Hey Demac,

yeah JDM planet has them as listed as discontinued same as Bro and that other website is fraudulant.

I was going to suggest JDM Planet but that's where you got the picture from.
I did buy a couple of heater control valves from them
also did you try BProjects ?

i found one on this website but have no idea how trustworthy they are
https://www.peshaqu.com/index.php?main ... t_info&products_id=700048

Did you find a genuine replacement? I got a mate to turn up a bit of nylon that fit in there and works a charm.

wowsers thats alot of spark plugs! at least its an L4!

for the last 5 years with no datto been thinking of industrial spark plugs
on side valve and flat head engines used in farming.

They seem to use these pre-chamber spark plugs that when replaced with
normal spark plugs the economy and output is reduced considerably.

Maybe due to lower compression ratios these sparkplugs might show a bigger
difference than higher compression ratio engines but it seems now Benz and
even Toyota have achieved 45-50% improvements with gasoline 4 stroke using
pre chambers like that in industrial applications.

Could it be that PPC units will make high performance 4 stroke engine perform
even better and even regular 4 strokes engines run with improved combustion?
less carbon build up and better all round performance due to one small combustion
occuring that then feeds the larger combustion process?

https://www.hatraco.com/sites/default/ ... 3_dp_ip.jpg?itok=zOk9dA0L

On the topic of old school mech ideas I would really like the opinion
from the older hands here for my long time brain fart....

I have been toying with designs for a custom flat head in that
1. the spark plug uses a pre chamber design,
2. which feeds a separate pre chamber where the side valves are
3. which are separated by a trunk like port to the dished piston surface.

This is using a very long stroke to slow the whole process down and improve
on torque by running at lower rpm to achieve bigger torque numbers than power.
Compression ratio would be about 7 to 1 utilising lower octane fuels.
spark plug avoids the inlet and exhaust valves as it sits in between the 2.
I call it the El3fant PPCC Passive Pre Combustion Chambers.

2 combustion stages with a controlled swirl to the 3rd stage of expansion into cylinder.
The elephant trunk port (flat like a whistle) allows deep swirl with little turbulence.
The drawing is my first done many years ago but improved to reduce the height
and volume of the combustion chamber by lower the overall height and also more
tapered to reduce hot spots. The idea is lower compression allowing for better
sidevalve small industrial engines but also boosted L4 willy engines at first
and maybe one day flat head ford v8.

If someone can draw it in 3d one day or suggest a package I could use to do it
Id love to have a way to play with the overall volume as well as I would love to
achieve 8.5 to 1 or even 9 to 1 using an extreme undersquare design.

First want to make a Willys Go Devil engine head as they are simple and 79.4 mm bore x 111.1 mm stroke.

Attach file:

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  Elefant CC.jpg (21.72 KB)

Ive been running carbs on my Datsuns for years.
If i was to bet a dollar on every person that told me you cant run a carb on a KA24D (drop the "E"), I'd be rich.
Twin Weber 38 sync's with a draw through supercharger runing a Chevy 350 distributor. And lets back that up with some Nitrous.
Some would say I have the fastest carbureted Datsuns/Nissan on the planet.
That may not necessarily be true but for my sake, i would hope so.
So many things come into play to make this happen. Fuel delivery, ignition timing, spark plug choice and gap.
Its a science, and in the end, knowing how to read "Spark Plugs' is crucial because a computer is not doing it for you.
I will go through 5 boxes of spark plugs in a single day at the track. 👍
Its taken me years of trial and error and multiple engine rebuilds to get where im at.
750 CFM though a 4 cylinder is very do-able.
I enjoy every second of it. 🙂

Nice photo effect
looks great with the Gilmer drive
dp

The 21st it is.
dp

Hey Guy's

does anyone know where i can get the screw in steering column bushing?I have looked at all my usual places and they are either sold out or not available anymore.I really need to locate one or maybe i can use the rubber bushing sold on ebay for the non collapsible column but in the add it says not suitable for the collapsible type column.What are my options?

This is the one i need.The second one is an option(maybe)

Attach file:

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  Bushing.jpg (63.43 KB)


  Rubber Bushing.jpg (13.79 KB)

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Without pics it's a bit of a guess, was there a datto with a smog pump as some manufacturers used or an air admittance valve as others used to let some fresh air into the exhaust and burn up the rest of the fuel? Ford used a system that was just a one way valve, a number of others used small air pumps. Circa early 80s