Will start only with a squirt of starting fluid. Runs great once started.

[biscuitwhistler37]

Facts:

1. I am getting lots of flow all the way through all NEW parts all the way to the (NEW) hydraulic head.
Its not a lot of pressure, but the flow will fill a pint bottle in seconds.

2. The hydraulic head is firing. I can remove the line and see a strong squirt at each injector inlet.

3. The injectors are not popping properly.


I guess I'm going to mess with the injectors again.

Well, positive side is at least you now have the problem narrowed. Hopefully it's just a clogged nozzle or two.

 

[7Dust]

This is looking promising.

NEW injector on number 5.

February 26, 2024

youtube.com

I’m going to buy 5 more.

 

[KN6KXR]

I highly recommend setting up to do your own injector service and calibration because on these machines it's super cheap and easy. I got a pop tester on eBay for about $120 and White Owl has injectors at $80 each plus they carry shims and other parts. The TM is pretty clear do a search here there's lots of threads.

Anyways they aren't hard to change and it's super nice having a tested set in storage.

 

[ToddJK]

Any updates? I'm curious if it was the injectors.

 

[ToddJK]

I'm starting to have these issues as well. However, mine does this if I run more diesel/gas than I do wmo. Too much gas and it won't start at all unless it gets lots of either and it needs to rev over 1200rpm to keep from stalling out. Yet it will start and idle at 700 rpm with wmo. I know there's a float in the FDC (mine isn't bypassed), guessing it's gummed up and it's not adjusting to the density of the fuel because it did before and the changing of fuel filters made no difference plus it has a new in tank pump. I'm running cleaners in every tank and now the governor is starting to kick in like it's supposed to when I hit up grades and stuff where it wasn't before for a while, not all the time, but it's slow progress. I know parts can get gummed up over time, but this tells me, that FDC needs to be cleanish for that float to operate properly and can lead to lots of issues otherwise. I doubt this is the OP's issue, but it's an issue I'm sure someone else may have and don't even realize it.

 

[cattlerepairman]

@ToddJK I wonder whether what you see is wear of the HH. It simply does better on a higher viscosity fuel such as WMO, but loses too much pressure on the "thinner" fuels.

 

[ToddJK]

@ToddJK I wonder whether what you see is wear of the HH. It simply does better on a higher viscosity fuel such as WMO, but loses too much pressure on the "thinner" fuels.

That may be, I just know every once in a while I get full power back and it runs great, then goes back to lagging again, it's not bad bad, but you can tell there's a power loss there.

 

[biscuitwhistler37]

Any update on this? Sorry to pester you about it, super curious to see if it was the injectors after all.

 

[7Dust]

Any update on this? Sorry to pester you about it, super curious to see if it was the injectors after all.

Yes. I'm going to wrap this up.

I'm not sure WHAT SPECIFICALLY fixed it since I replaced every part of the fuel system!

However, during firing of the parts cannon, I installed the injection pump 180 degrees out.

NOW, it fires up no problem. No cranking, no funny business - just fires off and idles!

I have a leaky hardline that came apart (also NOS) - so diesel sprays EVERTYWHERE. For now.

Anyhoo, hard start problem fixed!

 

[NY Tom]

Very happy to hear that you got your problem resolved. Thanks for posting the response.