Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  
richp

Power beyond port

Recommended Posts

richp
On my 7119 and 4040, the hydro lift valve doesn't have a power beyond port but does have a spot for it along with casting marks labeling it as PBY. I wonder if this port can be drilled and tapped for use. What do you guys think?

Share this post


Link to post
Share on other sites
D-17_Dave
Often a PBY section of a valve has a port but it also has an insert that helps direct the flow under pressure into this sectionof the valve body. IMO you would be dissapointed in the results of going into the valve yourself.

Share this post


Link to post
Share on other sites
D-17_Dave
Yes. This is a common modification on these tractors. But you'll need more hardware to complete the swap and be satisfied. You'll need both lift levers and the corosponding linkages. You'll also need the metal line goint to the front that plumb into the extra ports of the 2 spool valve. You'll need all this to make the 4040 like the later model tractors.

Share this post


Link to post
Share on other sites
richp
Thanks guys. I had to replace the float, as this one had cracked pucks and they were hitting the center of the carb. Can't believe how expensive Onan parts are.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  

×