Sunday, 21 August 2022

More 10CR checks


Spent a few hours over this weekend, preparing the car for the 10CR. Starting on one of the lifts in a friends workshop, with the aim of checking all rubber fuel hoses from below. First check was the fuel hose between the (FI) fuel tank and the 8mm metal pipe running to the engine bay. After cleaning 12 years of road grime from it, I found out there was nothing really wrong with it. Which turned out to be a good thing! Because I was reminded that on a FI tank the supply hose connection is 12mm. Clearly forgot that over the 12+ years since I restored this car 😶 At the time I fitted a fuel resistant 8mm hose with a 2mm wall thickness inside the hose end that connects to the 8mm pipe.


So that would have been a challenge to replace with a half empty tank and only normal fuel hoses at hand. All the rubber fuel lines in the engine bay were also in good condition. Not really surprising as these were all renewed in the past few years.
To prevent future problems, I think I will replace the two separate outlet and sender units for a normal carburetted version. The tank’s redundant hole should be straight forward to close up with a round steel plate with the same dimensions as the sender unit’s base plate.


Next job was a bit of tinkering and cleaning of the carburettors. Starting with the suction chambers and pistons. Main job here was polishing the inside of the suction chambers and the pistons outer rims. Though one of the pistons had clearly accumulated some dirt on its piston’s surface.





With the internals cleaned I spent some time on the custom carburettor linkage. Mainly consisting of a good clean and some fresh grease inside the link rod ends. Inspecting the rod end’s surfaces proved there was nothing wrong. And as such still one of the better adaptations on this car.




Final jobs were a detailed general check of the engine bay; emptying the catch tank, changing the routing of the two fuel hoses connecting to the carburettors, checking the earth point (found and rectified one loose bolt behind the RH headlight, caused by a stripped thread). Next weekend I will have a look at the front suspension. But in between I’ll start with preparing the route for my GPS and mark the route out on a good old fashioned paper map!



4 comments:

Phil said...

hi, have your su carbs have poppet valves on the butterflies ?..thanks

Beans said...

No, I deleted them. I used plain discs to replace them

Phil said...

did you find it runs better and easier to set up

Beans said...

Can‘t comment on that as the valves had already been soldered up when I bought the car well over 35 years ago