I don't know what I did before Randall and Google.
Craig
72 TR6
On 07/13/14, Randall<TR3driver@ca.rr.com> wrote:
> I have been looking for one of the Bosch blue coils with no luck. I
> understand that they are epoxy filled vs. oil filled?
Which is odd, because the oil provides better cooling for the coil. Normally,
epoxy filled coils are only for short-term race track
service. The epoxy provides better vibration resistance, but poorer cooling.
Note that there are quite a few different coils that are blue and say Bosch on
them. Eg,
http://www.ratwell.com/technical/BlueCoil.html
> I have a misfire in my TR4A at constant speeds over 2,500 RPM
> but it idles
> perfectly at 1,000RPM and will pull through the gears to
> 4,000 RPM like
> crazy, just can't drive over 2,500 RPM for any length of
> time. I am thinking
> it might be related to my coil.
Seems unlikely to me, but could be. It's certainly worth swapping in another
coil as a test.
> Or, it could be fuel
> related,,
Does sound more like fuel starvation. Will it pick up and run smoothly if you
back off the throttle but keep the rpm up?
> or maybe it's
> those bronze valve guides that are being replaced with stock cast iron
> pieces?
Another possibility, if they weren't reamed large enough after installation.
> Still, I would like to get a source for the blue Bosch coil
> just in case.
FWIW, I've got about 4 years on a Pertronix coil since my new Lucas Sports coil
died in 2010. Works great so far.
Randall
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