invacar LightBulbFun's Invacar & general ramble thread, index on page 1, survivors lists on Pages 24/134 & AdgeCutler's Invacar Mk12 Restoration from Page 186 onwards, still harping on...

[wesacosa]

2 minutes ago, LightBulbFun said:

I rather just chuck a few quid at a proper high quality capacitor and just be done with the issue  pretty sure 90% of issues I have seen/heard about with old points ignition setups is when a 50 year old condenser finally packs up, and then gets replaced with some shitty modern replacement, I see no reason why an old points ignition system cant perform well as long as its fitted with decent quality parts, much in the same way I have seen plenty of electronic ignition systems fail all the same due to shitty parts!

case in point here! I am genuinely surprised that given that James was/is a professional mechanic that they spent all that time fucking about and not once thought to check the modern condenser they fitted previously...

I'd just wang one of these in and forget about it

https://www.ebay.co.uk/itm/191012201833

an Automotive "condenser" is just a capacitor made to shitty 1930's technology and called such

the ADO16 workshop manual even helpfully lists the capacitance value of said Condenser, and most are about that value too, REV's I have measured as 0.22 μf (220 nf) on the dot in the past as well

 

its one of those things that have always baffled me, coming at this hobby from a lighting enthusiast/semi-electronics background, I never understood why people struggle so much with condensers when there are options like Distributor Doctor or a simple suitably rated polypropylene film capacitor available 

 

fair enough, although the gammatronix isn't full electronic ignition it replaces the condenser and uses the points as a low voltage trigger so they dont burn out as easily. The benefit of this is you can leave the condenser in the car and if something happens to the gammatronix you just swap the wires and put the condenser back in and off you go

[LightBulbFun]

had a impromptu late-afternoon-evening run out in the VDP

we went to place our regular online supermarket shopping order and found that the next available delivery slot was a good week from now! so me and mum headed in the VDP to the big Tesco's to pick up a few things to tide us over  

dropped the shopping off at home and then since I was already in the car took mum to something she wanted to check out in the city then a visit via chippy  

and finally home

 

[Weird Car]

[Zelandeth]

This has your name on it.

Think this was a backup I managed to find back when my original one fell to bits, and I wasn't trusting the replacement I had on the way to be serviceable.

I'd forgotten it existed until (literally) falling over it in the garage just now.

[LightBulbFun]

6 hours ago, Weird Car said:

I think thats been run through an AI sadly

2 hours ago, Zelandeth said:

This has your name on it.

Think this was a backup I managed to find back when my original one fell to bits, and I wasn't trusting the replacement I had on the way to be serviceable.

I'd forgotten it existed until (literally) falling over it in the garage just now.

sweet! much appreciated I had a feeling there was one of those kicking around in the collective spares stash, as I remember seeing one in the bundle of engine spares you got from that bloke from which the 200 mile exhaust came from  

[AdgeCutler]

Just back from Tesco, thought I’d take a “Where’s Brian” photo!

[AdgeCutler]

A bit more done with the Steyr Puch today. Crankshaft stripped down and thoroughly cleaned including and most importantly the oilways. It’s a good job I did do this as well, inspire of the oil in the crankcase being surprisingly clean and the strainer clear, the oil way within the crankshaft was choked with what was almost grease like. I guess this is due to it effectively being a centrifuge and throwing all the heavier deposits to the outside over the years.

The camshaft drive gears were pulled off of the crankshafts and kept paired with the replacement camshaft. Crankshaft re-assembled with nice clean oil and is now silky smooth. Second crankcase half has been given a tidy up and its half of the cam followers installed. At that point I decided to offer up the crankshaft as a trial run, it’s quite fiddly getting the bearings to all find their locating dowels while ensuring that the gears mesh in the correct position for timing. 
Next up will be cleaning up the oil pump as this also acts as the bearing for one end of the camshaft.

[Andrew353w]

PROPER engineering-I LOVE it! Well done in explaining everything. 

[Snake Charmer]

Is the camshaft gear alloy?