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popped the top off of coil

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nsuwift Seriously Crusin Dubber

127 posts · joined Mar 2010 ·

#939982
I am currently trying to work out the electrics on my car and while working on it heard a psshh noise. Went to the engine bay and the gt40 coil had popped the seal and spewed oil everywhere. Any thoughts of why this may have happened.

Governor Wolfsburg Wizard

414 posts · joined Nov 2008 ·

#939986
Ignition was left on

nsuwift Seriously Crusin Dubber

127 posts · joined Mar 2010 ·

#940000
Yeah it was sorted the electrics now and put my black coil back on now. The gt40 one always seemed to be running to hot right from the time I put iton there (burnt my arm on it once while the engine was running).

hellbugged 48's and straight cuts

5,080 posts · joined Apr 2003 ·

#940006
Did you have a resistor on it????

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#940060
nsuwift wrote:I am currently trying to work out the electrics on my car and while working on it heard a psshh noise. Went to the engine bay and the gt40 coil had popped the seal and spewed oil everywhere. Any thoughts of why this may have happened.
Never ever heard of a coil doing that...
Maybe very old coil and the oil boiled and split the seal open???
or the coil had short circuited inside causing the coil to overhead and pop the seal...

GT40 don't use a resisitor as far as I know..

the GT40R is the resisitor type.. so with no resistor way too much current...

I know My Son always disconnects the coil when working on an engine with the ignition ON...
and they do heat up very fast with the engine NOT going..
and the points not openng and closing...


LEE
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

nsuwift Seriously Crusin Dubber

127 posts · joined Mar 2010 ·

#940112
It is a gt40r coil

No resistor on it 😊 wasn't sure what a resistor was so just put it on anyway.

Still having dramas withe the electrics had evrything working except for low beam headlights. Fixed that got all excited, went back down to garage to tidy evrything up as best i could and found that all I had taillights with parkers but no taillights with low beam. So all i have done is move the problem from the front to the back.

One of those jobs where I thought how hard could it be. Maybe its time to admit defeat and put it the hands of a professional 😂. I understand the wiring diagram form the samba but somethings not right.

Lucky Phil Wolfsburg Wizard

480 posts · joined Aug 2010 ·

#941880
Yep, the r on GT40r stands for resistor.
So 12v constant power to the coil with no resistor.
Not surprised that it cooked.
They have a weak spot that allows the oil to vent when overheating.
Let the oil out and they're no good.

SuperOwen Fahrvergnugen

868 posts · joined Jan 2009 ·

#941891
All electronics run on smoke and oil, if you let it out she no good!!

nsuwift Seriously Crusin Dubber

127 posts · joined Mar 2010 ·

#941993
Electrics working fine now chucked the gt40r in the bin and went back to my bosch black coil. Basicaly haven't been outta the car (unless to go to sleep) for the past 48-72 hours putting some k's on it before heading out to a few vw runs and car shows, after I replace the hand brake cable that broke. Finding it hard to keep the old girl running but hey thats all part of the fun isn't it.