I had my injector pump serviced many years ago and the tractor started without any issues. Now those years later( 10 possibly) I decided to see if I could start it. My diesel tank had been cleaned out, painted and stored away so it was clean and I had to fit the tap and filter which was also clean. Yesterday I poured 5 litres of diesel into the tank and started bleeding. Unfortunately I did not drain the old fuel in the fuel filter and injector pump, so when I was bleeding I noticed the fuel was really dark in colour. I removed the injector lines and noticed a poor supply of fuel from number one and two outlet and nothing from 3 of the injector. At one stage I did notice some white smoke from the exhaust but that has stopped. I poured another 5 litres of fuel into the tank this evening just to try and increase the pressure as per the workshop manual. I then decided to remove the fuel filter and check to see what goes. The fuel that I collected was the dark brown colour, but the filter was surprisingly clean. I checked the supply of fuel to the filter before replacing the filter cup and there was a good supply. I then followed the bleeding procedure and started cranking and noticed a couple of squirts from 1 and 2 outlets of the pump but 3 still has an issue. I read in a past thread back in about 2010 something about the rail must be free to move behind the rectangular cover above the bleeding screws/bolts. Mine is rather resistant, so am not sure whether that is the problem. Now to the point, what does one do to unblock the outlets, I am very reluctant to remove the pump as it is a terrible job? Sorry about the long story but that's how it is. I look forward to any advice thanks.
Mervyn Spencer
Simms Injector Pump has Issues.
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Mervyn Spencer
- True Blue
- Posts: 831
- Joined: Wed Apr 16, 2008 3:34 pm
- Location: South Africa
Re: Simms Injector Pump has Issues.
Hello Mervyn
Old fuel is often not a problem as I have seen (on youtube) old engines stood outside for years start. What would be a problem is moisture, if there was any water in the fuel then there would be rust and a sticky pump.
This is my expensive lesson: My super Dexta was running, reasonably well, I took the pump off tipped the fuel out of it and left it on my bench, cleaned it up and painted it, put it back all in about 3 or 4 months.
the tractor wouldn't start, little or no white vapour, the rack was stiff.
Removed pump and took it local Diesel specialist, first he said I shouldn't have painted it, then I shouldn't have left it open to the air. The paint all had to come off which added time and cost, then all the internals cleaned and reassembled, very fine rust had occurred on some of the surfaces. all was well in the end except my bank balance. the lesson is keep the pump full of clean fuel.
Hope you fix it for less money than I .
Regards
Ian
Old fuel is often not a problem as I have seen (on youtube) old engines stood outside for years start. What would be a problem is moisture, if there was any water in the fuel then there would be rust and a sticky pump.
This is my expensive lesson: My super Dexta was running, reasonably well, I took the pump off tipped the fuel out of it and left it on my bench, cleaned it up and painted it, put it back all in about 3 or 4 months.
the tractor wouldn't start, little or no white vapour, the rack was stiff.
Removed pump and took it local Diesel specialist, first he said I shouldn't have painted it, then I shouldn't have left it open to the air. The paint all had to come off which added time and cost, then all the internals cleaned and reassembled, very fine rust had occurred on some of the surfaces. all was well in the end except my bank balance. the lesson is keep the pump full of clean fuel.
Hope you fix it for less money than I .
Regards
Ian
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Mervyn Spencer
- True Blue
- Posts: 831
- Joined: Wed Apr 16, 2008 3:34 pm
- Location: South Africa
Re: Simms Injector Pump has Issues.
Hello Ian,
Thank you for your interesting story and experience. My Dexta is in one of my garages and been nice and snug for about 10 years. I must have used 2 litres of diesel trying to start but no joy. Something said to me that I should check the oil in the pump(mechanical). Like old mother Hubbard the pump was bare. I happened to wipe my finger across the top of the drain plug and noticed it was wet. Now some time ago I put up a post about the plug leaking, but thought I had found the problem. I then proceeded to fill the pump with oil replaced the plug and tried start the Dexta again, now none of the delivery ports were spurting fuel. you know what an issue it is to remove that damn pump so I was hoping not to have to and by chance the pump would start working. I then decided to check the drain plug and the leak was still there . Now the bad news, I took hold of my spanner and decided to just try and give it a slight nip and the stem where the plug fits just shattered, well I could have cried. Well I had no option but to remove the flippen pump and did I battle. Anyway I took it to the specialist and pleaded with them to make a concerted effort to mend it. I received a call later to tell me that the pump needs to be stripped and sent to the engineers to see if they can make a plan. So I'm waiting with baited breath that something can be done.
