Tuesday, November 2, 2010

Day 9 VR6 Engine Build - Engine Head

I picked up the head from the machine shop a few weeks ago hadn't had too much time to really do anything on the engine lately.  This past weekend I was able to pick up where I left off.  The only thing left to do was gasket match the head itself.  Ideally I would have liked to do that before the new valves and guides were in, but it wasn't an option so I just had to take extra precautions when porting the runners.  I unwrapped the head from it's plastic bag and used newspaper and shop rags to shove down in the head to prevent aluminum shavings from getting past the valves and guides.   I taped of the remaining open areas of the head as not to get any debris in the head.  

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This is the intake side, not too much material needs to be removed here.  You can see the scribe marks of the gasket.  

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Here is the exhaust side, there is a considerable amount of material that needs to be removed on this side of the head

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With the head ported to match the intake and exhaust manifolds the engine should breath considerably better maybe I even gained a few ponies.  I also installed the new head gasket with a new MK4 metal style it should increase compression just a bit and add a couple horse power.  The metal gasket was a no brainer since I needed to replace the old one anyway, its only a few dollars more than a standard OE gasket made from felt or paper. 

Exhaust side

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Intake side or front of the engine

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Cleaned any build up from inside each cylinder 

Next should be setting the timing....




Day 8 VR6 Engine Rebuild - Accessories

While the head is at the machine shop getting rebuilt I thought I would take the time to clean up a couple of the accessories and gasket match the exhaust manifolds.  I took the starter and the alternator to Napa to have them tested.  Turns out the starter is good, but the altinator is bad (I have another to get tested) , but will probably be cheaper for me to get this one rebuilt than buy a remanned one.  


Repainted the good starter


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One side done, one side to go.

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