2350 hard start after running

[Tx Jim]

No here's what I stated
[/quote]I'm confused when you state "" the two levers to the right of the PTO lever are for the coupler valves on the back"" as I remember no 2 levers immediately to the right of pto control lever.[/quote]
I see no mention of three point in previous statement.

BUT SCV control levers are to the RH side of 3 pt control lever when operator is sitting in tractor seat

 

[TDIdog]

No here's what I stated

I'm confused when you state "" the two levers to the right of the PTO lever are for the coupler valves on the back"" as I remember no 2 levers immediately to the right of pto control lever.[/quote]
I see no mention of three point in previous statement.

BUT SCV control levers are to the RH side of 3 pt control lever when operator is sitting in tractor seat[/QUOTE]

Right. My post said that the reason you were confused is because I said PTO, not three point. I made a mistake when I originally said PTO instead of threepoint. I should have said exactly what you said in that last paragraph. The control levers to the right of the three point lever.

So, shouldn't the pump destroke when those SCV levers are moved to the end of their travel? I ask this because when I move the SCV lever right next to the PTO lever all the way forward the engine stays loaded and the pump stays in stroke. If I move either of the SCV levers all the way to the end of their travel - except the left hand SCV lever moved all the way forward - the pump stays in stroke.

 

[beenthere]

TDldog

Some adjustments likely needed, either linkage or relief valves, or both.

 

[jd110]

So, shouldn't the pump destroke when those SCV levers are moved to the end of their travel? I ask this because when I move the SCV lever right next to the PTO lever all the way forward the engine stays loaded and the pump stays in stroke. If I move either of the SCV levers all the way to the end of their travel - except the left hand SCV lever moved all the way forward - the pump stays in stroke.

You are correct that the pump should not be loading the engine when scv levers are moved when there is nothing plugged into the rear couplers. There are 2 pressure and 2 return valves inside of each scv that have teflon seats on them. Most likely one or more of those valves has debris embedded in those seats that is causing it to leak internally. This debris gets in there from people failing to clean hose tips or inside of coupler socket before plugging in hoses. I have probably replaced thousands of those valves in the past 42 years. Sometimes the seat in housing is damaged as well and needs to be dressed up with special tool. ts of parts inside of those scv's. You will want a technical manual before you disassemble it. Adjusting valve clearances requires a dial indicator to make them work properly.

 

[Tx Jim]

jd110
2350's had option of poppet or spool valve scv's. As you're well aware the solution to oil leaking internally with spool control valve is replacement of complete component not repair. It will be interesting to know which type scv TDIdog's tractor has.

 

[Tx Jim]

So, shouldn't the pump destroke when those SCV levers are moved to the end of their travel? I ask this because when I move the SCV lever right next to the """"PTO lever"""" all the way forward the engine stays loaded and the pump stays in stroke. If I move either of the SCV levers all the way to the end of their travel - except the left hand SCV lever moved all the way forward - the pump stays in stroke.

You stated """pto lever""" again. Actually pump is designed to automatically de-stroke when hyd pressure inside hyd components reaches set stand-by pressure. Obviously a high pressure internal or external leak keeps pump from de-stroking.

 

[jd110]

jd110
2350's had option of poppet or spool valve scv's. As you're well aware the solution to oil leaking internally with spool control valve is replacement of complete component not repair. It will be interesting to know which type scv TDIdog's tractor has.

You are correct Jim. Most 50 series we sold had the more deluxe poppet valves, so it slips my mind sometimes that the spool valve is a possibility. At that ime period, most spool valves were on government bid situations. The spool valves were cheaper, so they were spec that way to compete with other brands that didn't have the "deluxe" poppet valves. Today, the spool valves are the norm. Deluxe valves are electronic controlled spool valves. Makes you wonder what "improvements" we will see next. Scary at times.

 

[TDIdog]

You stated """pto lever""" again. Actually pump is designed to automatically de-stroke when hyd pressure inside hyd components reaches set stand-by pressure. Obviously a high pressure internal or external leak keeps pump from de-stroking.

AGAIN? My parents did actually have one or two smart kids. I'm glad that you translated my mistake. I'm mean autocorrect! It was autocorrect.

 

[TDIdog]

jd110
2350's had option of poppet or spool valve scv's. As you're well aware the solution to oil leaking internally with spool control valve is replacement of complete component not repair. It will be interesting to know which type scv TDIdog's tractor has.

Edit, I went back and read the post by jd110 and he is talking about the poppet valves, not the couplers. That means I'll need to step back and take another look at digging into this.

It definitely has poppet valves. Never did understand them and only worked on one or two 25 years ago, so If i have to go there, I'll have to reassess my options. But JD110 suggested the couplers themselves are a common issue, so I'll start there. I will probably throw jumper cables from the battery to the starter just in case there is an electrical issue even though this isn't a 57 Chrysler, but since the pump doesn't destroke when moving the SCV lever to full stroke, I'm sure the problem is hydraulic.

 

[TDIdog]

OK. I worked on one or two poppet valves probably 25 years ago and I remember nothing and the two guys that I know would know them have both died, so there's that.

So I need to find a manual to dig into this. And a new dial indicator. Mine are electronic and I don't trust them.

Do you by chance have a part number for that special tool if I need it?