Incidentally my rack was also stiff so I tried some easing fluid but no go. I'm surprised that you were told that you should not have painted the pump, any specific reason? Mine is also painted but was done on the Dexta years ago. I'm sorry to hear about your bank balance but imagine if you had had to buy a new pump.
I am glad to hear that you have had your pump sorted out and true, I hope mine does not break the bank, will keep you posted.
Kind regards
Mervyn.
Thank you for your interesting story and experience. My Dexta is in one of my garages and been nice and snug for about 10 years. I must have used 2 litres of diesel trying to start but no joy. Something said to me that I should check the oil in the pump(mechanical). Like old mother Hubbard the pump was bare. I happened to wipe my finger across the top of the drain plug and noticed it was wet. Now some time ago I put up a post about the plug leaking, but thought I had found the problem. I then proceeded to fill the pump with oil replaced the plug and tried start the Dexta again, now none of the delivery ports were spurting fuel. you know what an issue it is to remove that damn pump so I was hoping not to have to and by chance the pump would start working. I then decided to check the drain plug and the leak was still there . Now the bad news, I took hold of my spanner and decided to just try and give it a slight nip and the stem where the plug fits just shattered, well I could have cried. Well I had no option but to remove the flippen pump and did I battle. Anyway I took it to the specialist and pleaded with them to make a concerted effort to mend it. I received a call later to tell me that the pump needs to be stripped and sent to the engineers to see if they can make a plan. So I'm waiting with baited breath that something can be done.
Incidentally my rack was also stiff so I tried some easing fluid but no go. I'm surprised that you were told that you should not have painted the pump, any specific reason? Mine is also painted but was done on the Dexta years ago. I'm sorry to hear about your bank balance but imagine if you had had to buy a new pump.
I am glad to hear that you have had your pump sorted out and true, I hope mine does not break the bank, will keep you posted.
Kind regards
Mervyn.
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Mervyn Spencer
- True Blue
- Posts: 831
- Joined: Wed Apr 16, 2008 3:34 pm
- Location: South Africa
Re: Simms Injector Pump has Issues.
Hi Ian,
I collected my pump from the service man on Friday, the drain stem underneath was rebuilt to the best of their ability and was told that there was some sticky residue inside the pump. Anyway I fitted it back on Friday night, what a battle, with age creeping along my poor back was broken. On Saturday I replaced all the timing cover plates and eventually got the Dexta to start in the late evening. She ran rather strangely initially surging randomly and producing heaps of smoke. My pump is a mechanical so the surging is not that of the pneumatic pump. I tried starting her again yesterday Sunday and she started immediately but still producing blowby rather heavily. Obviously I will have to get her rebuilt which I was aware of those years back when I was still very enthusiastic.
My question to those people who have had to have a rebuild, what do you remove from the engine before taking it to the rebuilders? I'm referring to the dynamo, starter and that dreaded injector pump.
I look forward to any suggestions.
Mervyn Spencer.
I collected my pump from the service man on Friday, the drain stem underneath was rebuilt to the best of their ability and was told that there was some sticky residue inside the pump. Anyway I fitted it back on Friday night, what a battle, with age creeping along my poor back was broken. On Saturday I replaced all the timing cover plates and eventually got the Dexta to start in the late evening. She ran rather strangely initially surging randomly and producing heaps of smoke. My pump is a mechanical so the surging is not that of the pneumatic pump. I tried starting her again yesterday Sunday and she started immediately but still producing blowby rather heavily. Obviously I will have to get her rebuilt which I was aware of those years back when I was still very enthusiastic.
My question to those people who have had to have a rebuild, what do you remove from the engine before taking it to the rebuilders? I'm referring to the dynamo, starter and that dreaded injector pump.
I look forward to any suggestions.
Mervyn Spencer.