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Posted: Sun May 09, 2010 2:36 pm
by 911hillclimber
Thanks as ever for the ideas!

Before reading them though I was in the garage asap today.

I set the carbs to factory set-up (I even read the instructions)
Filled with 2 gallons of fresh fuel having checked the filters (I do listen to you) which were clean.
I took the 3 plugs out of the offending side of the engine. #4 was 'unfired' and the other 2 sooty (as in too rich)but firing.

I had found some new plug lead from about the mid 80's with old fashined coper wires down it and an old plug connector about 1973...

Replaced the #4 existing lead and separated as much as possible the three leads.

Cranked it over forgetting to reconnect the linkage between the two carbs (idiot) so it started on one set of acellerator jets.

RAN A DREAM :shock: :?: :shock: :alien: :albino: :drunken: :) 8)

Not a pop or a f@rt or a bang anywhere.

I waited for it to warm on a 1200 rpm ish tick-over (as per PMO instructions)

Not a sound. The pulses from both side are even and the heat is the same too.

After a few mins blipped the throttle and it sure does spring to life.

Stopped it and took the plugs out. All three running but #4 still not as sooty as 5 and 6 (4/5/6 are the cylinder numbers on that side of the flat 6)

Put back together and tried again.

As before, running a dream and very responsive to a 25% throttle movement blip.

Tided all the leads, made cable-tie separators for now and tried it again.

As before.

I think this is a result.

To the post mortum:(see pic below)
1
Lead separated from the plug top.Plug top taken apart to find the resistor 'slug' rattling in the insulator tube.
2
Looked at the cpeer wire strands in the dist cap ferrul (?) and there i find the cable is not folded over under the copper sleeve but cut short. The ferrul/wire connection must be by the barb cutting through the insulation and into the strands.

I have always folded the wire over and then crimped the ferrul The barb sismply making sure it does not pull off later.

My replacement has the strands soldered to the ferrul for peace of mind. All the other dist ends are the same as this one, so the lot will be changed to the fold and solder method.

So there we are job done at last.

It was always going to be something daft or catastrophic.

Prepping the car now for a weekend at Loton next week.
:drunken:

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Posted: Sun May 09, 2010 2:53 pm
by Matt black70
Well done, what a relief it wasn't more. Are you going to put the faulty lead back on to prove it was that?
I always like to be able to turn a fault on and off to prove I've found it.
Weather permitting see you on Sunday :)

Matt

Posted: Sun May 09, 2010 5:30 pm
by 911hillclimber
Yes, did that after a deep breath.
Bang de band de bangbang.

Changed backover, silence.

Pity the replace ment lead is sky blue!

Going to change the lot over when i can find the parts that go into the dist'.
Getting these old parts is quite hard.

The lad in Halfords who sold me the Colour Tune asked me what it was for.
The weekend before, different Halfords, the lad there asked me what a coil was.....

Mind you: if a young lad in Halfords asked me what an ipoddy/nav/boomer/phyco/blipper was i wouldn't know.

So call it quits. :albino:

Posted: Sun May 09, 2010 8:03 pm
by Gary71
Excellent!

I guess you still need to tell the other half that it was the PMOs that fixed it and not a £10 HT lead... :shock:

Posted: Sun May 09, 2010 8:27 pm
by 911hillclimber
Gary!

I've been married for 32 years: do you REALY think i can fool her about anything! :cry:

I wanted/needed the PMO's to suit the 3.2
The 40's were stretched to the limit.

The PMO's I have are fabulous, and you can see why they are expensive new.
Thankfully, Mark has the 40's on his flat 6 and they are working a treat so we are all happy, but the money has gone but well spent as far as I'm concerned.

The way the engine blips is amazing. I'm so used to lazy injected engines.

The lead cost nothing just to make it worse! (well, I think I bought 5 plug tops for a £5 note....)

It works = I'm happy

Just got to drive the thing now, something money can't buy. :roll:

Posted: Sun May 09, 2010 11:44 pm
by jwhillracer
Another lost order for the new skip hire venture............. :(

Well done Graham!

