Rtv1100

SpudHauler

New member

Equipment
RTV 1100 CW-A
Sep 8, 2010
97
0
0
Canada
I've read somewhere that someone had set it as high as 5,000 or it could go that high. Sounded extreme to me.
And yes, when I installed the turbo, Kubota was out of the picture. You modify it you own it.
WSM page 2-S48 Transmission section, Return Piston, Springs and Stopper Rod is where the extra washers were placed under the spring in the piston case.
And the orfice in the Servo Piston Assembly housing on the adjuster side was supposed to be removed, I believe for increased flow, and because it was impossible to remove we drilled it out. I believe they said in later models it was not even in there or perhaps not as restrictive.
Guess I need my own adapter to hook up a gauge, which I have, to check the forward pressure relief.
I'll order a plug and have my welder adapt some fittings to it so I can plug in a pressure gauge.
As I understand it the plugs are a bitch to remove. Any hints?
May not do anything as it works great right now, but it would be nice to know what pressure I currently am running.
 

eserv

Well-known member

Equipment
BX24, A1000 Kubota Generator
May 27, 2009
2,183
164
63
Hardisty, Alberta
One problem with the design of the RTV transmission is that if we set the full throttle full pump stroke to equal the engine hp it can be seriously over pressured at any lower pump stroke. At maximum stroke the pressure can only get as high as you have horsepower to get it, at reduced stroke the pressure can go much higher! I don't know where the weak link is in those transmissions but it'll be fun to find out. I suspect the pump swash plate will be what fails though. Have fun! I'd like some picture of the destruction if it grenades!
Ed