Search found 453 matches

by Tom W
Tue Jul 07, 2020 8:33 pm
Forum: Technical
Topic: Radiator fluid change.
Replies: 5
Views: 429
Great Britain

Re: Radiator fluid change.

I fitted a proper tap to the block on mine. It makes it easier to drain the coolant into a funnel, and cleanly into a container. Useful if I want to keep it for re use, for example if it’s being drained only to remove the rad for access. I did have to faff around with a couple of sealing washers tho...
by Tom W
Tue Jul 07, 2020 6:53 pm
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1000
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

I think that’s the same one Malcolm and I both have. It’s 24 (or more) additional crankshaft degrees beyond the idle timing, if I understand the documentation correctly. So if it were set at 10 degrees at idle, you’d have 34 degrees at the top end. The 123 GB universal distributor might be more appr...
by Tom W
Tue Jul 07, 2020 1:01 pm
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1000
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

I can’t make any specific recommendations on who to use, but as a general rule, make sure who you go to wants to do the work. You’re on a hiding to nowhere if you’re trying to work with someone who dislikes the 123, or refuses to understand how it works.
by Tom W
Tue Jul 07, 2020 11:53 am
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1000
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

The only way you’ll know for sure is to have the car on a rolling road. That way you can hear more easily when the engine is starting to pink, and measure accurately when the power stops increasing at any given rpm point when the engine is loaded up. I imagine there’s some leeway built into Jaguar’s...
by Tom W
Tue Jul 07, 2020 9:57 am
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1000
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

One of 2 things will happen if you have too much advance. Either the engine will pink, and you’ll start doing damage to the internals. Or, you’ll stop gaining power with further ignition advance, but no pinking. In this case the flame front is still propagating cleanly, but peak cylinder pressure is...
by Tom W
Tue Jul 07, 2020 4:37 am
Forum: Technical
Topic: E SI with XJ6 SIII oil filter housing-filter bypass?
Replies: 37
Views: 742
Great Britain

Re: E SI with XJ6 SIII oil filter housing-filter bypass?

If you want to move away from anecdotal trust, buy the Jaguar genuine filter. It meets a performance spec that’s appropriate to the XK engine, and it’s manufactured to a quality controlled spec, so it’s ensured that every one from the production line meets the performance spec. If you want to try an...
by Tom W
Mon Jul 06, 2020 7:53 pm
Forum: Series 2
Topic: Boot board dimensions
Replies: 8
Views: 239
Great Britain

Re: Boot board dimensions

Here’s some photos of my car. I used as much of the original timber and foam as possible. Only the board and foam over the spare wasn’t salvageable. At the leading edge, the panel over the IRS tucks under a lip that’s attached to the body. The lip is trimmed in vinyl. I kept this original as I didn’...
by Tom W
Mon Jul 06, 2020 7:21 pm
Forum: Technical
Topic: E SI with XJ6 SIII oil filter housing-filter bypass?
Replies: 37
Views: 742
Great Britain

Re: E SI with XJ6 SIII oil filter housing-filter bypass?

Have you seen this from Fram’s website? Presumably in answer to some of these videos and reviews that have been posted online. https://www.fram.com/technical-information I have no opinion of Fram one way or the other. The most important thing is the spec the filter is required to meet. The more comp...
by Tom W
Mon Jul 06, 2020 7:00 pm
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1000
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

Thanks Malcolm. So it doesn’t seem to match the instructions I found for the 123 Jag. Disappointing if it doesn’t do what it says it should, and also disappointing that none of it matches what the factory says the curve should be. With 16 to pick from, you’d hope one or 2 suited the E-type. It’s ver...
by Tom W
Mon Jul 06, 2020 9:40 am
Forum: Series 2
Topic: Boot board dimensions
Replies: 8
Views: 239
Great Britain

Re: Boot board dimensions

I restored my boot boards a couple of years ago. I’ll take some photos later of how it goes together. The screws aren’t visible when everything is assembled.
by Tom W
Wed Jul 01, 2020 8:18 pm
Forum: Technical
Topic: Does My Coil Look Big In This ?
Replies: 9
Views: 458
Great Britain

Re: Does My Coil Look Big In This ?

