Wisconsin question

[JOB]

Does anybody know if a VH4 Wisconsin has a full floating piston or is the wrist pin pressed in the piston.

Another question, are the original valve guides driven in, or do you have to machine them out to replace them? I am pretty sure the VE and VF had replaceable guides as original.
Thanks for any help
 

[greygoat]

My master parts book, (a later edition) shows a
VH4D,(Stellite valves,and replacable valve seats)
that has snap rings to retain the piston pins, so
I'd presume that they are floating. It also
shows replacable valve guides, and the "Special
Tool" section shows a dedicated "Puller"for valve
guides.
A 1973 NAPA engine parts book shows 2 cyls, TF,
TFD,TH, THD,and 4 cyls VF4, VF4D,VH4, VH4D as all
using the same valve guides. Most parts for 2 and
4 cylinders are still available from NAPA.
 

[JOB]

Greygoat, from your post below and my own experience Wisconsin is very proud of their parts. There are a couple of parts that I have misplaced for this engine I am going to put back together that I will have to buy from Wisconsin. I need a couple of pistons, the ones in the engine now are Wisconsin. In your opinion should I buy two pistons from NAPA and have a mismatched set in the engine. Or buy the pistons from Wisconsin. I know years ago Wisconsin pistons were grossly expensive. Or would it be more economical to buy four after market pistons?

When you buy parts from NAPA what brand are the bearings and rings and pistons. Gaskets are felpro. I was just in there yesterday and the young fellow who waited on me did not know much, he gave me to a older guy that knew a little.
 

[Duner Wi]

You might check ebay. It would be best if you knew the part #s.
 

[JOB]

I do not like e-bay, I have bought a couple of things off there and the items are misrepresented. Engine parts I will buy from a reliable source. I saw a gasket set on e-bay for around $100.00 for this engine. NAPAs price around $50.00.
 

[greygoat]

I just got 4 valves for a 2 cylinder. (most 4
cyls. are 2 two cylinder decks, on a different
crankcase/base) They were "Dana" brand,(the axle
company), made in China. I have no problem with
this if Dana or NAPA stands behind them! The last rings that I got were Dana, also. I've
never bought pistons...but if one side was bad
the other should have about the same wear, so i'd
replace as a set. I don't buy from Wisconsin,
just too high!
 

[JOB]

Thanks greygoat, what you said is what I thought also. Another engine guy said to buy after market pistons and just replace the two bad ones. My two bad pistons show wear above the top ring lance on the side of the piston that faces the valley. I was told that might have been caused from running too lean. This engine was used on a machine than would crank up and move into position and then shut the engine off. It might have taken ten to twenty minutes to position the machine. So this machine never ran very long at any one time. I call it a machine but it was actually a ramp to unload cars from rail cars. When the valves were removed from the block the intake ports were almost plugged with carbon right below the valve head. I wonder if that was caused from short run times?