:drunken:

JW

Posted: Tue May 11, 2010 7:26 am
by 911hillclimber
I too hope all will be well at Loton this weekend and this is not a false dawn.

The throttle response is nothing short of amazing. If all is good then I can move forward some more.

Driver:
Get things sorted in my head, get confident.
Car:
New steering rack to be machined and fitted
New front jacking point/maybe new super-low entry alum jack
Noise of the exhausts (must contact Terry to see if he still has the old ones.
How he ran the engine on open pipes I'll never know.

Posted: Wed May 12, 2010 5:11 pm
by steve wright
Graham you should frame and hang that plug lead... :lol: I've got a little "trophy" cabinet of things that caused angst, blew up, etc to remind me of the problem solving which makes our hobby so much fun! :shock:

Posted: Wed May 12, 2010 5:22 pm
by Gary71
I'm trying to get a pass out for Loton on Sunday to see it in action!

Don't break it during Saturday practice! :)

Posted: Wed May 12, 2010 5:41 pm
by 911hillclimber
Into the Trophy box is a great idea.
The first bit to get into mine was off my tuned Lambretta Wildcat 5 port GT 200. (who know here what I'm on about?!)
Then I snapped a stub shaft in my Mk1 Spitfire...

This would be a worthy addition. :alien:

Be good to see you at Loton Gary, but we might get drowned.

I will be exploring the gearchanges this weekend, and the brakes, and the new slicks, and the carbs, and the... :)

I am a bit worried about the CV's. They are mega rare March F2 CV's and not made anymore. If they pop then it will be 911 CV's and some of Bob Dayson's shafts (if he were here to make me some...)

Lesson: enjoy it all while you can before Nature comes back for you.

Posted: Wed May 12, 2010 6:32 pm
by Gary71
I should have qualified my comment 'Loton...if it's not forecast to rain !' ;)

Posted: Sat May 15, 2010 6:47 pm
by 911hillclimber
Practice today at Loton. Great weather, but 6 steps forwards and 3 steps back.

Car ran well, but the bangs and pops are back on the OTHER side of the engine!

My mind boggles now.

:evil:

Posted: Sat May 15, 2010 10:58 pm
by Gary71
More duff HT leads?

Unfortunately I won't be able to make it tomorrow, I've managed to damage a toe and walking is not high on my list of things to do!

Hope it goes well tomorrow! :)

Posted: Sun May 16, 2010 6:48 am
by 911hillclimber
I have made up a whole new set to fit this morning Gary.

It is also raining....

Lots of rest for you then, read the papers, Breakfast served on a tray, watch the GP (fall asleep) and be pampered all day (?)

Some of us will be tired, grubby and damp! :albino:

Posted: Sun May 16, 2010 7:04 pm
by 911hillclimber
Got to the dry track and installed the 6 new leads....
Fired the engine....
Bang crack and pop it went....
Not the slightest bit of difference.

Made the first run which felt good and strong and I'm getting more used to the driving of the thing.

Had some sunny lunch in the new posh dining area of Loton.

Went back to the car and chatted with a few spectators, racers and some of the loony Porsche Speed Champ runners!

Started the car to warm things up.

Silence. Not a pop snap or pop anywhere.

I had done nothing to the car whatsoever. :?:

It ran the hill cleanly.

To the car results:

The time came down from an embarrassing 73 to 62 secs and the damper tweeks paid off.
The starts were good, 2.09 isn't bad at all for any hillclimb 2 wheel drive car.
The poke this car has on song is breathtaking @ 450 bhp but it is very hard to deploy it.
Driving this is a major challeng for me now, but I'm encouraged so far.

Grip is superb, and the brakes will be very strong.

I now need a practice day in private with a few friends who know cars to dial the car and get used to it.

A trip to the rollers is needed, but first a chat with a Porsche friend has made me wonder about the distributor. I might go back to points and see.

Anyone got the correct very early ignition condenser?

Just to prove it exists!

Me and my fellow loonies:

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Passing down into Triangle on the rev limmittterrrr

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One of the best bend on the hill:

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