A raft of engine rebuild Q's

["Ben Channard" <zeroid@hotmail.com>]

	I'm the new owner of an old 8V JH and want to keep rebuild costs to a 
minimum but I don't want to be penny wise and pound foolish. When I called a 
machine shop and talked to the owner, I realized that I have no idea what to 
ask for since I don't know the jargon nor how to prioritize the myriad 
services.


1.   What are the machine shop essentials for a rebuild?  Magnafluxing for 
the head, block, and crank? (this is to check for cracks, right?)  Hot 
tanking to clean the oil and water passages?  Checking the deck height?  
Honing the cylinder walls?

2.  What is knife-edging of the crank?  What about micropolishing?

3. Is an x-angle valve job necessary?  What should "x" be?  Is hand lapping 
an alternative to having the valves and seats machined?  I gather that the 
valve guides and seals are must replace items but what about the springs and 
valves themselves?  Should the valve springs be tested and reused or 
replaced with new ones?  Can valves that aren't burnt be reused safely?

4.  Should all of the cam, crank, and rod bearings be replaced and not 
reused?

5.  Is a thread chaser the same as a tap?  Normally will the machine shop 
clean all the threads or is this something I'd do myself?  And if the 
latter, how many different thread chasers do I need for an 8V block and 
head?

6. Are freeze plugs and galley plugs the same thing?  Should they be removed 
prior to hot tanking for a more thorough cleaning?

7.  Are VW blocks painted from the factory or is the dark color some type of 
oxidation?

	 Are there any recommended online resources for engine rebuilding?  I have 
the Bentley, Chiltons and Haynes.  Thanks for anything.  benton-----



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