dr. wombat

working on prepping my first 13b engine...
wondering if i can use the same dizzy...

thanks in advance!

trochoid

iTrader: (6)

I'd say that's a question for j9fd3s since he seems to have all of the parts microfiches. If they have the same part # then it would be safe to assume they are the same. I suspect that there is a difference though. I vaguely remeber there being a 5* difference in the trailing timing marks of the 12A/13B timing pulleys, but don't quote me on that.

Jeezus

iTrader: (4)

The Machanical advance curve is a little different.

gsl-se addict

iTrader: (3)

Yep. Either will work just fine. The advance curve is a bit different between the two, but I doubt you would ever notice. Currently running a 12A dizzy on my GSL-SE. It has been like that for about 12 years and no problems at all.

dr. wombat

any disadvantage to using the 12a dizzy on 13b?
if remember right, the trailing timing has a mechanical adjustment(manual tranny only...)

dr. wombat

not sure if it matters, but my 13b is an rx4/repu engine...

dr. wombat

also, can i use my OMP from 12a(1983)
on my rx4 13b?

84stock

iTrader: (5)

yes and yes

dr. wombat

sweet!
finally, an answer that doesnt cost $500+ :LOL:

84stock

iTrader: (5)

make sure you adjust the omp for the right flow, check the manual. I would premix until you "know" it is right on the money.

j9fd3s

iTrader: (3)

yep, dizzy's work the same, except they have slightly different advance curves, depending on the year/model.

the curves are in the FSM

74RX4

iTrader: (10)

From 84 FSM.