28-12-2018, 10:08 PM
I agree with the last two posts.
Modifications (unobtrusive ) should be dependent on the intended use.
I would add that if you use your car a lot for long journeys (as I do) it is best to modify inlet valve throats, Tappet radius increase and better carburettion, followed by correct gearing.-I have not lightened the flywheel .
I do use a stock "37 head but it tends to be a little harsh.
I use a 4 speed Crash box (double helical gears) which is fully rebuilt and a 5.25 CWP in a 1930 casing.This gives a really good advantage on long hills we encounter getting in and out of Wellington NZ. It also is much quieter than a 3 speed.
I should add this is all in my November 1928 R saloon.
I have noticed in the last 12 months the car is going a lot better, I put this down to the engine finally freeing up after 7 years of hard motoring . It is on its first rebore (+20) and I machined everything to tight limits when I put it together (new 7 workshop pistons and new Remax 1-5/16 crank ).
The thing I worry most about are the original Austin rods.
The addition of a Full flow filter makes everything last much longer as there are lots of rubbing surfaces in an Austin Seven engine, particularly in the timing gear area, also roller bearings are very sensitive to wear from metallic particles in the oil. I use Penrite Shelsley Light 20/60 oil which has high zinc content
Best wishes for 2019
Steve Hainsworth Wellington New Zealand.
Modifications (unobtrusive ) should be dependent on the intended use.
I would add that if you use your car a lot for long journeys (as I do) it is best to modify inlet valve throats, Tappet radius increase and better carburettion, followed by correct gearing.-I have not lightened the flywheel .
I do use a stock "37 head but it tends to be a little harsh.
I use a 4 speed Crash box (double helical gears) which is fully rebuilt and a 5.25 CWP in a 1930 casing.This gives a really good advantage on long hills we encounter getting in and out of Wellington NZ. It also is much quieter than a 3 speed.
I should add this is all in my November 1928 R saloon.
I have noticed in the last 12 months the car is going a lot better, I put this down to the engine finally freeing up after 7 years of hard motoring . It is on its first rebore (+20) and I machined everything to tight limits when I put it together (new 7 workshop pistons and new Remax 1-5/16 crank ).
The thing I worry most about are the original Austin rods.
The addition of a Full flow filter makes everything last much longer as there are lots of rubbing surfaces in an Austin Seven engine, particularly in the timing gear area, also roller bearings are very sensitive to wear from metallic particles in the oil. I use Penrite Shelsley Light 20/60 oil which has high zinc content
Best wishes for 2019
Steve Hainsworth Wellington New Zealand.