Model Specific Questions and Info > MK2 Golf/Jetta and Audi 5k

Old 1.6 TD Which parts within head to replace?

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soma56:
I've a old mk2 1.6 TD. I have to replace the valve stems and seals. If you were rebuilding a head what other parts would you replace and where would you get them? I'm located in Canada.

libbydiesel:
I would buff the pre-combustion chamber inserts to a shine and replace any with any of the common small cracks.  The inserts are hard to find but I got some new ones from the UK a few years ago.   

I would replace the valve guides, valves, and valve stem seals. 

I would ream the guides and hand-lap the valves to the seats.  I would hand-lap the head gasket surface.   

soma56:
Thanks.

Anyone aware of an any online tutorials on replacing the valve stems, seals, etc. for a 1.6? I can't seem to find any. While I trust it's in the old Bentley manual sometimes videos/write-ups offer some unique, inside perspective.

ORCoaster:
There are some things that take special equipment and you generally can't do it at home.  Those with a big press can but I don't so I have to have the machine shop press in the valve guides and then they can do the valves and valve seals.  I have them do the deck anyway so it is just a bit more to set it up right.  I have lots of tools but some I lack and will never have room for.  Pay the shop.

libbydiesel:
I got the 7mm and 8mm drivers for valve guides and use an air hammer.  You can also get the hand version to either hammer or use with a press.  In either case, guides are easy to press out/in.  The reamers are a bit expensive, but also easy to do.  I don't have seat cutting capability but the seats are usually totally fine and a light hand-lapping cleans up the valve/seat sealing surface really nicely.  I think it was probably less expensive for the first head I redid even counting the tool purchases.  Now it is only parts and time and it is all stuff I enjoy doing. 

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