603 with head mounted sls pump
603 with head mounted sls pump
Is there a way to mount the sls pump to a 603 head instead of using the dual pump?
The main reason I'm asking is I'm trying to plan out the engine bay of a 603 in a s123, and keeping the SLS system operational. The SLS reservior on the s123 (except for '85) appears to be only on the passenger's side while the 603 in the 87 s124 configuration has the dual pump and SLS reservoir on the driver's side. I'd like to know if I can keep things on the passenger's side (who knows where) or if I'm forced to route the high pressure line/low pressure return across the engine bay.
![[Image: 822372969_6_1080x720_mercedes-w124-30-d-...kazja-.jpg]](http://img39.otomoto.pl/images_otomotopl/822372969_6_1080x720_mercedes-w124-30-d-automat-stan-dobry-okazja-.jpg)
1983 300TD
1984 300D
1995 E300 (sold)
I know that that the 603 found in 124 wagons and in w140 sd models had a dual power steering/sls pump at least within the US. I've seen a few examples of a non-turbo 603 having the older style (read: s123/617) pump bolted to the head. Does anyone know if the head is any different?
Is there a way to mount the sls pump to a 603 head instead of using the dual pump?
The main reason I'm asking is I'm trying to plan out the engine bay of a 603 in a s123, and keeping the SLS system operational. The SLS reservior on the s123 (except for '85) appears to be only on the passenger's side while the 603 in the 87 s124 configuration has the dual pump and SLS reservoir on the driver's side. I'd like to know if I can keep things on the passenger's side (who knows where) or if I'm forced to route the high pressure line/low pressure return across the engine bay.
1983 300TD
1984 300D
1995 E300 (sold)
n/a engines always have a cam-driven hydraulic pump. The valve cover is different, as is the valve cover gasket. The difference is that the cam-drive covers have a sem-circle cutout to allow the flange on which the pump is mounted to be instalkled & sealed.
However, there is one obstacle: that is the cooling fan. On the W124 chassis with this cam driven pump it's VERY tight to install the cooling fan & cowling. On the 603 Turbo it's impossible. The 603 Turbo has a bigger metal fan which needs to be installed together with the cowling & fan clutch - it would be impossible with the SLS pump mounted on the head. And there might even be clearance issues with the fan, I've not tried it.
Though fabricating some hydraulic lines should not be that big of a problem?? They'r metric and can be joined with ermeto couplings, I've done the same when re-routing the SLS reservoir on my 124 Coupé (needed space for Turbo air filter housing).
![[Image: taxi-motor-1.jpg]](http://jan-wulf.de/wp-content/uploads/2014/11/taxi-motor-1.jpg)
![[Image: hydro-1.jpg]](http://jan-wulf.de/wp-content/uploads/2014/11/hydro-1.jpg)
^you can just about see the shaft runing from the cam gear which required the cut-out in the cylinder head. If I was you, I'd see if you can get away with removing/installing (and runing) the big Turbo cooling fan without pulling the radiator and then go from there... But I'd keep the big fan. Hell, what do I care? If you can live with pulling the radiator to remove the fan for changing a belt or something - do whatever floats your boat
In short: you need
- a different valve cover,
- the jack-shaft runing from the cam gear,
- a "floating" coupler to connect pump & shaft
- and the pump flange to install the SLS pump on the cylinder head.
- And a different cam gear bolt (allen hex)
DiseaselWeasel
01-04-2016, 05:01 PM #2Hi!
n/a engines always have a cam-driven hydraulic pump. The valve cover is different, as is the valve cover gasket. The difference is that the cam-drive covers have a sem-circle cutout to allow the flange on which the pump is mounted to be instalkled & sealed.
However, there is one obstacle: that is the cooling fan. On the W124 chassis with this cam driven pump it's VERY tight to install the cooling fan & cowling. On the 603 Turbo it's impossible. The 603 Turbo has a bigger metal fan which needs to be installed together with the cowling & fan clutch - it would be impossible with the SLS pump mounted on the head. And there might even be clearance issues with the fan, I've not tried it.
Though fabricating some hydraulic lines should not be that big of a problem?? They'r metric and can be joined with ermeto couplings, I've done the same when re-routing the SLS reservoir on my 124 Coupé (needed space for Turbo air filter housing).
