The 'E' Type Forum

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PAZ wrote: ↑

Mon Feb 17, 2025 11:49 am

I have taken the thermostats out,

Not a good thing to do!

This way the bypass circuit is not closed off! This means that a significant portion of coolant never passes through the radiator.

Also, do you have the correct format (not temp rating) thermostats fitted?

Doing some cooling related work on my XJS recently, I filled the cooling system to the brim and connected a transparent soft drink bottle to the overflow pipe. The idea was to find out by how much the coolant expands due to warming up from about 20°C to 86°C. Answer: about 400cc (0.4L) The E-type al...

So… It turned out it WAS the lack of vacuum to the modulator that caused all the above. But there were two causes: 1. The vacuum line that T off from manifold vacuum which feeds the modulator and also goes directly to the distributor vacuum advance diaphragm, was actually plugged into the vacuum fee...

My S3 with the BW auto is acting up. When I drove the car into the garage with the previous trip, all was fine. Upon commencing the drive on Saturday, the transmission was acting up. “Broke” in the garage… Symptoms are as follows: 1. Goes into D or R very harshly at idle; 2. When going into D, it ac...

When the flap is vertical it blocks all air into the matrix, result is that all air from the fan is dumped into the engine bay and no air can flow into the cabin. Why would an owner want to have this "feature", which, in my words, will suck air in via the bonnet duct, through the fan, then dump it ...

installing a 4.2 into an existing V12 car? I'm really interested in hearing the motivation for doing so. WHY??? A V12 has only two main issues that need attention: Ignition; Cooling Both sorted very easily, and rather inexpensively, with definitely far less effort than would be required to fit an X...

I've never quite understood the purpose of the flap being controlled by the L shaped lever with the spring... It seems to give the occupants of the car the choice of drawing air via the bonnet duct or ... drawing air from the engine compartment. I can understand the benefit of drawing air from the n...

Big T-Rev wrote: ↑

Mon Feb 19, 2024 3:11 am

Without cutting the body the 4L60 is not a viable alternative.

I suspected as much, thanks.

But.... It sure would transform the car hugely.

i would remove air filters and rev it up while watching to make sure that the slides are all lifting and topping out on full throttle I don't think one should expect full lift of those air valves without the engine being under significant load and at high revs. Never tried it myself though, so I do...

Does the Pertronix 9LU-1122A Ignitor II work with the Reopus Amplifier or is it removed and the module does all the work? The Petronix is an all-in-one unit with pickup and ignition amp elegantly all inside the dissy. Only wires needed is Ground, 12V and Coil-. Only other item needed is the coil. O...

Ignition system is a ReOpus unit, believed to be good. You can not assume the ReOpus to be good. My own 2+2 was fitted with ReOpus when the car still belonged to my friend. The car had a persistent misfire. Which could not be cured with timing setting, carbs setting and clean plugs. He has a electr...

Found this Hex head Bolt among my spares: 1/4" x 6" UNC

Where might this be used?

if I set the AFR to give a good AFR on the road (13.5:1), then it is massively rich (10:1 and black smoke) at idle. I don't know what exactly "on the road" means but 12.5-13.5 is what you should have at full throttle conditions and off-idle. For steady cruise, level road situations you should have ...

2SO DE-COKES a non-cat, non O2-sensored engine.... among many other advantages. I'll elaborate: Using two-stroke oil (2SO) as an additive (approx 200:1) on a non-cat, non-o2-sensored petrol and diesel engines does many good things, the main ones being: softening and eventual removal of the carbon d...

bitsobrits wrote: ↑

Thu Nov 02, 2023 11:58 am

Coking up an engine by burning a 2SO mix could certainly raise compression, but why would you want to do that?

2SO DE-COKES a non-cat, non O2-sensored engine.... among many other advantages.

Redman wrote: ↑

Fri Oct 13, 2023 2:28 pm

took the advice of others on this forum and added some good quality 2 Stroke oil to the tank.

Interesting!! I'm a big fan of 2SO in old engines as well! Pity you did not measure compression before and after adding 2SO. That might have been interesting too!

This Chin Scoop is an often damaged and incorrectly repaired component, see the following picture https://i.postimg.cc/nrYYJbFQ/Incorrect-Chin-Scoop1.jpg At the two corners where the horizontal surface transitions into vertical, there should be radii of circa 50mm, Damage to the chin scoop (and hen...

both mechanical and vacuum advance. 1. Vacuum ADVANCE? Are you sure? 2. What ignition system does it have? 3. Are the carbs balanced? (Using a proper air flow measuring device? Balancing by ear is, IMO, NOT balanced) If not balanced properly, you could have it idle at the desired idle speed with on...