Folks,
At some point I would like to add a Simota Induction Kit and saw recently on the Forum that a guy with a 2.2 had one done by Simon at JustRoadster (have been in touch with him to sort out one for a 3.0litre, but will need a bit of work, as he has not done one for an M54 engine yet).
Anyway, I notice that most leave the feed pipe from the antifreeze reservoir/header tank (don't know if this is the correct terminology or not) running over the new Simota as it was on the original air filter box. If you look at my existing picture you will see the pipe. It then leads to the top of the Radiator top feed. I think the looks untidy and spoils the appearance of the Simota, probably a bit fussy I know.
<a href="http://s766.photobucket.com/albums/xx30 ... -ROUTE.jpg" target="_blank"><img src="http://i766.photobucket.com/albums/xx30 ... -ROUTE.jpg" border="0" alt="Photobucket"></a>
A few questions:
1 - I seem to recall seeing a picture of another Zed model on the Forum which had run the pipe, (as I would propose to do) parallel to the wing adjacent to the passenger strut, forward to the front and along to the radiator. (refer to picture again - indicated by the red line)
I have a feeling the picture I saw was of a Z3M engine area – possibly an S50, where the pipe took this route. Does anybody have this picture they can post-up, showing the entire route?
Realoem shows the following for the Z3M S50 engine:
http://www.realoem.com/bmw/showparts.do ... g=17&fg=05
This does not tell me what I need to know from the diagram.
2 - Leading on from this is, does anyone have any idea why the pipe changes diameter from large to small and why BMW have used a pre-bent plastic pipe to run around the top of the reservoir? Was this just for aesthetic reasons?
3 - I also wondered if on the picture I am looking for, they had a different bent OEM pipe that I can order and then attach the larger radiator type hose to this or
4 - I may need to buy just the larger diameter radiator hose from a motor shop and tie/clip this to the bodywork and run it as shown by the red line on the picture.
I would be reluctant to rebend my existing small diameter plastic pipe and prefer to go the renew route.
I also the looked at realoem and could not find the pipe leading from the reservoir to the top of the radiator.
The view I actually found was for the left-hand drive car not the right, I know it only handed, but strange it is not shown correctly. May be it is located elsewhere on realoem ???
http://www.realoem.com/bmw/showparts.do ... g=17&fg=05
Not sure if this isn’t a rather trivial post really, apologies if it is.
Thanks for taking the time to read.
Re-routing Coolant Pipe From Header Tank To Top Of Radiator
Re-routing Coolant Pipe From Header Tank To Top Of Radiator
Last edited by Topaz Z3 on Sat 17 Apr, 2010 12:21, edited 1 time in total.
Simota fitted to an S50 engine with original pipework around engine bay rather than over airbox (even the later S54 engine has te pipework over the airbox rather than around engine bay 
)
another S50 engine showing the pipework route with OEM airbox
I'm working on a cusotmised Simota solution for my S54 engine so will also have this problem.
I think using S50 pipework to reroute around the engine bay is worth exploring.
)another S50 engine showing the pipework route with OEM airbox
I'm working on a cusotmised Simota solution for my S54 engine so will also have this problem.
I think using S50 pipework to reroute around the engine bay is worth exploring.
Jon,
I am thinking, if I bought the S50 engine pre-bent pipe (which I think is plastic), I could cut this pipe (shown on the 'pistonheads picture') at the last, but one bend before it joins the rubber pipe into the white reservoir header tank.
I could then clip on the larger diameter rubber pipe and straight onto my black header tank.
Couple of other points to run up the flag pole:
1 - If I need to adjust / rebend the small diameter plastic pipe, is this feasible with a little heat applied or is this likely to cause any failure in the pipe and cause it any undue stress.
2 - I am concened about the severity of the 'S' bend of the flexible rubber hose as it enters the top of the radiator. Is this why BMW changed the route, and made it more direct.
3 - Would rather bend the small pipe away from the front of the car and then have one right-angle flexible hose into the radiator.
4 - May be it is just as easy to use the rubber pipe for the whole route ???
5 - Is there a pressure issue due to the oem part going to a small pipe then larger, i.e. this is intentional and is required ???
Something to mull over whilst I paint the garden fence this afternoon.
I am thinking, if I bought the S50 engine pre-bent pipe (which I think is plastic), I could cut this pipe (shown on the 'pistonheads picture') at the last, but one bend before it joins the rubber pipe into the white reservoir header tank.
I could then clip on the larger diameter rubber pipe and straight onto my black header tank.
Couple of other points to run up the flag pole:
1 - If I need to adjust / rebend the small diameter plastic pipe, is this feasible with a little heat applied or is this likely to cause any failure in the pipe and cause it any undue stress.
2 - I am concened about the severity of the 'S' bend of the flexible rubber hose as it enters the top of the radiator. Is this why BMW changed the route, and made it more direct.
3 - Would rather bend the small pipe away from the front of the car and then have one right-angle flexible hose into the radiator.
4 - May be it is just as easy to use the rubber pipe for the whole route ???
5 - Is there a pressure issue due to the oem part going to a small pipe then larger, i.e. this is intentional and is required ???
Something to mull over whilst I paint the garden fence this afternoon.
