Posted 21 November 2019 - 04:45 AM
But, and there is always a but... She runs very hot after driving for longer than 30 minutes or so. So here is what I have done/replaced before getting her to run again. New temp sender, new oil pressure sender, new thermostat 74 degree C, new plugs, oil filter, oil (serviced) new oil pump, new water pump, changed the standard air filter to the cone pancake type. Engine specs are 1275 with 20 thou over bore, Hs4 SU carb, stainless branch and free flow exhaust, standard cam, running on lead replacement fuel.
So something I'm concerned about, is when I trying to time her, I couldn't see the timing light reflection on the mark. So I'm wondering if the distributor drive gear is installed incorrectly. I did have the motor out to replace the gearbox at the start of the project, hence the gear might have shifted.
I have fitted an electronic fan on a switch for if I run her in traffic(which we have plenty here in Cape Town) but she never ever went past the halfway mark on the temp gauge during normal driving.
Has anybody got some direction for me please?
IMG_20191115_082540_708.jpg 69.89K 1 downloads
Posted 21 November 2019 - 07:06 AM
Posted 21 November 2019 - 07:40 AM
Hello Cape Town, give us a pic of the engine compartment showing the radiator and fan.
Over heating usually a dirty radiator or leaking head gasket or the fan cowling is missing. Possible too for the timing and fuel mixture being incorrect.
Posted 21 November 2019 - 01:30 PM
Posted 22 November 2019 - 07:08 AM
Posted 25 November 2019 - 09:53 AM
Smart looking motor
As said above could be a bit lean
Have a look what needle its running
The minty lamb site is a good one to compare needles...though i did prefer it before it changed
It would be worth a needle change to see if you can improve it
Have you access to a colour tune / exhaust gas analyser or a rolling road ?
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