TheMoonDog

Hi all,

I spent most of yesterday trying to adjust the floats properly on my nikki. I finally got them close enough to start the car only to find out that it was idling way to high and I can't seem to compensate for it.

A couple of things to note if you are rebuilding a carb. Make sure that you have new plugs in place. I didn't get anywhere until I had new plugs and wasted a lot of time thinking that it was actually float levels that were the problem when in fact it was a combination of both. Also, if you are playing with the floats, over compensating will cause the car to flood rather drastically and when you do get the floats set right, and the car first starts, make sure nobody is standing behind the tail pipes!

Has anyone run into the problem with high idle after setting the floats?. I am quite green when it comes to rebuilding carbs but seem to have been fairly successful on this attempt with the exception of this high idle problem.

Also, I am not sure but I may have a slight tear in the manifold gasket. I am wondering if this could be the cause for the high idle speed.

Any thoughts?

karism

The tear is most probably the cause of your problem.Try fixing it,its worth the effort!

karism

The Rx2 R100 service manual gives accurate dimension settings for the float level setting(one i use)

TheMoonDog

Yeah, I figured it was probably the gasket that was causing the problem. