Search found 517 matches

by jagwit
Sat Dec 21, 2019 11:24 am
Forum: Series 3
Topic: V12 ECU
Replies: 70
Views: 10515
South Africa

Re: V12 ECU

It is indeed the simplest EFI implementation. Now your car will also have an efi wiring diagram which other efi cars are not likely to have.

Being std Jag, should not haunt you IF you sell the car (now how would I know that...)
by jagwit
Sat Dec 21, 2019 10:47 am
Forum: Series 3
Topic: V12 ECU
Replies: 70
Views: 10515
South Africa

Re: V12 ECU

MLBS3V12 wrote:
Sat Dec 21, 2019 9:04 am
Hi all,
I've finally decided to place the EFI ECU on the passenger side in the car:

Image
Exactly where I put mine.
by jagwit
Sun Dec 08, 2019 2:41 pm
Forum: Series 3
Topic: Series 3 2+2 1972 - Ignition Issues
Replies: 15
Views: 2425
South Africa

Re: Series 3 2+2 1972 - Ignition Issues

I did Chris, but without stripping a carb known to be correct, or having a carb I can study in detail, I can not confidently make recommendations. Sorry mate. I would want to know where the fuel is coming from when enrichment is called for, and where it is going. Obviously, the disk must be position...
by jagwit
Sun Dec 08, 2019 1:23 pm
Forum: Series 3
Topic: Series 3 2+2 1972 - Ignition Issues
Replies: 15
Views: 2425
South Africa

Re: Series 3 2+2 1972 - Ignition Issues

I only tested the "A" bank. The results were: 1A: 800; 2A:1000; 3A:890; 4A:853; 5A:1055; 6A:861 and the coil to dissie lead: 643 All varied a bit when I bent them a bit to check for obvious poor continuity. Nothing wrong there. Those kinds of variation is nothing alarming. I do NOT recommend copper...
by jagwit
Fri Dec 06, 2019 3:12 pm
Forum: Series 3
Topic: Series 3 2+2 1972 - Ignition Issues
Replies: 15
Views: 2425
South Africa

Re: Series 3 2+2 1972 - Ignition Issues

13. Needless to say the engine would not start with chokes almost fully on If I apply too much choke on my car, I get no sign of life. In fact, I've come to regard the "choke" as extremely "aggressive". Most of the time, pulling choke to the first detent, is more than enough, still requiring pushin...
by jagwit
Fri Dec 06, 2019 3:04 pm
Forum: Series 3
Topic: Series 3 2+2 1972 - Ignition Issues
Replies: 15
Views: 2425
South Africa

Re: Series 3 2+2 1972 - Ignition Issues

Having rebuilt the 4 carbs, Chris, I'm with Colin on this one. I too place more suspicion on the carbs than I do on the ignition system. If there is one thing I learnt in my automotive adventures, it is how quickly a plug fouls when being overfuelled. You are stating that you rebuilt the carbs. Tha...
by jagwit
Thu Nov 21, 2019 6:26 pm
Forum: Series 3
Topic: Engine Cooling System Flush.
Replies: 8
Views: 1692
South Africa

Re: Engine Cooling System Flush.

The best flushing agent is citirc acid I believe my car is suffering from scale by virtue of pushing out coolant 2 min after being switched off with temp gauge anywhere between M and L of normal and I've been wanting to either pull the heads or apply chemical treatment, so I'm all ears.... What wou...
by jagwit
Tue Nov 12, 2019 7:30 am
Forum: Series 3
Topic: Acrid smoke and low vacuum
Replies: 29
Views: 5647
South Africa

Re: Acrid smoke and low vacuum

Look how those crank sprocket teeth are worn...

