diesel spam

[Unclejake]

On 13/05/2024 at 19:47, Unclejake said:

 

4 cylinder non turbo Perkins 4-236 with perhaps 6,000hrs in a JCB backhoe loader...... took 45 mins to drive 12kms 

 

After clearing out the fuel system and sealing the lift pump leak the same trip took 36 mins this afternoon

It's still hellishly noisy, but too wet and cold to pull the rocker cover off today

[dmulally]

Hello all

Nissan ED33 from a bus. Does anybody know what this line is that is hanging off the back of number 4 injector? 

[Mof]

It's a return line, you see it goes to a banjo off all 4 injectors. 

[dmulally]

3 hours ago, Mof said:

It's a return line, you see it goes to a banjo off all 4 injectors. 

Ta. It's blocked up so I didnt know what it did. If that's the return line, what is the line at the back of the injector pump with the small white filter on it? I thought that was the return. 

I got the engine running with a hose into a erry along with the inlet hose into the same jerry so couldnt see which was doing what. Runs like a bag of shit but I dont think it has been running in 30 years so it is what it is. 

 

[Mof]

The injector returns to the fuel pump. At full throttle if the pump is supplying more fuel than the injectors can handle then it returns.

The fuel pump has a return also back to the fuel tank

[dmulally]

15 hours ago, Mof said:

The injector returns to the fuel pump. At full throttle if the pump is supplying more fuel than the injectors can handle then it returns.

The fuel pump has a return also back to the fuel tank

Ta. Do you know roughly where on the pump the small line from the injector goes to? Would it help if I took a few happy snaps? 

[Raizer]

11 minutes ago, dmulally said:

Ta. Do you know roughly where on the pump the small line from the injector goes to? Would it help if I took a few happy snaps? 

I'd say that one.

[dmulally]

39 minutes ago, Raizer said:

I'd say that one.

That one goes into the block.

[Raizer]

35 minutes ago, dmulally said:

That one goes into the block.

Ah interesting, on several others that's the spot for the return.

[dmulally]

What I might do is unclog it at the end and when it's warmed up give it the jandal to see if anything comes out. If it does I'll loop it back to the fuel tank somehow. 

The only problem I'm worried about is if when revving it out the smoke that comes out will bring unwanted attention from the ladies. We all know what soot gets. 

[Mof]

4 hours ago, dmulally said:

Ta. Do you know roughly where on the pump the small line from the injector goes to? Would it help if I took a few happy snaps? 

Yeah that's as far as my memory goes. There must be a little hose tail or something back there for it to go to. Tbh I never took a lot of pumps off, heads and injectors yes.

[Hemi]

Man I'm jogging my memory hard but it doesn't go to a 2 way banjo does it? Just straight back to the tank with the return

One outlet on banjo for main return, one tiny one for the injector

[dmulally]

13 hours ago, Hemi said:

Man I'm jogging my memory hard but it doesn't go to a 2 way banjo does it? Just straight back to the tank with the return

One outlet on banjo for main return, one tiny one for the injector

Perhaps. It's just chopped off and clogged full of ancient oil and grease at the moment but I did think about plumbing it into a T piece on the return line from the back of the pump.