Search found 91 matches

by Tom W
Mon Nov 12, 2018 8:10 pm
Forum: Technical
Topic: E type reaction plate
Replies: 32
Views: 845
Great Britain

Re: E type reaction plate

To Tom. Setting the TBS does not require the weight of the engine or the car. It is done using a setting link of fixed length that puts the lower wishbone at the correct angle to load the TBs when they are on the ground. Quite right. Possibly I didn’t make my point very well though. Whilst the tors...
by Tom W
Sun Nov 11, 2018 12:03 pm
Forum: General
Topic: jacking points and axle stand locations
Replies: 17
Views: 6865
Great Britain

Re: jacking points and axle stand locations

There are a few things to consider to ensure you’re jacking the car up safely. If you put axle stands underneath the hubs or the ends of the wishbones etc, then there’s a tendency for them to splay out at the top as the car is lowered onto them. That’s because of the arc the outer end of the wishbon...
by Tom W
Sun Nov 11, 2018 7:56 am
Forum: Technical
Topic: E type reaction plate
Replies: 32
Views: 845
Great Britain

Re: E type reaction plate

The reaction plate isn’t hard or time consuming to remove, but it does seem to strike fear into anyone who’s not removed it before. I think this is possibly because of the risk of injury or damage to the car from doing things wrong. Study the workshop manual, and make sure you fully understand how t...
by Tom W
Sun Nov 11, 2018 7:30 am
Forum: General
Topic: Built by Many
Replies: 59
Views: 3484
Great Britain

Re: Built by Many

I saw the car at the NEC. The bottom half is very rusty, but nothing that can’t be fixed. It’s exciting to see the project develop, I’m looking forward to the next episode.
by Tom W
Wed Oct 31, 2018 8:57 pm
Forum: Technical
Topic: Advice on engine frame please!
Replies: 16
Views: 408
Great Britain

Re: Advice on engine frame please!

Has that actually failed through the braze, or has the tube cracked at the root of the braze fillet?
by Tom W
Sat Oct 27, 2018 6:28 pm
Forum: Technical
Topic: 123 Tune Plus
Replies: 9
Views: 563
Great Britain

Re: 123 Tune Plus

I’ve not played around with the tune version, so can’t answer the question on whether you can set a curve without the engine running. If you can’t though, then you should still be able to get the car to run and set everything up accurately. First, set the distributor manually so the car will run. Us...
by Tom W
Fri Oct 26, 2018 5:22 pm
Forum: Technical
Topic: 123 Tune Plus
Replies: 9
Views: 563
Great Britain

Re: 123 Tune Plus

You get the crankshaft reference from setting the LED light initially. The 123 instruction manual will tell you where the crank should be set to set the LED. Confusingly, it’s not the same on every 123. The LED doesn’t indicate when the spark fires, it’s just a reference point. If you need more adva...
by Tom W
Sun Sep 23, 2018 9:19 am
Forum: General
Topic: Built by Many
Replies: 59
Views: 3484
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: 424
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: 2075
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: 573
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: 573
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: 588
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: 319
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: 319
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: 494
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: 1603
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: 9
Views: 563
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: 288
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: 363
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...