Too Soon Old, Too Late Smart

[bsekf]

My new/old 7030 sometimes starts hard. I've thought starter not fast enough, bad battery, bad connections, bad glo plugs. BUT, the last few times I have tried to start the tractor I've left the throttle very low, about 500 rpm's, and it starts right up. Did I stupidly veer into the proper procedure for my tractor or is that the correct way to start a diesel? Or, does it indicate a problem? I've always set the throttle about half way, 1000 rpm's, before starting. Have I been doing it wrong all these years?

Bill

 

[big bubba]

i always start at idle rpm, around 800. certainly wouldn't want to start @ 1/2 throttle in the winter months. actually anytime. let the oil seek out it's job 1st before higher rpm

 

[tacticalturnip]

I can't say I've ever throttled up my diesels before starting them; I can't tell you of any possible effects from that, I've just never done it.

 

[Doughknob]

Interesting. On my new Bobcat with Deadong engine, no matter where I put the throttle lever, the tractor starts at idle. I actually have to move it up/down a cycle to even get it to throttle up when I am ready to go.

 

[Eagle1]

Always start at idle unless I forgot to set the throttle back when I shut it down (rare)

 

[5030]

My new/old 7030 sometimes starts hard. I've thought starter not fast enough, bad battery, bad connections, bad glo plugs. BUT, the last few times I have tried to start the tractor I've left the throttle very low, about 500 rpm's, and it starts right up. Did I stupidly veer into the proper procedure for my tractor or is that the correct way to start a diesel? Or, does it indicate a problem? I've always set the throttle about half way, 1000 rpm's, before starting. Have I been doing it wrong all these years?

Bill

As with any mechanically injected engine, you always start it with the throttle set at base idle because the pump internally will advance the fuel to 100% on start up and instantly reduce it back to base idle when it starts. How they work. Electronically injected engines (common rail) are different I'm sure.

 

[JWR]

As with any mechanically injected engine, you always start it with the throttle set at base idle because the pump internally will advance the fuel to 100% on start up and instantly reduce it back to base idle when it starts. How they work. Electronically injected engines (common rail) are different I'm sure.

I own 4 Kubotas -- 3 older B2150 4 cyl and one BX2200 3 cyl. None of them reduce back to idle once they start. They go straight to whatever I have the throttle set at. Have not tried it on the larger MF2660 yet.

 

[big bubba]

on the flip side of a work detail, i'll always let it idle a few minutes before shutdown. mainly for turbo, but a good practice anyway on agri or small engines, etc.

 

[Ferpen]

The start procedure in the operator's manual for my Kubota L3901 states to "set the hand-throttle-lever to about 1/2 way."
It also states to slow the engine to idle before turning the engine off.

 

[ljjhouser]

The start procedure in the operator's manual for my Kubota L3901 states to "set the hand-throttle-lever to about 1/2 way."
It also states to slow the engine to idle before turning the engine off.

Same in the manual for the L4701.