^you can just about see the shaft runing from the cam gear which required the cut-out in the cylinder head. If I was you, I'd see if you can get away with removing/installing (and runing) the big Turbo cooling fan without pulling the radiator and then go from there... But I'd keep the big fan. Hell, what do I care? If you can live with pulling the radiator to remove the fan for changing a belt or something - do whatever floats your boat
In short: you need
- a different valve cover,
- the jack-shaft runing from the cam gear,
- a "floating" coupler to connect pump & shaft
- and the pump flange to install the SLS pump on the cylinder head.
- And a different cam gear bolt (allen hex)
I'm getting ready to put this 603 in a w123 and I don't think I'll be able to use the original fan (electric fan setup probably). But with this much modification I think I'll just figure out how to route the SLS lines.
1983 300TD
1984 300D
1995 E300 (sold)
Thanks for the reply.
I'm getting ready to put this 603 in a w123 and I don't think I'll be able to use the original fan (electric fan setup probably). But with this much modification I think I'll just figure out how to route the SLS lines.
1983 300TD
1984 300D
1995 E300 (sold)
https://goo.gl/photos/E3Uqvr3BG9g2DuHS6
https://goo.gl/photos/w7DKMyMjtvUSE4kv7
https://goo.gl/photos/ZbWRfJU2Tr1zBKpN9
https://goo.gl/photos/EEocDMP2W9DKgh9o8
https://goo.gl/photos/i8DHLWiGRnUFZmVQ8
Mercedes W123 240D (om616->om606)
Audi A6 C4 2,8 Quattro (AAH)
EX Audi 80 Competition
EX Ford Scorpio 2,9 4x4
in few days i will finish om606 swap into w123 chassis. I think it is possible to mount om603 with sls system, but You must cut oil pan and mowe engine as far as it posible. in m case i use om603 w126 engine mount to suite engine to w123 chassis i made special spacer for it. We have one problem with standard rubber motor mounts, i bought them new and their was to soft and we have problem with clearance between oil sump and crossmember. I glue them and everything fits correctly. Here you got photos:
https://goo.gl/photos/E3Uqvr3BG9g2DuHS6
https://goo.gl/photos/w7DKMyMjtvUSE4kv7
https://goo.gl/photos/ZbWRfJU2Tr1zBKpN9
https://goo.gl/photos/EEocDMP2W9DKgh9o8
https://goo.gl/photos/i8DHLWiGRnUFZmVQ8
Mercedes W123 240D (om616->om606)
Audi A6 C4 2,8 Quattro (AAH)
EX Audi 80 Competition
EX Ford Scorpio 2,9 4x4
![[Image: PAS%20pump%20mod.jpg]](http://s1250.photobucket.com/user/Mercedes_Power/media/PAS%20pump%20mod.jpg.html)
Edit: I see your predicament and realise my post is nullified..
Installed:
OM606/722.6, big IC, W220 brakes.
Planned:
DIY manifold, compound, 722.6 controller, built IP.
[i]Less rust.. [/i]
DiseaselWeasel
01-05-2016, 05:13 PM #6Um yeah, and they only have a single fluid feed for a shared PAS/SLS circuit, I think? On earlyer chassis, steering & SLS need different fluids resp. seperate fluid circuits
(01-05-2016, 05:13 PM)DiseaselWeasel Um yeah, and they only have a single fluid feed for a shared PAS/SLS circuit, I think? On earlyer chassis, steering & SLS need different fluids resp. seperate fluid circuits
2 circuits with a common res yeah
Installed:
OM606/722.6, big IC, W220 brakes.
Planned:
DIY manifold, compound, 722.6 controller, built IP.
[i]Less rust.. [/i]
(01-05-2016, 05:13 PM)DiseaselWeasel Um yeah, and they only have a single fluid feed for a shared PAS/SLS circuit, I think? On earlyer chassis, steering & SLS need different fluids resp. seperate fluid circuits
2 circuits with a common res yeah
Installed:
OM606/722.6, big IC, W220 brakes.
Planned:
DIY manifold, compound, 722.6 controller, built IP.
[i]Less rust.. [/i]
1 Guest(s)
1 Guest(s)