3126 No Start after replacing air compressor

[Starbus416]

Hello,
I have a 3126E in a 2003 Thomas HDX. I replaced the air compressor and the oil and fuel filters. The oil levels are correct and the fuel system is purged of air and water. Batteries are fully charged and it ran last year. The bus will crank and sputter a like it wants to start but no luck .

I don't can't afford the money to buy cats software, anyone have experience with this?
This is my first time posting please ask for additional details.

 

[TheHubbardBus]

Just to clarify, is the following a factual statement:

"The bus was running immediately prior to the work I mentioned above, and then immediately after the work, it failed to start".

Or is it more like "It ran last year, it's sat ever since, work was done without starting it, and now that the work was completed it won't start".

 

[Mr P]

Sputters, won't run, after a fuel filter change.

99.9% chance there is air in the fuel system.

 

[Mr P]

Oh, just watched the vid. Charge your batteries, they are getting low.

And someone who knows that engine needs to tell us how to prime the fuel system.....

 

[Starbus416]

Just to clarify, is the following a factual statement:

"The bus was running immediately prior to the work I mentioned above, and then immediately after the work, it failed to start".

Or is it more like "It ran last year, it's sat ever since, work was done without starting it, and now that the work was completed it won't start".

it was running last year. then sat for a year. worked on it this year recently. tried starting it yesterday and today.

 

[PorchDog]

I agree with above-- more than likely you have introduced some air into the fuel system. A cheap easy thing to do is get some WD 40 or silicon spray-- not ether-- and spray it into the breather and see if you can start it and keep it running for 15 seconds-- if it has air-- that should work it out...

 

[Starbus416]

I agree with above-- more than likely you have introduced some air into the fuel system. A cheap easy thing to do is get some WD 40 or silicon spray-- not ether-- and spray it into the breather and see if you can start it and keep it running for 15 seconds-- if it has air-- that should work it out...

how much do you usually spray!

 

[PorchDog]

One person activating the starter, and another spraying the stuff. Just enough to barely keep it running...

 

[nikitis]

If it's the silly spray, a healthy amount because it hardly works when I do it.

If you use Ether though which most here won't recommend, (I personally recommend it but it MUST be sprayed correctly) only do a split second quick tssh, no more. The tiniest spray on the air filter will get her to start to crank over as it's HIGHLY combustable so it really doesn't need much at all, and if you do over do it the fears of those on here not recommending it will come true. If she picks up on her own after the crank over, then the air will be out. If she cranks and then stops, repeat, give it another quick tssh, turn the key, repeat a few times till she runs on her own. If she doesn't after a few times, may be something else wrong.

Silicone spray is safer to use for most people. (And we don't need the negative comments from others.)

 

[#1FordFan]

how much do you usually spray!

With wd40 spay a bunch just keep it running. It could take upwards of 20 seconds.

Once you master this with wd40 you will know buy listening to engine to see what it takes. (Wd40 propellant is propane I’ve been told)

I’ve done this procedure with starting fluid and not hurt an engine. It’s easy to hurt one.

 

[SkyMaster]

I read somewhere pressurizing the fuel tank will assist in priming the engine\fuel system?

Haven't tried it