Search found 84 matches

by Tom W
Sun Sep 23, 2018 9:19 am
Forum: General
Topic: Built by Many
Replies: 35
Views: 1620
Great Britain

Re: Built by Many

I enjoyed the first show. It seems to have a good level of technical detail. Plus, there’s non of the childish presenting, or false jeopardy regarding deadlines or turning a profit, that so often seems to afflict car restoration programmes.
by Tom W
Sun Sep 23, 2018 7:24 am
Forum: Series 2
Topic: Altenator
Replies: 6
Views: 261
Great Britain

Re: Altenator

I don’t know if it makes a difference electrically which way the alternator is rotating, but you’ll need to make sure the pulley fan blades are the correct orientation for the direction of rotation, otherwise it won’t cool properly.
by Tom W
Tue Sep 18, 2018 7:11 pm
Forum: Technical
Topic: Ported vacuum advance vs manifold vacuum advance
Replies: 47
Views: 1346
Great Britain

Re: Ported vacuum advance vs manifold vacuum advance

There are few things to check to match the setup appropriate to a triple SU engine. Firstly, vacuum advance. Not all federal distributors had vacuum advance capability. Easy to check if your distributor has the vacuum module on the side, it’s visible from outside the distributor. Secondly, there’s t...
by Tom W
Mon Sep 17, 2018 6:33 pm
Forum: Technical
Topic: Series one Independent rear suspension (IRS) overhaul?
Replies: 13
Views: 354
Great Britain

Re: Series one Independent rear suspension (IRS) overhaul?

I remember reading somewhere that the crown wheel and pinion from a 2.88 won’t fit in the housing for a 3.54. I swapped the whole diff over on mine, for a 2nd hand 2.88, which I suspect came from an XJS. I cleaned and painted the outside of the new diff, and removed the rear cover to inspect the ins...
by Tom W
Sun Sep 16, 2018 8:07 pm
Forum: Technical
Topic: Series one Independent rear suspension (IRS) overhaul?
Replies: 13
Views: 354
Great Britain

Re: Series one Independent rear suspension (IRS) overhaul?

I’ve just finished doing mine, pretty much everything that moves/wears ended up being replaced in the end. I think you’ve covered most things on your list. I bought my bearings direct from a bearing supplier, rather than the usual Jag suppliers. That way I could ensure I got Timken. I was able to re...
by Tom W
Tue Sep 11, 2018 7:22 pm
Forum: Technical
Topic: Jaguar XK-6 DOHC port/cylinder head analysis
Replies: 15
Views: 341
Great Britain

Re: Jaguar XK-6 DOHC port/cylinder head analysis

This is fascinating. I always wonder what the improvements would be, if any, to have the combustion chambers aligned with the bores on the 4.2. What are the detrimental affects off the offset bores? Presumably the squish, mixture swirl and combustion characteristics are different from cylinder to cy...
by Tom W
Mon Sep 10, 2018 3:44 pm
Forum: Technical
Topic: Fan belt setup
Replies: 5
Views: 209
Great Britain

Re: Fan belt setup

Not my photo, but this shows some of the belt setup. Looks like the AC pump has a jockey wheel and the alternator is tensioned by rotating it on its mounts.

http://classicjaguar.com/cj/5ANDY2.jpg
by Tom W
Mon Sep 10, 2018 3:12 pm
Forum: Technical
Topic: Fan belt setup
Replies: 5
Views: 209
Great Britain

Re: Fan belt setup

I have a 1970 S2 with PAS and it used to have AC. The belts should be arranged as follows: The water pump is driven from the crank pulley groove nearest the block, and goes round groove in the water pump pulley nearest the block. It is tensioned by the spring loaded jockey wheel. The PAS pump is dri...
by Tom W
Sun Sep 09, 2018 8:32 pm
Forum: Series 2
Topic: Difference btw US and European spec’s
Replies: 5
Views: 322
Great Britain

Re: Difference btw US and European spec’s

I think the fuel tank breather arrangement and is different on emission spec cars. My S2 has extra marker lights front and rear. The front side lights were originally orange too.
by Tom W
Thu Sep 06, 2018 5:13 am
Forum: Technical
Topic: Serious brake bleed issues
Replies: 43
Views: 1063
Great Britain

