The 'E' Type Forum

Hello Phil. The performance curves I posted are not my cars, not even real, they are copied from automobile-catalog, this uses car dynamics simulation software i.e https://www.automobile-catalog.com/simulation.php

Hello Peter. Can you tell us what the “competition upgrade” comprises, specifically what is different to the OD that was fitted to Jaguar 4.2L XJ6’s? Do you know spring rates and materials?

For the o/drive option, I am in the process of this, reco’d Laycock de Normanville Compact type A unit is sitting on the bench waiting for me to get a round tuit. The same as was fitted to XJ6 S1 and S2 cars. You will find in the S3 forum that UK companies advertising expertise are of ODSpares in Ru...

Setting tool? JD43? Golly gosh… Curiously my otherwise reliable workshop manual specifies a 49.69 cm (19.563 inch) shock bolt setting, this was too much. What I ultimately adopted was 487 mm, i.e near as dammit yr 19.25 inches but without any preload. I was then able to adjust to specified ground cl...

You need to feed the bar into the spline BEFORE you set the shock absorber spacing. Once the bar is in the spline it moves with the arm, can never contact. Here is a pic of my supper sophisticated shock absorber spacing tool, with notches as required to clear stuff. The 3 holes at the bottom end is ...

Wow - isn't that "Jaguar E-type Roadster 4.7" in their Gallery the most beautiful thing?
They make alloy wire wheels, maybe in larger diameters? I've sent the email ...

The Otter Switch is in the bottom hose from the radiator to the water pump. https://i.postimg.cc/6QNMTDfN/20190113-121833.jpg In this location it senses the temperature of the water from the radiator, if it is too hot it turns on the fan. Per Manfred, if this switch has failed the PO (previous owner...

I guess its the weight, bigger steel rims too heavy?

Yep, very nice JC. Looks short for an S3, must be the background. And tubeless on wire wheels is clever tech. I wonder why wire wheels with larger diameters are not commonly available (instead of special order)? Imo a worthwhile upgrade. I have seen some with 16 inch wheels off older XK’s, but these...

Phil I reckon yr tacho’s fine, 3300 rpm, multiplied by the ratio of the diff ratios, equals 2836 rpm? My diff is 3.54. 3500 rpm at 120 kph. When I finally get around to fitting my 0.78 LdN overdrive it should be down to 2730 rpm. Won’t help the problem of having to snatch 2nd gear before the other s...

WHAT??? You didn’t immediately rush out and pull yr heater apart till midnight? BH… To test the cable to the water shut-off/reg valve (per JC): As explained. Operating the right control (Air hot-cold) needs to operate the valve full stroke. To test the valve (per Ole, Steve): Need only drain a coupl...

6.4 mm = 1/4 inch, by vernier.

The water thru the heater is in a parallel path to the water thru the thermostats. The pressure differential across the thermostats is what pushes water thru the heater. If you take out yr thermostats it messes up the balance, frees up the flow through the thermostat housings so more of the water ta...

C34691 is a regulating/shut-off valve, not a bypass valve. Ref the pic. The RH pipe takes water from the engine. The LH pipe delivers water to the heater matrix. When the control lever (with phillips-head cable clamp screw) is all the way to the left (front of the car) the valve is completely closed...

In my case it was not having thermostats, and with alum radiator engine was not getting hot enough. Fitting thermostats fixed this,. What temperature does yr engine run at? Needs to be well into "normal" before heater works like it should, this with reco'd heater incl new matrix...

Yep, I drilled my own. Here is how it ended up: The benchmark, what u r trying to achieve, is documented on page 31 of this Jaguar publication: https://1drv.ms/b/s!AiSPBKa26IcchJgz_vFYjJKROLFR9g This was written for HE engines however is equally applicable to our lower comp engines (the only variati...

Mine the rubber seal is between the canister plate and the canister. No washer under the bolt head. The washer is between the spring and the felt.

As a lad I played around with sway bars. Not on E's. I found that to avoid nasty suprises i shoud test settings when the road was wet. In particular, a too stiff rear bar could cause sudden loss of traction and chaotic oversteer. Cheaper solution was to run tyres at max pressure ...

Mine are 905 mm, both sides.