Thanks, looks like a well though out solution.
by Tom W
Wed Jul 01, 2020 4:22 pm
Forum: Technical
Topic: Does My Coil Look Big In This ?
Replies: 9
Views: 458
Great Britain

Re: Does My Coil Look Big In This ?

Hi Rory,

How did you mount the trigger wheel on the back face of the crank pulley? That looks very neat.
by Tom W
Wed Jul 01, 2020 4:18 pm
Forum: Technical
Topic: pre-programmed curves on 123 ignition - help please?
Replies: 53
Views: 1000
Great Britain

Re: pre-programmed curves on 123 ignition - help please?

It’s a bit disappointing that none of them match the factory curve. More worrying, if it doesn’t do what it says it’s supposed to do. I wonder if they all show the same variance to the instructions, or whether it’s different from one 123 to the next.
by Tom W
Wed Jul 01, 2020 4:07 pm
Forum: Technical
Topic: E SI with XJ6 SIII oil filter housing-filter bypass?
Replies: 37
Views: 742
Great Britain

Re: E SI with XJ6 SIII oil filter housing-filter bypass?

I’ve just looked on a genuine XJ6 filter I have in my stock. No maker’s name, but it does say made in Italy.
by Tom W
Wed Jul 01, 2020 3:40 pm
Forum: Technical
Topic: E SI with XJ6 SIII oil filter housing-filter bypass?
Replies: 37
Views: 742
Great Britain

Re: E SI with XJ6 SIII oil filter housing-filter bypass?

I don’t know who makes the genuine Jaguar filter, but it will be made to a controlled specification and meet a set of performance requirements that are appropriate to the engine.

It may well be possible to buy a superior filter, but the Jaguar one will be good enough.
by Tom W
Wed Jul 01, 2020 2:30 pm
Forum: Technical
Topic: E SI with XJ6 SIII oil filter housing-filter bypass?
Replies: 37
Views: 742
Great Britain

Re: E SI with XJ6 SIII oil filter housing-filter bypass?

If you have a genuine XJ6 filter head, there’s 2 bypasses in the system, and the pressure relief valve. One bypass is internal to the filter element, assuming you use a genuine Jaguar filter. This protects the engine if the filter is clogged, and limits the pressure drop across the filter. The 2nd b...
by Tom W
Mon Jun 29, 2020 5:17 pm
Forum: Series 2
Topic: what to do
Replies: 3
Views: 184
Great Britain

Re: what to do

Tricky. The car will drive a lot better as a manual. The original auto will be dim witted compared to a modern auto, whereas the all synchro manual stands up well. Being a 2+2, you could convert to a manual overdrive. However, to convert, there’s lots of extra parts to source. Whereas restoring what...
by Tom W
Sun Jun 28, 2020 6:31 pm
Forum: Technical
Topic: Cooling fan removal
Replies: 6
Views: 236
Great Britain

Re: Cooling fan removal

They will come out without removing the rad. It’s a while since I did it, but I think it was with the top hose disconnected, and the radiator tie brackets removed so the radiator can be tipped forward.
by Tom W
Sun Jun 28, 2020 4:23 pm
Forum: Series 2
Topic: oscillating idle and lack of power
Replies: 7
Views: 313
Great Britain

Re: oscillating idle and lack of power

Hi Peter, the tool you’re referring to is a set of feeler gauges. Your ignition map looks like you don’t have any vacuum advance programmed in yet. That shouldn’t be the cause of your problem though. Somethings not quite right if you need to set the floats differently to get the same fuel level. It ...
by Tom W
Sun Jun 28, 2020 10:07 am
Forum: Pub Chat
Topic: Eagle Lightweight GT
Replies: 23
Views: 651
Great Britain

Re: Eagle Lightweight GT

I wonder how much of these limited edition Eagle cars came out of the Jaguar factory originally, or are even new manufactured parts to Jaguar specs? None of the major components, by the sound of how they’re all upgraded. I generally like the look of it, but the low angle photos they insist on using ...