Re: Serious brake bleed issues

Very good, looks like it could be the cause. Make sure you buy the correct strength of bolt when you source your replacements, as well as size.
by Tom W
Wed Sep 05, 2018 9:48 pm
Forum: Technical
Topic: 123 Tune Plus
Replies: 3
Views: 202
Great Britain

Re: 123 Tune Plus

Surely, the test you describe with the meter is looking for a voltage from the car wiring, not the 123, unless I have misunderstand what you mean? If you don’t have 12v that would point to faulty ignition wiring.
by Tom W
Tue Sep 04, 2018 9:55 pm
Forum: Series 1
Topic: Very early handbrake / parking brake calipers
Replies: 3
Views: 196
Great Britain

Re: Very early handbrake / parking brake calipers

There’s a section in the workshop manual on the early manually adjusted calipers.
by Tom W
Tue Sep 04, 2018 9:59 am
Forum: Technical
Topic: Squeaking Rear End Problem Finally Solved
Replies: 6
Views: 275
Great Britain

Re: Squeaking Rear End Problem Finally Solved

It’s possibly not very clear from my photos, but there isn’t room for the retainer to move around inside the spring. There’s enough clearance between the outside face of the retainer and the inner diameter of the spring for it to be assembled without interference, but certainly not 10-12mm of moveme...
by Tom W
Mon Sep 03, 2018 8:09 am
Forum: Technical
Topic: Serious brake bleed issues
Replies: 43
Views: 1063
Great Britain

Re: Serious brake bleed issues

Do you get a decent pedal after bleeding, then get a soft pedal when the car is driven? If so, this may not even be a brake bleeding problem. Now you’ve isolated the problem to the front circuit, I would look at the front wheel bearings and stub axles. Any excessive play or flex here can cause the d...
by Tom W
Sun Sep 02, 2018 6:06 am
Forum: Technical
Topic: Fitting radius arms - an easy trick
Replies: 2
Views: 191
Great Britain

Fitting radius arms - an easy trick

I refitted the irs to my car yesterday, and thought you might be interested in my method for lining up the forward radius arm bushes. I was working single handed lay in a single garage. The problem is, with the suspension at full droop, the radius arm is too short to reach over the post on the car. ...
by Tom W
Sun Sep 02, 2018 5:51 am
Forum: Technical
Topic: Squeaking Rear End Problem Finally Solved
Replies: 6
Views: 275
Great Britain

Re: Squeaking Rear End Problem Finally Solved

Here’s the bottom of one of my springs. It’s not possible to move anything laterally, and there’s too much preload to move anything even if there were clearance. I wonder if you have some springs from a saloon fitted? I believe they might be a larger outer diameter. https://s22.postimg.cc/6d3be0hht/...
by Tom W
Fri Aug 31, 2018 9:04 pm
Forum: Technical
Topic: Knock on rear end (sounds painfull)
Replies: 36
Views: 921
Great Britain

Re: Knock on rear end (sounds painfull)

On the later cars where this bolt faces the other way and screws directly into the wishbone, there’s a lock tab that folds over the bolt head to stop it coming loose.
by Tom W
Mon Aug 27, 2018 6:20 pm
Forum: Technical
Topic: Radius arm bush orientation
Replies: 6
Views: 277
Great Britain

Re: Radius arm bush orientation

I went for the slots fore and aft in the end. I’ll see how things are supposed to drive as Jaguar intended first. Anyway, the new OEM bushes look a lot stiffer than the pattern parts that they’re replacing, the cutouts are a lot smaller. They’re also a lot tighter fit in the radius arms. I was able ...
by Tom W
Mon Aug 27, 2018 7:07 am
Forum: Technical
Topic: Serious brake bleed issues
Replies: 43
Views: 1063
Great Britain

Re: Serious brake bleed issues

Have you tried pushing all the pistons back into the cylinders before bleeding?
by Tom W
Sun Aug 26, 2018 2:27 pm
Forum: Technical
Topic: Serious brake bleed issues
Replies: 43
Views: 1063
Great Britain

Re: Serious brake bleed issues

I would also try pushing all the pistons all the way back into the calipers before trying the next bleed.