AutoCruiseK334
Member
Could anyone help explain the sequence to remove the power steering pump from a 1990 Fiat Ducato 2.4TD (8144.21 engine)
- Model
- AutoCruise 5ET
- Year
- 1990
- Mileage
- 133868
Technical Power Steering
- Thread starter AutoCruiseK334
- Start date
- Replies 22
- Views 832
Currently reading:
Technical
Power Steering
If it is similar to the later 2.5 and 2.8 Sofim engines then from memory once the alternator belt is out the way all you have is the two hoses high pressure flow and lower pressure return to remove (so plenty of oil to drain out)and then two bolts that hold the flange against the main housing on the side of the engine that carries the injector pump etc. The opposite end to the power steering pump is the brake servo vacuum pump.
The power steering pump again from memory has a dog drive so you can just pull it away once the bolts are out, There is probably a rubber O ring and on reassembly you will need to locate the dog drive in position.
The last one I worked on I, discarded the power steering pump and used that dog drive and flange to mount a Jabsco Marine water pump as engine was going in to my boat and I made up a blanking plate on the brake servo vacuum pump end.
AutoCruiseK334
Member
Thank you so much for taking the time and trouble to reply. I will follow your directions and hopefully succeed.
Communicator
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In case they may be of any use, I am attaching details for the auxiliary assemblies for both the Iveco 2.8jtd, and the Fiat 2.8jtd, both of which are members of the Sofim 8140 family of engines.
AutoCruiseK334
Member
Followed the advice given. I have now removed the two securing nuts to release the steering pump but the side chassis member is too close to remove the pump. Need about 10cm drop to clear.
If I remove n/s and o/s engine mountings and leave the gearbox connected, to allow the engine to drop the 10cm needed, would any damage to other components occur?
Would seem to be a poor maintenance design.
What I do in cases like that is, as you say remove the engine mounting (can you just do the one at pump end by the way?) then as you carefully lower it I would rock the engine which can give you an idea if it is free or catching on something likely to cause damage.
Sorry I can't be more specific, although I had one Ducato most of my work on those Sofim engines was on Iveco Daily's which being RWD were much easier to work on.
AutoCruiseK334
Member
Will give that a try tomorrow, thank youWhat I do in cases like that is, as you say remove the engine mounting (can you just do the one at pump end by the way?) then as you carefully lower it I would rock the engine which can give you an idea if it is free or catching on something likely to cause damage.
Sorry I can't be more specific, although I had one Ducato most of my work on those Sofim engines was on Iveco Daily's which being RWD were much easier to work on.
Communicator
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Can you not support the engine via a jack and wooden pad under the sump, when removing RHS engine mounting. A screw jack is preferable. I would not want to leave the engine hanging without full support.
I agree, that was something like I visualised, only with a nice garage jack.
AutoCruiseK334
Member
Power steering pump now OUT. Had to release both N/S and O/S engine mounts and the speedo cable to allow enough drop for the pump to clear the chassis, nightmare of a job for something held in by two nuts.
Glad you won in the end.
Just out of curiosity why did the power steering pump need changing, I have had several of those basic 2.5 and 2.8 engines with that sort of pump on Iveco Daily's and a Ducato, many with over 200k miles on the speedo and never had any issue with the pumps?
AutoCruiseK334
Member
Intermittent loss of power steering, especially at slow speed. No fluid loss from the reservoir and the reservoir filter looks clean.Glad you won in the end.
Just out of curiosity why did the power steering pump need changing, I have had several of those basic 2.5 and 2.8 engines with that sort of pump on Iveco Daily's and a Ducato, many with over 200k miles on the speedo and never had any issue with the pumps?
I will try and get the pump tested to confirm before searching for a replacement.
Maybe dirt in the relief valve?
I assume correct power steering fluid, no air bubbles in system, etc.
It will not stop it working, but I have found sometimes the oil if over loaded or old can smell like pungent old chip oil if it has got too hot.
AutoCruiseK334
Member
I contacted Pro Power Steering and Weston Power Steering to ask if they could test and if necessary refurbish but both declined.
Probably more profit in supplying a cheap new unit these days where available. We used to always send radiators to be repaired or recored then it got to the point where they would ring up late in the day and say "oh the old unit is scrap, but we can supply a new one" by which time we had no choice if we wanted to get the customer back on the road.
I can't remember is there a relief valve on the pump, or anything that you can inspect without damaging, I don't think there is too much to them.
Any chance of getting a pump from a later engine if it has the same type fitting?
AutoCruiseK334
Member
Have now obtained a power steering pump from a later unit Type numbers and pressure (82) are identical, complete body and inlet / outlet identical but there is one other number that is different see photos.
Would be nice to know what they refer to.
8.91 against 10.99 and if it makes any difference.
Would be nice to know what they refer to.
8.91 against 10.99 and if it makes any difference.
I don't know, but to me if it physically fits and the pressure in Bar is the same as it says then I would use it.
Does the German writing bit mean it is the fabrication number?
"It appears to be German for Fabrik Nummer or a similar expression based on the word Fabrik (factory, manufacturer, works, etc.)."
Does the German writing bit mean it is the fabrication number?
"It appears to be German for Fabrik Nummer or a similar expression based on the word Fabrik (factory, manufacturer, works, etc.)."
AutoCruiseK334
Member
when I removed the steering pump I do not remember seeing a gasket between the pump and the engine. Question, does anyone know if there is one needed?
I was thinking an O ring in a groove?
It needs something as there is engine oil around the gears inside that housing it bolts too.
