[oldsouth]

How does that piece come off. I remember looking at mine and could not see any screws.

 

[Sledge4.2]

remove rear wing deck lid. There are 3 or 4 button head allen bolts.

then, there are two 8mm sheet metal screws into speedclips on the rear trim piece. To get at those:

1) remove the aluminum slats behind the rad fans (two phillips head each)

2) remove rad fans (4-8mm screws each). no need to remove all the way, just loosen and turn fans counterclockwise. Soak in PB blaster, both my dialbos these were rusted)

3) reach behind light assembly and remove 4 10mm nuts holding light assembly to mounting bar. Only one is hard to get at, and you cant get at it with the rad fans in place (at least i couldnt).

4) remove light assembly, and get at the 8mm screw.

 

[oldsouth]

Thanks. I remember wanting to tighten up the Diablo emblem that was a little loose. I removed the wing deck lid and button head allen bolts but that is as far as I got. Could tell it was still attached somewhere on the bottom.

 

[Sledge4.2]

its a bit of a job of patience, but good to take it all apart and clean everything.

 

[Sledge4.2]

I have read about how Chrysler influenced the design of the Diablo, but have not seen anything conclusive such as before and after pictures, or first generations of the Diablo before it came out in 1991. Does any one having anything to share on the topic?

 

[Sledge4.2]

i need an original WSM for the early Diablos(which exist) and book of parts diagrams (which I have never seen or heard of). There is enough of a difference in the early cars vs the VT's. The original WSM are probably barely readable, and pictures of them makes them unusable due to small print. If anyone knows of a source for either i will pay for it.

A very long story short, I traced the non-start problem to a splice in the Engine Speed and TDC sensor wiring, installed as part of the demobilization system years ago. Fixed that, and she fired right up. The LIE was reading the motor wasnt running (flywheel turning), so it wasnt energizing the fuel pumps. Hopefully this weekend i will get to balancing the banks and adjusting throttle linkage. The engine sounds good, smooth and strong.

I also refinished the reverse light surrounds, cleaned lenses, and wired up the rear clip.

 

[SPGlass]

That's great to hear Geno! I'm envious of your progress! 😁 Do you mean the red tail light surrounds? If so, what did you do to refinish them?

 

[Sledge4.2]

refinish is a strong word. I stripped and repainted the fog light aluminum houses, dissabled fog lights and 4 lights, cleaned, rewired two of the amp plugs, removed aluminum grill to clean and remove VT badge, reset Diablo logo, removed, cleaned and re-gooped the grill behind the aluminum slats. Pretty funny that is just plastered on there with lamborghini goo.

 

[Sledge4.2]

Does anyone have a good source for the ignition coil amplifiers? the last time i bought a set there were lots, but i cant find them now at a reasonable price in the US. XM631 or BKL3B

 

[Sledge4.2]

The best i could do was find part number WVE 6H1226 from Rock Auto at $83 per amplifier. I am having a spark related issues, and I believe its the amplifiers, but since they are difficult to test, and prone to failure, i am going to replace both.

I have another shake-down issue: rad fans not coming on, engine heating up before warm-up cycle is complete, no water going to radiator, it turns out the prior owner put in the wrong thermostat. The dimensions dont match what @mikael82 posted a while ago (thank you for that useful information), adn its listed as an 83 degree t-stat, so I am going to need to rectify that before proceeding.

 

[DiabloClyde]

Geno, make sure to double check the obvious: do you have enough fluid in the coolant tank? Happened to me when I did my thermostat project last year! 😬

 

[Sledge4.2]

Mark, i hope you are doing well brother, we need an update on Clyde.

thermostat is def the culprit, George Evans carries them for $150, when I recieve it i will compare to the information previously compiled by @mikael82

 

[DiabloClyde]

I know, I have not updated anyone on Clyde in a long time. I should have full report in the next couple of weeks.

 

[Sledge4.2]

The best i could do was find part number WVE 6H1226 from Rock Auto at $83 per amplifier.

They arrived, and are marked TRANSPO-CN BM300-06021

 

[Sledge4.2]

The 7-12 bank coil and amplifer has been replaced already, the other side was OEM. I replaced both amplifiers, and noticed that the older (original) coil was bloated. So i replaced that as well.

 

[Sledge4.2]

Thermostat ($150) and gasket ($8) arrived from george evans. its the exact same dimensions as posted by @mikael82 in this post:

Thermostat cross reference | Lamborghini Talk (lamborghini-talk.com)

Thank you everyone for contributing to that thread, it was very useful.

The only marking on this thermostat are 'made in germany" and "BTT". It begins opening between 74-76 degrees, and has the jiggle pin.

 

[SPGlass]

That's great info Geno! I actually just ordered one from Evans. After seeing your post I called back to make sure the gasket was included. It was not so everyone make sure you ask for that as well. Unfortunately, they did not have the second half of the thrust washers that I needed.

 

[Sledge4.2]

thrust washers for what?

 

[DiabloClyde]

As it relates to the gasket on the thermostat, when I did my coolant hose work about two years ago lo and behold I found a gasket that exactly matched it at an auto parts store. i believe Napa or O’Reilly.

 

[SPGlass]

I think Geno is getting a good customer discount or something. Mine with the gasket, shipping and tax came to $230. Much better than the $450 or whatever Lamborghini charges!