Search found 516 matches

by jagwit
Tue Nov 22, 2016 10:49 am
Forum: Technical
Topic: Battery / Volt Gauge discrepancy
Replies: 17
Views: 4097
South Africa

Re: Lying "Battery" Gauge/ Volt meter

Good suggestions Marek!

It should be interesting to see if the constant 10V supply brings about any different behaviour on the Temp and Fuel gauges.
by jagwit
Tue Nov 22, 2016 10:08 am
Forum: Technical
Topic: Battery / Volt Gauge discrepancy
Replies: 17
Views: 4097
South Africa

Re: Lying "Battery" Gauge/ Volt meter

Further observations: 1) The volt gauge actually draws 120mA (0.12 Amp); 2) The oil pressure gauge draws a constant 105mA (0.105 Amp, engine running, gauge almost at max); 3) The coolant temperature gauge toggles* between 100mA and 0 mA (engine hot, needle on M of NORMAL) 4) The fuel gauge toggles* ...
by jagwit
Mon Nov 21, 2016 2:25 pm
Forum: Technical
Topic: Battery / Volt Gauge discrepancy
Replies: 17
Views: 4097
South Africa

Re: Lying "Battery" Gauge/ Volt meter

Wouldn't you have to have the ignition switched on for those 3 days? That point I had in mind has permanent 12V even with ignition off. Have you tried another voltmeter? No, but I'm willing to bet my life on the accuracy of this DMM. If you want to deliver 14v to the battery, or any other point, no...
by jagwit
Mon Nov 21, 2016 9:28 am
Forum: Series 3
Topic: Automatic to manual gearbox conversion
Replies: 13
Views: 5508
South Africa

Re: Automatic to manual gearbox conversion

Marek

Is this the std E-type 4sp box that is converted to a 5sp?
Who does this upgrade?
What is the 5th ratio?
by jagwit
Mon Nov 21, 2016 9:08 am
Forum: Series 3
Topic: Automatic to manual gearbox conversion
Replies: 13
Views: 5508
South Africa

Re: Automatic to manual gearbox conversion

The Jag MOD box is a drop in replacement for the manual gearbox on any long wheel base car.
Link please?
by jagwit
Mon Nov 21, 2016 9:05 am
Forum: Series 3
Topic: 3sp auto to 4sp auto conversion?
Replies: 0
Views: 3252
South Africa

3sp auto to 4sp auto conversion?

I have converted my one Jensen Interceptor's Chrysler A727 transmission to a GM 4L60e transmission. The main differences are: 1) The 4L60e now offers a 0.7 overdrive. This brings cruising rpms at 120km/h down from 3100rpm to 2100rpm (with the 3.07 diff), as well as massive improvement in open road f...
by jagwit
Mon Nov 21, 2016 8:52 am
Forum: Series 3
Topic: Automatic to manual gearbox conversion
Replies: 13
Views: 5508
South Africa

Re: Automatic to manual gearbox conversion

Avoid "The Driven Man's" Solution. I had paid him already and only then found out that his product is basically a rebuilt used box (NOT NEW!!!), and that the propshaft WOULD require modification despite his claims - at the time - that no mods would be required. I did not want to modify any parts tha...
by jagwit
Mon Nov 21, 2016 7:27 am
Forum: Technical
Topic: Battery / Volt Gauge discrepancy
Replies: 17
Views: 4097
South Africa

Re: Lying "Battery" Gauge/ Volt meter

but am struggling a bit with your logic Philip You're right Peter, logic was somewhat absent from this exercise. I was a bit disappointed in myself having stormed into the alternator upgrade so unquestioningly. It was rather un-Engineer like. I do have a BSc Electronic Engineering degree, but that ...
by jagwit
Sun Nov 20, 2016 6:36 pm
Forum: Technical
Topic: Battery / Volt Gauge discrepancy
Replies: 17
Views: 4097
South Africa

Re: Lying "Battery Condition" / Volt meter

Having opened the Battery Condition gauge, and cleaned the lens, I now have to do the same for the remaining instruments.... :roll: https://dl.dropboxusercontent.com/u/152361554/Jaguar/E-type/Instruments/20161120_152557.jpg BTW: The position of the needle is where it sits after a cold start and havi...
by jagwit
Sun Nov 20, 2016 6:25 pm
Forum: Series 3
Topic: Radiator fan relay: where is it located?
Replies: 2
Views: 1082
South Africa

Re: Radiator fan relay: where is it located?

