fjmuurling

Now you have healthy voltages at the back of the car it is time to check voltage on the front and compare them to the voltage on the back. (Also test under load ie lights on). There can be bad connections between the front and the back of the car. (earth straps is one possibility). Compare the readings with what the dash gauge shows. (maybe your dash gauge is OK).

I guess this thread should be split, it started as a radio thread and now we are in the coolant business.

The overflowtank/expansion tank in the left rear is ONLY for the Engine coolant circuit.

The wooden beam was placed under a chassis cross tube, the axle stands are straight under chassis strongpoints, ie there were all the tubues come together on the left and right side. The wooden beam is not touching any fiberglass Jacking up on the rear, one picture says more than.............................

That is correct

Found this one for sale: Lotus Esprit Turbo SE Highwing | 02-1992 | 63.937 km (micexclusive.nl) In my neighbourhood. (about 25 km)

This applies also to the SE, AFAIK all Esprits with a GM P4 ECU have this "feature".

www.tune-it.com.au/tp_download.htm

An older laptop with a decent small microphone and www.tune-it.com.au/tp_download.htm

This is not correct. Spec is between 100 - 110 Hz Engine at 30° BTDC with the colourd timing dots pointed to each other, they will not be in line. This is for the engine with a HTD (rouded tooth profile) belts. Cambelt Frequentie Lotus info.pdf

Spec is between 110 - 120 Hz not MHz also the crank position is different when using frequency method.

Maybe some usefull info for you in my (old) ac renewal project. (Pics are missing).

Many thanks Keith, I must have done something wrong. However the pics are missing, so if that can be fixed that would be great.

I’m struggling to find a topic with the name AC renewal. It is about an AC renewal / conversion of my 1990 SE. See the link below but it comes up short. http://www.thelotusforums.com/forums/topic/21888- ac - renewal Nothing came up with the search function. I hope someone can bring it back / revive.

Disconnect the hoses from the sandwich plate and fill the coolers/hoses from from that end. Keep the open ends as high as possible.

Picture? (Says more than 1000 words) 😉

Colormatching should be possible but I like to get them in the original color. I have no clue as how much (if any) the 32 year old silver/grey paint has detoriated from the original color.

EMH4 page 45

According the EMH Manual the resistance of the MAT sensor at 20 degC is around 3400 Ohm. So your measured value sounds right. Be aware that the sensor resistance is not lineair with the temperature.

Does anybody know the paint code (color) for the OZ rims used on a 1990 SE? Searching on the forum revealed that the question has been asked before but I could not find an answer. I hope that somebody knows the answer.

The resistance values for the various MAT sensor temperatures is also given in the EMH manual.

NO Heat There is a spring loaded pin, You need to press (there is a small hole on one side) it, after which the steel part can slide of the aluminium part. Attached a manual for overhauling the bendix rear brakes. Bendix Overhaul ex Matra club.pdf

@mike_sekinger as promised, took the wheel off, hope you have enough info with the below pictures. As you can see there is a difference in the sensor, my sensor connector is centered whereas "Tom's" sensor seems to be offset. Looks like my sensor is centered in the teardrop footprint. The outside of the connector securing clip (yelow line) is in line with the inside of the web. The bottom of the securing clip sits 15 mm above the machined Hub Carrier VSS flat.

Looks like my vss is different. At the moment I’m away so maybe Sunday evening late or Monday.