the crank sprocket timing mark at TDC and the chain timing links aligned with the timing marks on the crank and balancer sprockets. This took some thinking about and eventually I decided it did not matter if the crank mark was not at TDC or have the chain marks aligned providing there was the correct number of links between the crank sprocket timing mark and balance shaft timing mark.
Don't try to move the crank you will lock your piston against your valves.
I replaced the full set of sprockets, chain etc so everything had to come off. The manual offers no advice on removing the oil pump sprocket so I held the balance shaft from turning and loosened it the pump sprocket first. Next the tensioner was held back and the idler sprocket and chain removed. The balance shaft was rotated so that it could be locked with a spanner:
Balance shaft sprocket removed, tensioner removed and finally a big puller pulls the crank sprocket. Everything is now off the car.