rickety365
New member
- Joined
- Aug 12, 2019
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Hi
Would appreciate some thoughts on an issue I have with a 1990 Ducato 1.9TD based motorhome:
1990 Ducato R/90 (14Q) base
1.9TD engine - code 280A1.000
80'000km (60'000 miles) registered
This engine has always run hot/been strained as it's way under powered - 60KW/80BHP isn't much for a 3.1 ton vehicle with aerodynamics of a barn. However it always ran fine (if hot under load).
Very recently I diligently changed the timing belt. Bit of pig to find the timing marks but got there. After the engine ran fine, and was used on a 400km trip without any issues.
Van was then parked (on sloped drive, engine uphill) for 2 months. Went to start and was very difficult to get running, poor power and lots of smoke/noise.
My first thought was a air lock in fuel, due to being on slope + very hot weather (38C day before). So I dragged it onto flat with another car in hope it would purge. No joy.
After running for a bit it conked out and refuses to restart. After endless testing (flow at fuel filter, injectors etc) without any reason, I decide to recheck timing just in case.
Was shocked to find it had dropped timing by 1-2 teeth (crank to camshaft). The new belt also had some threads on edge, and a doggy looking tooth (pic attached). So it seems it somehow the belt skipped. Given it was new, and had run fine, my best guess is something failed and jammed in engine/injector pump - rather than the belt itself - as this still had plenty of tension/grip.
I installed another new belt, tripled check timing and tried to start with fingers crossed. But still no joy, which suggests whatever threw the timing in first place was broken and/or the mistiming has done in valves.
My plan next is to run:
1. Compression test to see if internal damage in engine. Will pull rocker cover as well, and maybe put a endoscrope into cylinders if can get access through injector hole.
2. If #1 looks ok, strip off the injector pump as really last thing that can be wrong
Would appreciate any ideas on what else to look for or possible causes It's a bizarre fault as everything was fine then total failure in startup. Hard to believe an injector pump failure would cause a timing skip, and it still seems to turn/pump ok as best I can tell.
If I can't find problem or it is internal engine damage it will probably go to scrapyard - which will make my children quite :sad:
One other speculation I had was maybe caused by hydrolock as we also had a huge rain storm just before starting. Again if on slope maybe possible the air intake was flooded and engine pulled in water at start up.... However that's seems a long shot....
Cheers
Rick
Would appreciate some thoughts on an issue I have with a 1990 Ducato 1.9TD based motorhome:
1990 Ducato R/90 (14Q) base
1.9TD engine - code 280A1.000
80'000km (60'000 miles) registered
This engine has always run hot/been strained as it's way under powered - 60KW/80BHP isn't much for a 3.1 ton vehicle with aerodynamics of a barn. However it always ran fine (if hot under load).
Very recently I diligently changed the timing belt. Bit of pig to find the timing marks but got there. After the engine ran fine, and was used on a 400km trip without any issues.
Van was then parked (on sloped drive, engine uphill) for 2 months. Went to start and was very difficult to get running, poor power and lots of smoke/noise.
My first thought was a air lock in fuel, due to being on slope + very hot weather (38C day before). So I dragged it onto flat with another car in hope it would purge. No joy.
After running for a bit it conked out and refuses to restart. After endless testing (flow at fuel filter, injectors etc) without any reason, I decide to recheck timing just in case.
Was shocked to find it had dropped timing by 1-2 teeth (crank to camshaft). The new belt also had some threads on edge, and a doggy looking tooth (pic attached). So it seems it somehow the belt skipped. Given it was new, and had run fine, my best guess is something failed and jammed in engine/injector pump - rather than the belt itself - as this still had plenty of tension/grip.
I installed another new belt, tripled check timing and tried to start with fingers crossed. But still no joy, which suggests whatever threw the timing in first place was broken and/or the mistiming has done in valves.
My plan next is to run:
1. Compression test to see if internal damage in engine. Will pull rocker cover as well, and maybe put a endoscrope into cylinders if can get access through injector hole.
2. If #1 looks ok, strip off the injector pump as really last thing that can be wrong
Would appreciate any ideas on what else to look for or possible causes It's a bizarre fault as everything was fine then total failure in startup. Hard to believe an injector pump failure would cause a timing skip, and it still seems to turn/pump ok as best I can tell.
If I can't find problem or it is internal engine damage it will probably go to scrapyard - which will make my children quite :sad:
One other speculation I had was maybe caused by hydrolock as we also had a huge rain storm just before starting. Again if on slope maybe possible the air intake was flooded and engine pulled in water at start up.... However that's seems a long shot....
Cheers
Rick