New:
sprocket
Tensioner
Cam sprockets
Chain

Might be cheaper to buy a parts engine
by jagwit
Mon Nov 11, 2019 1:49 pm
Forum: Series 3
Topic: Acrid smoke and low vacuum
Replies: 29
Views: 5647
South Africa

Re: Acrid smoke and low vacuum

lowact wrote:
Sun Nov 10, 2019 1:00 pm

Image
Those cylinder tops also look very black - as if the engine was running very rich (as suggested by thread title), or it was burning a lot of oil, or both.
by jagwit
Sun Nov 10, 2019 6:52 pm
Forum: Series 3
Topic: Acrid smoke and low vacuum
Replies: 29
Views: 5647
South Africa

Re: Acrid smoke and low vacuum

Timing chain tensioner good?
by jagwit
Fri Nov 08, 2019 5:44 pm
Forum: Series 3
Topic: S3 OTS Brakes
Replies: 12
Views: 1871
South Africa

Re: S3 OTS Brakes

On my ex-OTS the symptoms were as follows: 1) Problems only started after a continuous drive of 30 min or more; 2) Free play on brake pedal would gradually diminish as the drive went on; 3) A delay arose between releasing the brake pedal and actual brake release; 4) Then one could feel the brakes (n...
by jagwit
Wed Nov 06, 2019 7:02 pm
Forum: Series 3
Topic: S3 OTS Brakes
Replies: 12
Views: 1871
South Africa

Re: S3 OTS Brakes

So you think that the problem lies in the master cylinder? Could you enlarge on that for me? Yep. I have found the quality of aftermarket parts to be most disappointing. The master cyl on the E is actually a rather complicated bit of kit. I believe the quality of manufacture of the new "equivalents...
by jagwit
Wed Nov 06, 2019 5:17 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7558
South Africa

Re: 130A alternator upgrade

So that looks like a good range to you? Yep, that will do. If your header tank is after market, please don't disregard the possibility of that secondary bypass coolant route from header tank to top right of radiator. I worked on a 68 recently with this exact problem. I sorted it by installing some ...
by jagwit
Wed Nov 06, 2019 4:36 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7558
South Africa

Re: 130A alternator upgrade

No accessories on was 13.6x at battery is 13.7x with cable So you lost 0.1V simply by charging battery. Drops to 13.6x (was 13.3) with hdlts/hrt fan/radio, Aha! Up from 13.3! This is acceptable in my book. add the radiator fan which is a big GM fan motor drops to 13.5x after a drop to 12.6 and quic...
by jagwit
Wed Nov 06, 2019 3:40 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7558
South Africa

Re: 130A alternator upgrade

The wiring on the early English cars were done before Ohms law was invented = prehistoric. Running an unfused wire from B+ on the alternator into the dash (as per factory) is downright recklessly dangerous!! I recommend you run at least 4 gauge (Preferrably thicker) from the B+ output of the Alterna...
by jagwit
Wed Nov 06, 2019 2:51 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7558
South Africa

Re: 130A alternator upgrade

With no accessories on I get 13.65 at the battery, ..., drops to 13.3 with hdlts/hrt fan/radio, add the radiator fan ... and I'm down to 12.6 at 1500rpm and 12.9 at the battery 2000rpm and up... Same total load I get 13.4v at the alternator. 13.65 with 0 load is now a bit too low again. Should be a...
by jagwit
Mon Nov 04, 2019 5:39 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7558
South Africa

Re: 130A alternator upgrade

Something is not right. At 14.9v battery won't last long.

In my book 14.2 is about as high as it should be.
by jagwit
Mon Nov 04, 2019 4:38 pm
Forum: Series 3
Topic: 130A alternator upgrade
Replies: 44
Views: 7558
South Africa

Re: 130A alternator upgrade

14.9 is too high. Not good for battery.

Does your alternator have a sense input? If so, connect a wire from battery + to that terminal.
by jagwit
Mon Nov 04, 2019 11:57 am
Forum: Series 3
Topic: S3 OTS Brakes
Replies: 12
Views: 1871
South Africa

Re: S3 OTS Brakes

Paul Buckley wrote:
Sun Nov 03, 2019 11:28 pm
new master cylinder
There it is. Refit the old one and report back.
by jagwit
Sun Nov 03, 2019 2:14 pm
Forum: Series 3
Topic: From 4 to 5 Speed , but Which one ?
Replies: 34
Views: 8625
South Africa

Re: From 4 to 5 Speed , but Which one ?

I have a 2.88 in my S3 v12 (auto). 3rd on the auto is same ratio as 4th manual. It is by far the quickest, easiest and cheapest solution for a v12. I still long for an overdrive of sorts. IF the auto should fail while I still have the means to do something about it, I will try VERY HARD to get a GM ...