passed mot :-)
passed mot :-)
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whitewolf

Original Poster:

751 posts

188 months

Thursday 28th February 2013
quotequote all
However... parked up and rev'd its fine, in gear under load from 3k Revs its starts popping banging and I'm guessing misting... if I manage to reach 4k revs its like hitting a limited, constant pop bang bang bang bang and no speed gains.



So before I go and tinker, what do you reckon?

Recently I've...

Replaced 6v coil for 12v (resistor failed and removed)
Altered timing (admittedly have checked it with a timing light yet just guessed)
Re did the points gap.


I have a colortune 500 and may use that as I did a while ago to visually get an idea ..

Does it seem to describe a common problem?


Many thanks (tired and have the Mrs nagging about being nice) Mick


Slow M

2,862 posts

228 months

Thursday 28th February 2013
quotequote all
Coil again?

(Congratulations, BTW.)

Best,
B.

whitewolf

Original Poster:

751 posts

188 months

Thursday 28th February 2013
quotequote all
Tbh it is possible... It was a spare that came with the car and probably is knackerd.


Is there a way to test? Other then get a new one?

the other tim

136 posts

169 months

Thursday 28th February 2013
quotequote all
Condenser, check for arcing across the points. Points, condenser, rotor arm and possibly dizzy cap is not a bad idea for a good tune up.

bluezeeland

1,965 posts

181 months

Thursday 28th February 2013
quotequote all
Hi Mick,

The altered (guessed) timing and the points gap ? Strobe it and get a electronic ignition, fi Aldon.....

Frank

dryden

361 posts

191 months

Thursday 28th February 2013
quotequote all
I had the same problem with mine when I first recommissinoed it, after a few years incarceration. It turned out to be st in the tank, causing inefficiency in the pump which was new at the time, so unsuspected. Rectified short term with a carb clean and an in-line filter south of the pump. Long term fix has been alloy t ank.............but they are expensive.

whitewolf

Original Poster:

751 posts

188 months

Thursday 28th February 2013
quotequote all
the other tim said:
Condenser, check for arcing across the points. Points, condenser, rotor arm and possibly dizzy cap is not a bad idea for a good tune up.
Getting a timing light tonight to borrow (long story but I can't use my dads as the parents have split up after lots of years and my dads took his stuff :-/ )


whitewolf

Original Poster:

751 posts

188 months

Thursday 28th February 2013
quotequote all
bluezeeland said:
Hi Mick,

The altered (guessed) timing and the points gap ? Strobe it and get a electronic ignition, fi Aldon.....

Frank
Frank - this is my next move Tbh. I fitted new a year ago (points) but EI is the way forward.

whitewolf

Original Poster:

751 posts

188 months

Thursday 28th February 2013
quotequote all
dryden said:
I had the same problem with mine when I first recommissinoed it, after a few years incarceration. It turned out to be st in the tank, causing inefficiency in the pump which was new at the time, so unsuspected. Rectified short term with a carb clean and an in-line filter south of the pump. Long term fix has been alloy t ank.............but they are expensive.
Filter looks ok. Fresh fuel in this morning. :-/

whitewolf

Original Poster:

751 posts

188 months

Thursday 28th February 2013
quotequote all
Filters clear...



Generously donated from jcb a year and half ago. Lol

Just had the car running with lights off, can't see any arcing or leads breaking down under revs .

Slow M

2,862 posts

228 months

Thursday 28th February 2013
quotequote all
Is that particular coil supposed to run with a resistor?

Best,
B.

whitewolf

Original Poster:

751 posts

188 months

Thursday 28th February 2013
quotequote all
Not now. The coil fitted is a 12v coil.

Original was 6v with a ballast resistor but the resistor failed.

I have the 6v coil, kept as spare as I know its decent, if I should ever get a new resistor and go back to a ballasted version.

phillpot

17,439 posts

205 months

Thursday 28th February 2013
quotequote all


I'd start with things you've "messed with" ..... Timing and or points ???

bluezeeland

1,965 posts

181 months

Thursday 28th February 2013
quotequote all
+1

whitewolf

Original Poster:

751 posts

188 months

Thursday 28th February 2013
quotequote all
phillpot said:
I'd start with things you've "messed with" ..... Timing and or points ???
I'm going to. However tonight its one of the lads birthdays... Bowling.

Fiscracer

585 posts

232 months

Friday 1st March 2013
quotequote all
the other tim said:
Condenser, check for arcing across the points. Points, condenser, rotor arm and possibly dizzy cap is not a bad idea for a good tune up.
Yes yes and yes for the popping and banging.

Plus I'd suggest timing is retarded so it won't rev. What change the timing if you cant check where it is now? Not sure of the engine but start at about 28

whitewolf

Original Poster:

751 posts

188 months

Friday 1st March 2013
quotequote all
I decided last night while bored, and bought an electronic ignition...

Gonna pop and buy a new coil from a car shop later.


When I get to borrow the equipment I'll double check on what I currently have and fit the new bits and reset. then fit all the.

pridaux

4,974 posts

171 months

Friday 1st March 2013
quotequote all
whitewolf said:
I decided last night while bored, and bought an electronic ignition...

Gonna pop and buy a new coil from a car shop later.


When I get to borrow the equipment I'll double check on what I currently have and fit the new bits and reset. then fit all the.
I may be wrong but if fitting an electronic EI than you will need the correct coil that works with electronic ignition
A

whitewolf

Original Poster:

751 posts

188 months

Friday 1st March 2013
quotequote all
:-/

Got a friend with a mini and one with a marina who both running the same manufacturer EI Kn standard coils.

Although I have heard people say that standard coils won't won't.

Chris on here with the green Vixen is running EI too with normal coil. His only thing is the rev counter is a bit skewiff.


The EI I've bought is not non ballasted systems, which mine now is.


Adrian@

4,504 posts

304 months

Friday 1st March 2013
quotequote all
For what it is worth, I stopped fitting Aldon's as they were clashing with the caps and limiting high end advance...I am still modifying the ones I see.
Adrian@