8.3 cummins need aux batteries?

Topic: 8.3 cummins need aux batteries? (Read 1525 times) previous topic - next topic

Re: 8.3 cummins need aux batteries?

Reply #25 – December 30, 2013, 12:42:54 pm

Bob,

Let's differentiate between between running the block heater (a good idea if 120 VAC is available) with engine pre-heat.

Engine pre-heat is the grid heater in the intake manifold in modern diesel. That is why you turn ignition on and wait before engaging the starter. You are waiting for the intake manifold heater to get red hot so incoming air is more likely to be at a temperature to easily start the engine.

Brett

Re: 8.3 cummins need aux batteries?

Reply #26 – December 30, 2013, 07:35:52 pm

Quote from: wolfe10 – December 30, 2013, 12:42:54 pm

Bob,

Let's differentiate between between running the block heater (a good idea if 120 VAC is available) with engine pre-heat.

Engine pre-heat is the grid heater in the intake manifold in modern diesel. That is why you turn ignition on and wait before engaging the starter. You are waiting for the intake manifold heater to get red hot so incoming air is more likely to be at a temperature to easily start the engine.

Brett

Modern conveniences. Love it. How long to warm it up? Any indication its ready?

Thought I saw a intake charge heater in the tech specs on my M11.

What temps will it allow starting at without preheating the block?

I have used ether and extended crank time on a dead cold 3208 and a 8.2 Detroit down to -30....

Lots of cold smoke but started

Thanks for refreshing my memory. The m11 celect plus starts well in my short ownership. Especially after replacing the fuel lines.

Bob

Re: 8.3 cummins need aux batteries?

Reply #27 – December 30, 2013, 09:03:53 pm

our m11 in our 03 u320 does not have the grid heaters in it, which surprised me. It has an ether canister which I have disconnected. I use the block heater and the aqua hot engine preheat. I remember the 3208 and 8.2 with the ether start. It seemed like the canister would rust out and then be empty when you needed it.

Re: 8.3 cummins need aux batteries?

Reply #28 – December 30, 2013, 10:06:38 pm

Ron,

I have not worked on an M11, but I googled: "Cummins M11 intake manifold heater". Came up with quite a few hits including this one:

?For Cummins 4083113 Heater, Intake Air FOR SALE

Re: 8.3 cummins need aux batteries?

Reply #29 – December 30, 2013, 11:03:49 pm

With diesels that have heated wire grids, ether is usually added downstream through a dedicated fitting.

Pierce

Re: 8.3 cummins need aux batteries?

Reply #30 – December 31, 2013, 07:28:47 am

Brett,

There's no intake grid heater on my M11 Celect Plus. This looks like an accessory available for applications without our cold starting aids.

Re: 8.3 cummins need aux batteries?

Reply #31 – December 31, 2013, 09:54:28 am

Trying to respond or comment on what many contributed to this subject, I think J.D. and similar will help me keep our friends cranking. As for applying the aux batteries to our ism, I always do. I read somewhere the ism needs a bit higher rpm to crank than some.

As for Amos and Bret, good to clarify. I think i do have an ether canister but never tried to use. I guess that the engine block preheating is doing a great job, warms oil, so after few days in 20 - 30 degrees, with aux on and preheat, cranks easily, say 15 seconds.

I gather from Bret I may have been leaving heat on much longer than needed, as in overnight for a 22 degree morning....I must sound like a wimp to you in Maine shoveling snow to get to your coach!

Re: 8.3 cummins need aux batteries?

Reply #32 – December 31, 2013, 12:12:46 pm

So my 97 does not have an intake grid heater?

Can't remember a ether switch on the dash?

I had good luck in extreme conditions with the ether start many times in other coaches long ago. Probably works at lower temps than the grid setup?

Bob

Re: 8.3 cummins need aux batteries?

Reply #33 – December 31, 2013, 12:21:51 pm

A quick call to Cummins with your engine serial number will tell you whether you have an intake heater or not.

It is really important, as with the intake heater you don't want to use ether in the air intake.

Cummins 800 343-7357

Re: 8.3 cummins need aux batteries?

Reply #34 – December 31, 2013, 12:27:39 pm

Wasn't there a post that on a m11 the ether system was after any grid heater? Then you could have both for extreme uses?

Bob

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Re: 8.3 cummins need aux batteries?

Reply #25 – December 30, 2013, 12:42:54 pm

Re: 8.3 cummins need aux batteries?

Reply #26 – December 30, 2013, 07:35:52 pm

Re: 8.3 cummins need aux batteries?

Reply #27 – December 30, 2013, 09:03:53 pm

Re: 8.3 cummins need aux batteries?

Reply #28 – December 30, 2013, 10:06:38 pm

Re: 8.3 cummins need aux batteries?

Reply #29 – December 30, 2013, 11:03:49 pm

Re: 8.3 cummins need aux batteries?

Reply #30 – December 31, 2013, 07:28:47 am

Re: 8.3 cummins need aux batteries?

Reply #31 – December 31, 2013, 09:54:28 am

Re: 8.3 cummins need aux batteries?

Reply #32 – December 31, 2013, 12:12:46 pm

Re: 8.3 cummins need aux batteries?

Reply #33 – December 31, 2013, 12:21:51 pm

Re: 8.3 cummins need aux batteries?

Reply #34 – December 31, 2013, 12:27:39 pm

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