Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

[andrewnzinuk]

Hi

I have an issue with the time it takes to warm up my motor before being able to leave the boat ramp.

The motor is not EFI, just a carburettor.

The motor starts immediately cold after a couple of pumps of the throttle and a little bit of throttle on starting. When putting back into neutral, the motor wants to die. Give it 3 to 5 mins to warm up and it idles nicely when slipped back into nuetral.

Should I expect a choke to kick in and allow me to get under way immediately, much like EFI boats seem to. It is frustrating to have to wait at the ramp, especially when it is busy for the motor to get warm.

Once warm it starts and idles well (around 650-750) and you can go immediately into gear and your off.

Is this behaviour normal, should a choke kick in when cold, is it a carburettor tuning issue.

I am unable to warm it up before we get to the ramp, so I have this delay each time we drop her in.

Any thoughts appreciated.

 

[Scott Danforth]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

nope, you have a carb. 3-5 minutes normal

I usually walk my boat around to the end of the dock after it rolls off the trailer. I then start it immediately and have it warming up as I park the truck and run back.

 

[raven1978]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

as mentioned above, especially with the 3.0L you need to leave it at high idle(1500-2000) till it reaches around 145ish before you can drop it back down. The 3L motors are finicky when cold.

 

[Lou C]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

Normal with a carb engine. When I cold start my old 4.3 I keep the fast idle up at about 1500 till the temp gauge moves off the left stop and then reduce it down to curb idle. Boats do not set the fast idle automatically as on a vehicle with a carb. You have to set that with the throttle lever. Carb engines will not run a slow idle when first started like an EFI engine can. In fact that was one of the nicest things about finally getting EFI on our vehicles, not having to deal with a roaring fast idle every winter morning.

 

[aerobat]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

pretty normal - my 3.0 GS acts the same. you have to give it about 3 minutes of fast idle before you leave or it may stall out during manouvering.

 

[Fleetwin]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

^+1

My 3.0 is also very cold blooded.

 

[andrewnzinuk]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

Thanks all, glad to know mine is at least behaving as it should.

Cheers

Andrew

 

[jeffnick]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

At one point, I was advised to pump her once to 'set the choke' and I assumed that would also engage the high idle. Apparently neither is appropriate for my 260A?

 

[Fun Times]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

The motor starts immediately cold after a couple of pumps of the throttle and a little bit of throttle on starting. When putting back into neutral, the motor wants to die. Give it 3 to 5 mins to warm up and it idles nicely when slipped back into neutral.

Hi there, while these engines are a bit cold blooded and seem to take a bit of time to warm up for a good idle, you still may want to double check to see if the choke is working properly and the choke settings and carburetor adjustments are within specifications to try and make it run the best it can both cold and warm.

If you would like to just double check then you're in luck since page 120 of your engine model Volvo workshop manual has your carburetor specifications, http://www.blainehanson.com/Manuals/Other_manuals/VOLVO Elec, Carb, Ign 3.0-5.7.pdf

Hum, Now if you're in eastern half of the united states, I'm thinking right now would be the best time to get out there and get your carburetor properly adjusted for cold start ups.:lol: At -20 or more degrees Fahrenheit, that would be the test of all test right there. If you can get it to idle properly now, you may never have a cold start issue again.

I'm just messing with you guys, stay warm and safe out there.

 

[Lou C]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

Fast idle gas to be set by manually advancing the throttle about 1/3 in neutral

 

[skydiveD30571]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

At one point, I was advised to pump her once to 'set the choke' and I assumed that would also engage the high idle. Apparently neither is appropriate for my 260A?

A full throttle arm pump does set the choke.

However, there is no high idle to automatically engage like there is in vehicles. Don S. told me that there were 2 main reasons for this:
1)It is very hard on the drive to shift at high rpms
2)If you're near a dock, another boat, swimmers, etc and start your boat which automatically produces a high idle and you don't wait for it to settle back down to normal operating rpms, you can expect a pretty abrupt jump forward when shifting into gear. That doesn't equal good news for those around you.
For these reasons, boat manufacturers designed it so that you have to manually initiate a high idle scenario, meaning to shift you will have to reduce the throttle.

 

[garbageguy]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

Don S. Still contributing. Good stuff

 

[Fleetwin]

Re: Warm up time, Volvo Penta 2005 GLP-C 3.0 with SX Drive

I've found the issue with my V-P 3.0 is to OVER prime it.

I now "Set" the choke with one full stoke of the throttle and give it one pump. Any more than that and I get a nasty backfire because of too much fuel in the exhaust system.

Once lit off, I have to feather the throttle for about 30 seconds to get it to remain running.

You can't light off a 3.0 and leave it. Once the idle stabilizes, it's OK.