Difference between revisions of "Diesel Engines Cyl Head re-fitting"
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==Head Gaskets== | |||
'''Simon Baxter:''' | |||
There are 3 thicknesses. | |||
GSF only sell the thickest, the 3 notch. | |||
VW sell them, but they are back ordered from Germany, and very expensive. | |||
I'm slowly building up a stock of gaskets and I'm expecting the next delivery from Elring in the next day or so, but I am now away on holiday till the 11th of August. | |||
I have on order, 1,2 and 3 notch head gaskets so the job can be done properly. (Did you know you have to measure the piston projection from the block to determind what gasket to use?) | |||
.66-.86mm 1 Notch (1.4mm thick) | |||
.87-.90mm 2 Notch (1.5mm thick) | |||
.91-1.02mm 3 Notch (1.6mm thick) | |||
==Cylinder-head bolts== | |||
These are 'stretch' bolts, torqued up in tow stages then 'set' using a given angular rotation (90 degrees, 90 degrees usually) | |||
==Tips== | |||
'''HarryMann:''' Some useful tips here, from General Tools and Techniques - Thread-chaser | '''HarryMann:''' Some useful tips here, from General Tools and Techniques - Thread-chaser | ||
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'''Andy Simpson:''' The bottom bolt in the picture is cut-off and slotted - two of these are useful for locating the head on engines that are fitted on the slant, such as the VW T25 diesels - stops head sliding off the gasket while fitting in situ. (Make sure you don't screw them in too far, so that you can't get them back out) | '''Andy Simpson:''' The bottom bolt in the picture is cut-off and slotted - two of these are useful for locating the head on engines that are fitted on the slant, such as the VW T25 diesels - stops head sliding off the gasket while fitting in situ. (Make sure you don't screw them in too far, so that you can't get them back out) | ||
==Other things== | |||
Revision as of 22:36, 31 July 2008
Head Gaskets
Simon Baxter: There are 3 thicknesses.
GSF only sell the thickest, the 3 notch.
VW sell them, but they are back ordered from Germany, and very expensive.
I'm slowly building up a stock of gaskets and I'm expecting the next delivery from Elring in the next day or so, but I am now away on holiday till the 11th of August.
I have on order, 1,2 and 3 notch head gaskets so the job can be done properly. (Did you know you have to measure the piston projection from the block to determind what gasket to use?)
.66-.86mm 1 Notch (1.4mm thick)
.87-.90mm 2 Notch (1.5mm thick)
.91-1.02mm 3 Notch (1.6mm thick)
Cylinder-head bolts
These are 'stretch' bolts, torqued up in tow stages then 'set' using a given angular rotation (90 degrees, 90 degrees usually)
Tips
HarryMann: Some useful tips here, from General Tools and Techniques - Thread-chaser
Andy Simpson: The bottom bolt in the picture is cut-off and slotted - two of these are useful for locating the head on engines that are fitted on the slant, such as the VW T25 diesels - stops head sliding off the gasket while fitting in situ. (Make sure you don't screw them in too far, so that you can't get them back out)
