Quick Review on the Trollhole 2015 big cap electronic distributor. F-2F
Received my new distributor from Trollhole yesterday and made some time to install it in my 82 Fj45.
The distributor it's self appears to be very well designed and produced. Only two areas I found that were questionable on mine. One was, one of the cap spring clips had a bent brass pin, so it was a bit weak on one side when the spring was pulled down to secure the cap. Very easy fix with a small machine bolt and nut installed, works fine. Second was just my preference, the shaft end tip were it goes into the pump slot was still Sharpe on the edges from machining so I just dressed the edges on my buffer wheel to take the edge off, but as said my preference and would of been fine.
Used some mic calipers to compare the shaft, body, gear, with stock Toyota distributor and all was dead on. Nice!
The guts of the dizzy seem very well made and the vacuum advance unit was perfect. Very small amount of vacuum was applied with my vacuum gauge (barely one pump) before the mechanism started to move, so I would think if a carbs vacuum system was a bit weak you would get a good vacuum responses with this distributors diaphragm. The bearing plate is a nice addition as found on the newer Toyota electronic distributors, very smooth.
Never seen a rotor like the one that comes with the dizzy so not sure were to fined one when it comes time for replacement, but is well made.
The cap is a 1975-1978 type so that is nice for future replacement. It too is a well made cap.
The install was too easy, I used my Toyota's stock electronic dizzy coil, I just removed all the igniter wires since the coil is internal resistor type and hooked up the wires - Red to positive side of the coil along with the Black/Yellow 12V ignition harness wire. Black to the negative side of the coil. Had one black wire that went to the negative side with the stock distributor but left it off and seems to be fine without it. If anyone can comment on that black single wire it would be nice to know if I should have it attached, just in case.
One pump on the gas and it started right up. Set the timing after it was warmed up and notice two things - one the engine was much smother and second my RPM gauge was no longer fluctuating by 10-14 rpm. It was pretty solid with a 2-6 RPM change, that is worth it right there.
Oil pressure is stable (just keep an eye on the oil pressure for a few miles), no mechanical noises coming from the old block.
Sum it up you can buy the aftermarket electronic conversion kits for a few buck less and they work just fine for your old non electronic dizzy but for the price that Trollhole is asking for a complete distributor with new bearings, bushings, gear, shaft, and Marshals personal touch on his Sun test machine before it goes out to you, I think you cannot go wrong.
Keep the old dizzy in the off road box for back-up.


My 1 cents worth