The Family Affair

[biggelmo]

This morning I started refurbing a spare pair of rear arms that I will use to replace the worn ones that are currently on the car.
I got the arms from Dean who had already removed the bearings and bushes so I started with a "tickle" from a wire brush disc in the angle grinder to remove all the old dried grease a junk.

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[biggelmo]

Then they were degrased with thinners and given a coat of etch primer.

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[biggelmo]

Then given a first coat of black smooth Hammerite.
Ill give them another coat when the F1 finishes.

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[biggelmo]

I carried on with the rear arm refurb today after this little widget turned up in the post.
Its a brake cylinder honing tool that I will use to hone out the bronze bushes to the correct size, I know theyre supposed to be inline reamed to 13/16" but the correct tool costs loads and this cost me £10 on eBay.

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[biggelmo]

So to pull the beatings and bushes in squarely I made up this simple puller from threaded rod,duct tape and various washes.

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[biggelmo]

Here it is all rigged up and ready to go.

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[biggelmo]

Bronze bush fitted.

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[biggelmo]

And honed to size,at first I tried lubricating the honing stones with 3-in-1 oil but it took ages to remove any metal so I cleaned off all the oil and honed them dry.

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[paul1275s]

Top job, good to see a bit of home engineering going on!

[biggelmo]

I bloody hate cars !!!!
Some of you may remember that the Mini developed a mid-range missfire on the way to the Riviers Run last month,well I thought id fixed it by replacing the supply loom to the electronic distributor............oh no.....it returned with a vengance and was making the car undriveable between 2000-4000 rpm but was fine above that....
At first I thought it was the HT leads breaking down so I ordered 2metres of good old copper cored HT lead and some NGK waterproof plug caps and yesterday I replaced the old carbon cored leads.
A brief test drive showed no change...still miss firing.
What next???.....It must be the ballasted ignition coil breaking down under load.
So off I went to the Car Shop in Winston Crescent to see if they kept one.....they did,so back to the garage to fit it.
All fitted and wired up,turn the key....lots of wurr wurr but no bang bang.....hmmm now what??
I left the ignition on to check the 12v supply to it (which was fine) and noticed that there were sparks arcing between the coil body and its mounting bracket.......thats not right.
So I checked the coil and it was duff,there was an internal short between the windings and body causing the arcing and lack of sparks at the plugs.....back to the Car Shop I went.
I explained and showed him the problem but unfortunatley he didnt have another in stock so gave me a refund.
So where could I now get a coil on a saturday afternoon.....then I remebered the car accesory shop in Hailsham so off I went and they did have one in stock.
Back to the garage and new coil fitted,the car started first time but again the car still miss fired.
It was time to call it a day and get on the interweb and do some reseach,this is what I found...
My 1989 Mini was originally fitted a points distributor and a ballasted ignition coil
My 1986 Metro engine was originally fitted with an electronic ignition coil
When I fitted the Metro engine into the Mini I kept the electronic distributor so as to make the car more reliable.
The golden rule seems to be from what ive found on various Mini forums NEVER FIT A BALLASTED COIL TO AN ELECTRONIC IGNITION DISTRIBUTOR.

When I brought the coils from both shops they both never said there was a compatibility issue as they both refered to the same catalogue so its not theyre fault.
I checked in both the Mini and Metro Haynes manuals and both said there wasnt an issue.

So this morning I dug out the points distributor for the original 1000 auto engine (never throw anything away),cleaned and gapped the points,fitted it,timed it up and went for a drive
Bliss...missfire is gone...engine is smooth and pull without hesitation....and the rev counter has stopped impersonating a wind screen wiper and now rises and falls smoothly.

I bloody hate cars.....

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[biggelmo]

New HT leads,plug caps and Coil cover

[Miniböttcher]

Good old coils. Put a spare one in your boot before le mans

But lucky you kept your old points.

I looked into this last year when I bought a dizzy from aldon with electronic ignition.

I ending up getting a locus sports coil ! There are 2 type , points and electronic.

You can blow a coil in no time if you mix them up, but it's a bit of a head twister getting it right. Think there was 3 different types in different years.

But your have got your head round it.

I know pual on his S engine with over 100bhp still run with points.

Good luck on you big round trip

[biggelmo]

The trip went well (see other thread) and the car was very reliable even when it threw it down but I discovered hat the clutch actuator had worn the clutch case cover, this caused an annoying rattling that sounded like a worn little end but resting my foot on the clutch pedal shut it up.
So today ive removed the old worn case cover and then transfered the Verto arm over to a good long arm pre Verto cover and fitted a new thrust bearing.

[Joanne]

Hi there, I log on to your new stuff regularly. Your story-telling style is awesome, keep doing what you're doing!
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