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Today’s fight with my injectors.


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15 minutes ago, captin slows old outlaw said:

perkins prima with terbo, good engin mark 2 montego much better than the mark 1

Still awful, how many are still on the road now? 

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4 hours ago, JonC said:

Yeah I took them straight up to Colchester fuel injection services, should know on Monday what the verdict is. The guy did say they looked bad, reconed that they all would a need refurb. 

I think if you can get away with a refurb, then that would be a result 👍

 

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3 minutes ago, GPSguru said:

I think if you can get away with a refurb, then that would be a result 👍

 

I don’t think the guy there considered anything else, in as much as that’s what they specialise in. He was vague in regards of cost, until they test them then look at what replacement parts are needed. 

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1 hour ago, JonC said:

I don’t think the guy there considered anything else, in as much as that’s what they specialise in. He was vague in regards of cost, until they test them then look at what replacement parts are needed. 

Sounds like you have got a good specialist.

Even a full rebuild of every possible part, has got to be cheaper than a replacement injector 👍

How long before you get them back ?

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7 hours ago, JonC said:

They aren’t spraying - the guy described it as hosing which is basically dribbling out.

Excellent result, both spray pattern and volume are critical with injectors, also, over time, hosing can damage the piston crowns.

Are they supplying new bolts and seals, or are you getting OEM ?

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15 minutes ago, GPSguru said:

Excellent result, both spray pattern and volume are critical with injectors, also, over time, hosing can damage the piston crowns.

Are they supplying new bolts and seals, or are you getting OEM ?

I’m getting the bolts from Stuart who runs Arvor marine parts, he gets all the various service stuff from a contact at a VW dealership I believe so gets the right stuff. 
Im assuming the seals 🦭 will come with them, but I will check when they call me to collect them. 

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20 hours ago, JonC said:

Much more betterimage.thumb.jpg.f345356f6d83cdcd3e3ad342de137502.jpg

Looking very good indeed, complete with new copper seals fitted.

Are you replacing the leak off (spill) rubber pipes or reusing the originals ? , I think I would stay with the original pipes as the quality of aftermarket pipe is not great. 

I have a good feeling that this will fix your starting issues.

 

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14 minutes ago, GPSguru said:

Looking very good indeed, complete with new copper seals fitted.

Are you replacing the leak off (spill) rubber pipes or reusing the originals ? , I think I would stay with the original pipes as the quality of aftermarket pipe is not great. 

I have a good feeling that this will fix your starting issues.

 

I changed the leak off pipes a year or so ago, I have the replacement ones I put on and also have a bit of new stuff to replace any that look iffy.

The new bolts, should I add a bit of copper slip to them or would that affect the torque settings? Talk setting is 25 Nm, I assume that is dry? 

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1 hour ago, JonC said:

I changed the leak off pipes a year or so ago, I have the replacement ones I put on and also have a bit of new stuff to replace any that look iffy.

The new bolts, should I add a bit of copper slip to them or would that affect the torque settings? Talk setting is 25 Nm, I assume that is dry? 

Personally, I would leave them dry, just like when they were factory fitted. Also, 25Nm is hand tight and a tweak, unlike my trailer bearing retainers that are 5 grunts and a hernia at 270Nm.

copper slip has a habit of drying out when subjected to continual heat, and that could cause the threads to gall, which you really don't want, as that is a whole new world of pain.

 

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Well it’s all back together, I did the injectors up pretty tight but the tork wrench didn’t click It’s not a great quality one as I don’t have a lot of use for such things normally. That said I consider myself fairly strong, I do a manual job so my tight is probably as good as the next guy’s. 
I fired up, it took a bit of cranking because the system would have been dry. Still a little bit of white smoke but maybe that’s residual shit burning off. I had a blast up and down the river and it’s still hitting the high revs so at least haven’t gone backwards. 
The telling will be when I go back down tomorrow and try to fire it up. 

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5 minutes ago, JonC said:

Well it’s all back together, I did the injectors up pretty tight but the tork wrench didn’t click It’s not a great quality one as I don’t have a lot of use for such things normally. That said I consider myself fairly strong, I do a manual job so my tight is probably as good as the next guy’s. 
I fired up, it took a bit of cranking because the system would have been dry. Still a little bit of white smoke but maybe that’s residual shit burning off. I had a blast up and down the river and it’s still hitting the high revs so at least haven’t gone backwards. 
The telling will be when I go back down tomorrow and try to fire it up. 

Sounds good. It is not so much the grey white smoke, but a general improvement in starting that is important. Yes, it would have been slow to start today as there was air in the fuel system and I guess yours is self bleed, which takes a fair bit of  cranking to remove the air and then build the correct fuel rail pressure

you should notice better fuel economy, better throttle response, and hopefully much better starting from cold.

Yes, 25nm is not a lot, sort of tighten with a socket and then give it just a tad more. I am guessing it is an ali head.

Good work 👍

 

 

 

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35 minutes ago, JonC said:

Well it’s all back together, I did the injectors up pretty tight but the tork wrench didn’t click It’s not a great quality one as I don’t have a lot of use for such things normally. That said I consider myself fairly strong, I do a manual job so my tight is probably as good as the next guy’s. 
I fired up, it took a bit of cranking because the system would have been dry. Still a little bit of white smoke but maybe that’s residual shit burning off. I had a blast up and down the river and it’s still hitting the high revs so at least haven’t gone backwards. 
The telling will be when I go back down tomorrow and try to fire it up. 

so when are you going to s / f to do his 

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Just now, Saintly Fish said:

Cop out

If I were you I'd not worry about the smoke, after all it's a marine diesel and they all do it. Some more than others, mine smokes a fair bit but never burns oil or has performance issues. I just accept it and go fishing!!

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2 minutes ago, Saintly Fish said:

If I were you I'd not worry about the smoke, after all it's a marine diesel and they all do it. Some more than others, mine smokes a fair bit but never burns oil or has performance issues. I just accept it and go fishing!!

As ever you are right, I couldn’t care less about what the smoke looks like but the fact that it is there says something isn’t right. The starting issue is my number one priority, if the smoke fucks off it’s a bonus. Even if the injectors aren’t the problem it’s not a total waste of time and money as performance should be up and fuel consumption down, so that’s a good thing.

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2 hours ago, JonC said:

I couldn’t care less about what the smoke looks like but the fact that it is there says something isn’t right. The starting issue is my number one priority, if the smoke fucks off it’s a bonus.

If the starting is bad, then you will always get a good dollop of smoke as it burns off the excess fuel. The quicker it starts, the less smoke. On a euro 4 diesel (like yours, about 10 years old or so), then I would expect light grey / blue grey smoke on every start up, that very soon clears. The colder the air temp, then the more the smoke.

Looking at those injectors and the way they tested, that is definitely money well spent and TBH you have avoided bigger issues in the future. 👍

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