1986 TMC 102A3 - Slow Take off

[opus]

If you are saying your fuel filter is clear and 2/3 full, I think you are looking at a water separator, probably a Raycor.  Your fuel filter wouldnt be clear, 1986...ummm....I think it would be a spin on type.

[jraynor]

If you are saying your fuel filter is clear and 2/3 full, I think you are looking at a water separator, probably a Raycor.  Your fuel filter wouldnt be clear, 1986...ummm....I think it would be a spin on type.

It says fuel processor on it. Looks like the photo below:

[opus]

Ok, thats not what I was expecting.  Unless you see others, that will be it for fuel filters.

[luvrbus]

That is a Davco 320

[jraynor]

Ok, thats not what I was expecting.  Unless you see others, that will be it for fuel filters.

Yeah I went looking for fuel filters and found this instead. Just a bonus that the bus came with it so I can see when it needs replacing. Next step would be to buy some replacement filters for it

[Iceni John]

Ok, thats not what I was expecting.  Unless you see others, that will be it for fuel filters.

Maybe, or maybe not.   I have a Racor 900FG water separator / fuel filter as the primary filter, and also a separate spin-on filter as the secondary filter after the fuel pump and DDEC cooler plate.   The Racor filters to 2 microns, so I can't imagine much getting through to the other filter.

John

[chessie4905]

Just saw a 4108 with one of those "fuel processors" and it also had the two spin on fuel filters.

[jraynor]

I'll try to trace the fuel lines when I can to see if there are any spin on or clamp style filters in the line

[jraynor]

So yeah it's been awhile. School and work keeps me busy plus I've been working on the inside of the bus lately. Got all of the interior paneling out, insulation removed, rust cleaned and everything painted. So today I went out looking at the fuel lines. My conclusion, I only have the fuel prrocessor. Pictures are below. First shows where the lines come in and bolt to the bulkhead above the transmission, 2nd it is running to the fuel processor. 3rd is the fuel processor, last is the line to the govenor

[luvrbus]

There nothing wrong with your Davco system it works as good as the 2 filter system ,the throttle delay under the valve cover get wore out and the turbo need to spin faster to make up the air lost,so comes the slower take off lol a 5/16 th Allen wrench to remove the arm and off you go with a little more smoke of course

[jraynor]

There nothing wrong with your Davco system it works as good as the 2 filter system ,the throttle delay under the valve cover get wore out and the turbo need to spin faster to make up the air lost,so comes the slower take off lol a 5/16 th Allen wrench to remove the arm and off you go with a little more smoke of course

Is there an item to replace that would help the issue? I'm all for easy ways of fixing things but id rather have the bus stock versus a bunch of work arounds that can cause issues later. Like the fast idle stop arm, someone shortened this so that when the bus is on fast idle you can still press the gas and increase RPMs which is a no-no. One day ill order a new kit and replace it but for now ill just keep that in mind

[luvrbus]

You have to replace the throttle delay no rebuild parts for those a new one cost $785.00 if you can locate one and they are bitch to adjust some times,check your the nylon roller may have broken you can buy the roller   

[jraynor]

You have to replace the throttle delay no rebuild parts for those a new one cost $785.00 if you can locate one and they are bitch to adjust some times,check your the nylon roller may have broken you can buy the roller

Ok thank you. I will add this to my list of things to work towards. I'll go dig through the DD manual I have and see what I can find about where this is located and such. What kind of seals do the valve covers have on them? Rubber or cork like? So that I can be prepared in case it rips or breaks looking into this

[luvrbus]

Valve covers use a reusable silicone gasket the 92 series you need a DD gauge to set the throttle delay too

[DoubleEagle]

If you need the throttle delay gauge pin tool, there are four for sale on eBay for $20 (eBay item number:271204440916).