Bob Rooks

Hi Ronald,

#2;  Really?. In some of your other post/videos you are stating that it is a relief valve, adjustable Pressure Regulating Valve and now a PRESSURE REGULATING VALVE!?? 

Some are adjustable, some are not. The ones with a bolt in the end ARE adjustable via spring pressure. You may also refer to it as an adjustable relief valve. The issue here is semantics: The valve in question is not intended to check or stop flow.

#3; Back at ya….. maybe Google >> Check Valve…… the word, pictures & videos.

In this application it is not considered a check valve because that is not it's function – to check or stop flow. In other applications where back flow is not allowed it would be considered a check valve.

#4; Agreed…..but not quiet on top.

Most all diesel engines equipped with fuel return lines will have them return on or near the top of the tank, or there will be a standpipe inside the tank. Quite so.

#5; Then How would you protect unfiltered fuel from entering the plunger pump chamber after shut down ?? and or keep a vacuum  lock on the fuel chamber/fuel supply side  for quicker start ups after setting/shut down…..  ((maybe the word prime?))??

a) The fuel in the return line has already been filtered (reason for the return line entering the top of the tank is to prevent cross-contamination). b) Why would you want a vacuum in the fuel chamber? The built-in check valves in the lift pump are supposed to prevent a bleed-back from happening. c) Quicker startups? Prime? Lost me there.

#6;  So if it is REGULATING as fuel passes through ……… What happens or goes wrong when the fuel reenters the fuel tank unregulated??

The fuel is regulated BEFORE it passes through the valve. The valve spring pressure creates resistance (back pressure), approximately 20 – 35 psig, upstream of the valve toward the fuel filter (this is where you would install a fuel pressure gauge). The return fuel downstream of the valve is always unregulated, it just goes back into the tank. All diesels are like that.

#7; Then why will the engine perform with the check valve (aka PRESSURE REGULATING VALVE!) in my pocket….at idle, full throttle, full load etc… ??.

Simple. There is ample fuel supply from the lift pump to keep the fuel chamber nominally “charged”. I will speculate the engine will not perform equally well under operating conditions – ie: full governor demand for a period of time, hilly terrain, etc. Plow a field without it and let me know what happens. If you claim they are unnecessary, then maybe you can tell me why they are installed on virtually all diesel engines?

Forgot to mention to Google “relief valve”, “adjustable relief valve”, “pressure regulating valve”, etc.

I don't have the time right now to do the whole installation (helping contractor build garage), but I will take some pics today.

That looks good Carl! What do you mean by “leveling  bars”? Is that an equalizing hitch? Where do you stow the ramps?

Why do you dislike posting here Mike, we all like you.

Mike wrote:

I don’t understand how the pathologist report could come
back clean and now I have a new tumor?

I don't understand either. Doesn't seem right.

Whatever happened to Hall-Scott? Were they bought out by Hercules, Continental,  or Waukesha?