:thankyouyellow:

I was considering upgrading the 12V supply to the fan relay but I've now concluded that the standard wiring (in this instance) can hardly be improved upon.
by jagwit
Sun Nov 20, 2016 6:22 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7355
South Africa

Re: 130A alternator upgrade

:banghead: I may still replace the original Butec.... The motivation to do this alternator upgrade was based on the "Battery Condition" Gauge frequently reporting deep conditions of "Off Charge" when the Aircon and headlights were on and while idling. Well, I have found the Battery Condition gauge t...
by jagwit
Sun Nov 20, 2016 6:10 pm
Forum: Technical
Topic: Battery / Volt Gauge discrepancy
Replies: 17
Views: 4097
South Africa

Battery / Volt Gauge discrepancy

Having just fitted a modern 130A to my Series 3 V12 ( http://forum.etypeuk.com/viewtopic.php?f=6&t=9767 ), I was rather disappointed to find that the Battery guage/ Volt meter still went well below the "13V" indication, deep into the "Off Charge" zone. I also could not understand why the Volt gauge ...
by jagwit
Sat Nov 19, 2016 9:36 am
Forum: Series 3
Topic: Radiator fan relay: where is it located?
Replies: 2
Views: 1082
South Africa

Radiator fan relay: where is it located?

I have not searched for it yet, perhaps someone knows where it is?
by jagwit
Sat Nov 19, 2016 8:20 am
Forum: Technical
Topic: EFI vs transmission upgrade
Replies: 0
Views: 3351
South Africa

EFI vs transmission upgrade

These old cars of ours are, with the benefit of 45 years of technological progress, rather compromised in terms of efficiency. The lack of vacuum timing advance on a standard V12 E-type is a good example. Take my '74 Mk3 Jensen Interceptor as another example: 440 Cubic inches (7.2L) of engine but at...
by jagwit
Fri Nov 18, 2016 4:12 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7355
South Africa

Re: 130A alternator upgrade

You can then work out the ideal circumference of the pulley A bit academic perhaps? The pulley on the the alternator is already as small as what 10mm V-belts allow. So, the only option is increasing the crank pulley (or water pump pulley) size. Neither of which appeals to me now. Besides, it seems ...
by jagwit
Fri Nov 18, 2016 12:02 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7355
South Africa

Re: 130A alternator upgrade

Today must have been somewhere between 35ºC and 38ºC and I took her for a drive... Temp gauge was sitting on the M of NORMAL most of the time, Aircon on, Battery gauge dead centre (it was sitting on the N of ON CHARGE as I left home). When I got to about 1km from home I switched the headlights on as...
by jagwit
Thu Nov 17, 2016 8:28 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7355
South Africa

Re: 130A alternator upgrade

Consider running the front lights directly from the alternator via a pair of relays This is exactly what I did on my EFI'ed Jensen. Ditto the radiator fans. Doing so would bring great relief on that spade terminal on the alternator. EDIT: On 2nd thought, might be a bit more challenging to accomplis...
by jagwit
Thu Nov 17, 2016 7:52 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7355
South Africa

Re: 130A alternator upgrade

130A? What are you planning to do with all those Amps, spotweld? If I have to... Like I said in my first post. I chose this alternator for its form factor, not its amps. It was lying in my garage doing nothing, so it cost me nothing to implement. The car will only use what it needs, nothing more.
by jagwit
Thu Nov 17, 2016 6:45 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7355
South Africa

130A alternator upgrade

The car does NOT need 130A!!! ___________ :yeahthat: Even with Aircon and EFI (this car does not have EFI), the car does NOT need 130Amps . THE MAIN AIM OF THIS REPORT IS TO SHARE ABOUT THE EASE OF IMPLEMENTING THIS UPGRADE AND POSSIBLY, HOW CHEAPLY IT CAN BE DONE I had this alternator lying around...
by jagwit
Wed Nov 16, 2016 6:18 pm
Forum: Series 3
Topic: S3 V12 Frount mount Alternator upgrade.
Replies: 7
Views: 2895
South Africa

Re: S3 V12 Frount mount Alternator upgrade.

Importing one of these off-the-shelf kits is not an option for me as by the time I have it in my hands, the price has doubled.

It turns out I have 7 alternators lying around in my cupboards. I will MAKE one of these work and will post on my project once I have something worth sharing.