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Re: Megabusa cooling issues
by jo white
::
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Maybe try and bleed the system, byway of usung a header of water (highrer than the highest point of system), this can easily be achieved using a milk carton/funnel stuffed into top of rad or swirl pot, keep pouring in the water and bleed air from suitable hose/union, make sure thermostat if fitted is open (warm engine). You should also consider the ducting of air as this is sometimes overlooked, and also some stone gaurds if fitted are very restricitve.
jo
--- In bike-engined-cars@..., "Kelly, Ian" <kellyi@...> wrote:
>
> Hi Steve,
>
>
>
> At a 70mph cruise my R1 Fury is around 75 degs water temp, 60 degs oil
> temp. Water temp rises to 80-85 if pootling around town. Where are the
> oil and water temp sensors?
>
>
>
> I've never seen my oil above 80 degrees, maybe I'm not trying hard
> enough!
>
>
>
> If it's not boiled over, then something sounds weird. Have you flushed
> out the system and checked for air locks? Wouldn't throw money at a new
> rad unless you have real suspicions over the existing one.
>
>
>
> Good luck,
>
>
>
> Ian
>
>
>
> ________________________________
>
> From: bike-engined-cars@...
> [mailto:bike-engined-cars@...] On Behalf Of steve169548
> Sent: 26 June 2009 09:26
> To: bike-engined-cars@...
> Subject: [bike-engined-cars] Megabusa cooling issues
>
>
>
>
>
>
>
>
> I have built a Megabusa and have covered approx 300 miles in now and
> seem to be having cooling issues.
>
> I have used the SBD/Nova Racing dry sump which means I have to run a
> electric water pump as the scavenge pump is driven from the original
> water pump take off.
>
> Initially I was using the Westfield supplied VDO sensors with the Race
> Technology Digidash but had really odd readings for oil pressure,water
> temp and fuel level.This turned out to be the calibration file supplied
> by Westfield(they admitted it was mainly guesswork!!)
>
> I have now swapped over to the Race Technology recommended Bosch sensors
> and it seems a lot better.
> I used the car on Saturday and went round the M25 to Cobham Proving
> Ground (a 30 mile trip) and whilst I was on the motorway the temps crept
> up to 113 degs.This was just cruising at 70 mph and pulling 6000 rpm.
> I have swopped the cooling fan switch for one that comes on at a lower
> temperature and have been all round the car witha infrared temp gun
> trying to check to see if I really am seeing such high temps but
> obviously I am only measuring the temp of the component not the actual
> coolant level.
>
> In all this checking/testing the car has not boiled over ever,the
> highest oil temp has never exceeded 100 degs.
>
> I am at a loss what to do next other than spend even more money and get
> the RadTec radiator they make which is a direct replacement for ther
> existing Polo rad.
>
> Just to add some more info I was using the Davies Craig Digital water
> pump controller but have bypassed this now and the pump is running
> constantly.
>
> Any suggestions please as I have a driving day booked at North Weald on
> July 10th.
>
> Thanks
>
> Steve
>
>
>
>
> _____________________________________________________________________
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jo
--- In bike-engined-cars@..., "Kelly, Ian" <kellyi@...> wrote:
>
> Hi Steve,
>
>
>
> At a 70mph cruise my R1 Fury is around 75 degs water temp, 60 degs oil
> temp. Water temp rises to 80-85 if pootling around town. Where are the
> oil and water temp sensors?
>
>
>
> I've never seen my oil above 80 degrees, maybe I'm not trying hard
> enough!
>
>
>
> If it's not boiled over, then something sounds weird. Have you flushed
> out the system and checked for air locks? Wouldn't throw money at a new
> rad unless you have real suspicions over the existing one.
>
>
>
> Good luck,
>
>
>
> Ian
>
>
>
> ________________________________
>
> From: bike-engined-cars@...
> [mailto:bike-engined-cars@...] On Behalf Of steve169548
> Sent: 26 June 2009 09:26
> To: bike-engined-cars@...
> Subject: [bike-engined-cars] Megabusa cooling issues
>
>
>
>
>
>
>
>
> I have built a Megabusa and have covered approx 300 miles in now and
> seem to be having cooling issues.
>
> I have used the SBD/Nova Racing dry sump which means I have to run a
> electric water pump as the scavenge pump is driven from the original
> water pump take off.
>
> Initially I was using the Westfield supplied VDO sensors with the Race
> Technology Digidash but had really odd readings for oil pressure,water
> temp and fuel level.This turned out to be the calibration file supplied
> by Westfield(they admitted it was mainly guesswork!!)
>
> I have now swapped over to the Race Technology recommended Bosch sensors
> and it seems a lot better.
> I used the car on Saturday and went round the M25 to Cobham Proving
> Ground (a 30 mile trip) and whilst I was on the motorway the temps crept
> up to 113 degs.This was just cruising at 70 mph and pulling 6000 rpm.
> I have swopped the cooling fan switch for one that comes on at a lower
> temperature and have been all round the car witha infrared temp gun
> trying to check to see if I really am seeing such high temps but
> obviously I am only measuring the temp of the component not the actual
> coolant level.
>
> In all this checking/testing the car has not boiled over ever,the
> highest oil temp has never exceeded 100 degs.
>
> I am at a loss what to do next other than spend even more money and get
> the RadTec radiator they make which is a direct replacement for ther
> existing Polo rad.
>
> Just to add some more info I was using the Davies Craig Digital water
> pump controller but have bypassed this now and the pump is running
> constantly.
>
> Any suggestions please as I have a driving day booked at North Weald on
> July 10th.
>
> Thanks
>
> Steve
>
>
>
>
> _____________________________________________________________________
> ************************************************************************
> ****
> ********
> This message has been checked for all known viruses by the Cable &
> Wireless
> E-mail Virus Protection service, powered by MessageLabs.
>
> ************************************************************************
> **
> ********
>
>
> Visit TDG at www.tdg.eu.com for more information.
>
> This electronic message is intended only for use by the addressee.
> It may contain confidential or privileged information.
> If you receive this message in error, please advise the sender
> immediately. Please note that we cannot guarantee that this message
> or any attachment is virus free or has not been intercepted and amended.
>
> TDG (UK) Ltd
> Registered Office: Euroterminal, Westinghouse Road, Trafford Park, Manchester, M17 1PY.
> Registered in England: 540403
>
> This email has been scanned by the MessageLabs Email Security System.
> For more information please visit http://www.messagelabs.com/email
>
> [Non-text portions of this message have been removed]
>
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