<div dir="ltr"><div>Pump is the Australian Davies, Craig. Purchased it from Summit in 2018 and have had it installed for over 2 years now. Paid $188 at the time. Bought the basic EWP 80 and none of their controllers that they push. No need for a fancy controller IMO if you are retaining the existing mechanical one and only using it for traffic duty. I have a relay and a switch under the dash that controls the EWP and an electric fan as well. If the engine is really hot I leave the pump on for a minute or so after shutting down. See link to the pump manufacturer. Also photo of it installed - not too easy to distinguish - it is circular and black below the steering column.<br></div><div><br></div><div><a href="https://daviescraig.com/electric-water-pumps" target="_blank">https://daviescraig.com/electric-water-pumps</a></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Mar 6, 2021 at 7:34 PM <<a href="mailto:sentenac.rw@gmail.com" target="_blank">sentenac.rw@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Roger, I would be very interested in photos and pump details of the<br>
electric water pump you installed.<br>
<br>
-Roland<br>
<br>
On Sat, 6 Mar 2021 17:25:24 -0800, you wrote:<br>
<br>
> I concur that at low RPM the flow rate is significantly reduced - as it<br>
>should be with this type of pump - flow is proportional to speed. On my<br>
>BJ8 I measure oil temp and top rad. hose temp plus some other temps. Single<br>
>gauge with switches<br>
>So, I added an electric water pump (EWP) that I manually switch on when<br>
>approaching traffic. I use the same switch to switch on an electric fan. My<br>
>experience is that the EWP is by far better than just an electric fan - you<br>
>need to move the water through the rad. Very noticeable to prevent heat<br>
>soak too when you shut down the engine and you can see the temp dropping.<br>
>The EWP goes in the bottom hose and is quite inconspicuous. Took about 3<br>
>hrs to install. In series with the mechanical pump and literature says<br>
>little resistance when off eg when cruising and RPM higher and EWP not<br>
>required.<br>
>Can post photo if anyone is interested plus pump details.<br>
>rg<br>
><br>
><br>
>On Sat, Mar 6, 2021 at 4:59 PM Bob Spidell via Healeys <<br>
><a href="mailto:healeys@autox.team.net" target="_blank">healeys@autox.team.net</a>> wrote:<br>
><br>
>> Anyone tried a smaller diameter pulley on the pump?<br>
>><br>
>><br>
>> On 3/6/2021 4:49 PM, Simon Lachlan via Healeys wrote:<br>
>><br>
>> Using an original type stat helps too ie the one with a sleeve. Helps, not<br>
>> cures all.<br>
>><br>
>> Simon<br>
>><br>
>><br>
>><br>
>> *From:* Healeys <<a href="mailto:healeys-bounces@autox.team.net" target="_blank">healeys-bounces@autox.team.net</a>><br>
>> <<a href="mailto:healeys-bounces@autox.team.net" target="_blank">healeys-bounces@autox.team.net</a>> *On Behalf Of *warthodson--- via Healeys<br>
>> *Sent:* 06 March 2021 23:41<br>
>> *To:* <a href="mailto:rfbegani@gmail.com" target="_blank">rfbegani@gmail.com</a>; <a href="mailto:michaelsalter@gmail.com" target="_blank">michaelsalter@gmail.com</a>; <a href="mailto:bspidell@comcast.net" target="_blank">bspidell@comcast.net</a>;<br>
>> <a href="mailto:healeys@autox.team.net" target="_blank">healeys@autox.team.net</a><br>
>> *Subject:* Re: [Healeys] Overheating<br>
>><br>
>><br>
>><br>
>> It seems to me that switching from a 7 PSI radiator cap to a 15PSI cap is<br>
>> not a solution to an overheating problem but rather a band-aid.<br>
>> Gary Hodson<br>
>><br>
>> -----Original Message-----<br>
>> From: <a href="mailto:rfbegani@gmail.com" target="_blank">rfbegani@gmail.com</a><br>
>> To: 'Michael Salter' <<a href="mailto:michaelsalter@gmail.com" target="_blank">michaelsalter@gmail.com</a>>; 'Bob Spidell' <<br>
>> <a href="mailto:bspidell@comcast.net" target="_blank">bspidell@comcast.net</a>>; 'Ahealey help' <<a href="mailto:healeys@autox.team.net" target="_blank">healeys@autox.team.net</a>><br>
