Distributor numbers

OrganDoctor

OrganDoctor

New Member
Checking the distributor in my 2000TC in preparation for installation of pertronix I find that the numbers don't match those given in my old Autopress book. They call for 41085 for a TC with 10:1
compression. My dist is a 41119 listed for a single carb 9:1 compression.
Don't know if these num,bers are right , or when someone might have changes distributors, but this is the one that came with this car, and has always run well.

Any ideas?
 
Thanks Demetris, that is useful info. It shows me that the advance curves are not the same in any of the three distributors that I have here.
I don't know how important it is, since the car ran well with the one that came with it. When I install the new system I will check the advance curves now that I have the information.
 
As a follow -up to the original thread, I put in the pertronix unit which was easier to install than a new set of points.I also replaced the coil, since the existing one was of too low impedance.
I was disappointed, however to find that my starting problems were NOT from electrics. Removing the plugs, I found them VERY wet with fuel. I dried them, did a compression check while at it (200 pounds in every cylinder) put them back in, started her WITHOUT the choke, and presto: going again.
Now I will only have to adjust the mixture and choke correctly and we should have no further problems.
 
200 psi in every cylinder is very good! Have you just rebuilt the starter motor? I did compression testing on a TC motor a while back, and they were very even, but down a bit, about 145 - 155 psi. I do not know what kind of pistons were in the motor. Anyhow as the motor was not a leaky oil bath, I was of the opinion that the rings and valves were good. The guy who ended up buying the car, rang me the other day to ask what to do about a bad starter motor. I suggested that he track down a 2M100 inertia type motor, off a land rover, as these are better motors than the M45G.

I prefer the way that aviation motors are compression tested, which is more along the lines of a leak down test, which removes the variable of starter motor condition, and condition of the battery, and associated wiring.

James.
 
James, probably this discussion belongs down below in the engine section, but to answer your question yes the starter and every component has been rebuilt.This is a 10:1 compression with very few hours on it.
I think unless a battery is very weak,or starter very bad that this will have little effect on compression tests. Usually the meter will peak out at the ultimate compression figure after about 6-8 revolutions, regardless of turn-over speed. I suppose that 200 pounds is an expected figure for a new 10:1 engine.
 
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