Jupiter restorations.

[David Kemp]

The leak has been fuxed.
I have had to replace the distributor as its shaft was bent.
My other spare points distributor was also bent.
They were both mini distributors my guess both were bent in a frontal accident .
I am now running an electronic one out of a Mini it works well.
While on ignition my daughters car would not run well untill

She opened the plug gaps . seems modern fuel needs wider gaps. This is something to think about if you are having any issues

[Keith Clements]

What was the gap when the points were opened? The correlation between gap and petrol type may be a false conclusion.
The gap change alters dwell and thus power of the spark. A small gap may make the spark weak and erratic.
Changing the gap also alters the timing. You need to set both correctly and have the correct distributor which is not worn to get the spark occuring at the correct time at all engine speeds.

[Keith Clements]

Two bent shafts are most unusual. The shaft has an offset location into the drive gear. Has this confused you?

Note there are also different shafts and if one is incorrectly attached to a non standard dizzie this might appear to be bent.

[David Kemp]

Thanks for replies. Shafts are bent, putting then in a lathes with a dial gauge shows quite a bit if run out.
I agree fuel type may be a red herrng as she still has ignition issues and testing her distributor the best i can, is showing
An irregular pattern & flutter. More testing tonight will confirm a worn distributor.
Parts are all over 1/2 a century old so wear should be expected. & people say Joe Lucas did not make durable parts

[David Kemp]

Thanks for replies. Shafts are bent, putting then in a lathes with a dial gauge shows quite a bit if run out.
I agree fuel type may be a red herrng as she still has ignition issues and testing her distributor the best i can, is showing
An irregular pattern & flutter. More testing tonight will confirm a worn distributor.
Parts are all over 1/2 a century old so wear should be expected. & people say Joe Lucas did not make durable parts

[Srenner]

The usual problem is the bronze bush/shaft have worn out on the thrust side, letting the shafts wobble. Like most things from the distant past, they were intended to be refurbished.

[David Kemp]

[David Kemp]

My exiskeleton is back from blasters.
It is primed to give it some protection while I repair it.
Blasting brought out all sorts of old repairs and hidden rust
Some of the repairs have now rusted through.
Nothing is that bad with the panels mostly flat & easy to fabricate if need be.
I intend to try and weld the holes where possible , as I would rather have a restoration than a recreation.
Any views on this would be welcome.
Other surprising thing uncovered is the amount if cracked welds.

[David Kemp]

Before

[David Kemp]

[David Kemp]

Is it possible to torque the cylinder heads down without removing the rockers?
I now have the engine up to running temperature ,
The thermo fan worked extremely well.
Problems are now oil leaks from sump & water manifold leaking again. Something i can solve in my leasure.
Another trap for new players was the cam peg adjustment,
I found the cam peg was just stiff. Not correctly contacting the cam, once sorted the cam noise is greatly reduced.

[Keith Clements]

Yes it is, but you may need a thin walled socket. I have made my own grinding down a spare.

Once again a warning! Most blocks these days cannot take the book torque due to corrosion and fatique and history of incorrect procedure. Probably 5 to 7 less is safe. Take torque up in 5 lb ft stages doing two rounds of torque at the same torque. At the first sign of excessive rotation, stop as it is either a cracking block (NOT GOOD THAT IS) or a stripping thread. Inspect to see the cause. It is worth running a die down all studs and a tap through all nuts. Then inspect threads. It is amazing how many non BSF high tensile nuts have been used in the past! Of course you have made sure the liner protrusion is correct for your sealing ring and gasket type, haven't you?

[David Kemp]

Protrusion was checked & rechecked.
I had to reshim liners once as my experience was not good enough to judge the compression of the copper shims.
Another observation is the condensation created in Brisbanes humid climate, has anyone fittied a water trap to the oil system?
& it is condensation, humidity is %100 & the casings are nice and cold . This is perfect for the creation of condensation.

[Keith Clements]

Condensation in the filler tube sometimes occurs but should go away when engine gets hot. The pintel valve should get rid of steam.Oil cooler should have thermostat bypass.
However, water often leaks past head studs so check inside each rocker cover. Use silcone or solder under head nut washers.

[David Kemp]

I started repairing my fuel tank . it has plenty of small holes so I am thinking of lining the inside.
Does anyone have experience with KBS ir POR 15?