>> Sent: Sat, Mar 6, 2021 3:58 pm<br>
>> Subject: [Healeys] Overheating<br>
>><br>
>> Bob & Mike:<br>
>><br>
>><br>
>><br>
>> You both may have seen my requests on overheating of my BJ8 and the<br>
>> response from the group. As a result, I purchased an infrared thermometer<br>
>> to determine if my water gauge was giving accurate readings. The<br>
>> thermometer gun told me that my water gauge was 30 degrees higher than the<br>
>> temperature of the sensor attached to the block. At the same time, I<br>
>> noticed my gauge will show 120 degrees at rest instead of going down to 90<br>
>> degrees which would indicate a 30-degree high reading. In May when I leave<br>
>> for cool Michigan, I will send the gauge to Nisonger to be rebuilt.<br>
>><br>
>><br>
>><br>
>> I began to test the temperature of the water going through the cooling<br>
>> system at the inlet to and outlet from the block, inlet and outlet to the<br>
>> radiator and the upper and lower hoses while the engine is running at idle<br>
>> and at 2-3 Thousand rpm. The chart I created to record these temperatures<br>
>> allowed me to produce observations or averages because the flow of the<br>
>> water is dependent upon the rpms of the engine. The engine has overheated<br>
>> all of the 40 years I have owned it and has only 1000 miles on the new<br>
>> speedo since rebuilding to 20 over.<br>
>><br>
>><br>
>><br>
>> At the radiator inlet 134 outlet 85 at high rpms with electric fan<br>
>> operating.<br>
>><br>
>> inlet 103 outlet 94 at idle rpms with electric fan<br>
>> operating.<br>
>><br>
>><br>
>><br>
>> The above temperatures are recorded at the inlet and all along the hoses.<br>
>><br>
>><br>
>><br>
>> These temperatures indicate the pump is circulating water with sufficient<br>
>> gallons to cool the engine only when the engine is at high rpms. At idle<br>
>> the pump does not circulate sufficient water to keep the engine cool. This<br>
>> is especially true when you have been operating the engine at high speed<br>
>> and come down to 30 – 40 mph and stop and go traffic. Maybe the real<br>
>> answer is to install an electric pump for constant cooling water?<br>
>><br>
>><br>
>><br>
>> In the past week, I have installed a large Dorman coolant recovery tank<br>
>> and a new 7 psi 1 inch radiator cap because I learned that our radiators<br>
>> have a long neck. Both those changes have reduced my problem of very high<br>
>> overheating and resulting boiling over. In addition, when my water gauge<br>
>> shows 212 degrees the water temperature is actually 30 degrees less or<br>
>> approximately 185 degrees. Also, I am not boiling over and loosing<br>
>> coolant. Nevertheless, the engine water temperature is still spiking to<br>
>> 210 plus degrees true when coming off highway speeds.<br>
>><br>
>><br>
>><br>
>> In my review of various sites, the radiator equipment suppliers and others<br>
>> are recommending increasing the pressure in the classic car systems to 15<br>
>> psi plus, and coolant recovery tanks “if your coolant system, radiator,<br>
>> hoses etc. is new” and therefore can hold the pressure. Unfortunately, I<br>
>> have not found any maker of a 1 inch depth x 2.33 inch diameter radiator<br>
>> cap except our 7 psi cap so I can try such a pressurized system.<br>
>><br>
>><br>
>><br>
>> Another suggestion on an older discussion at the British Car Forum<br>
>> indicated some of the Ontario car owners had switched to Evans Waterless<br>
>> Coolant rather than 50/50 coolant water mixture.<br>
>><br>
>><br>
>><br>
>> I still have no idea why a minority of our group has overheating<br>
>> problems. More ideas?<br>
>><br>
>><br>
>><br>
>> Regards,<br>
>><br>
>><br>
>><br>
>> Bob Begani 67 BJ8<br>
>><br>
>><br>
>><br>
>><br>
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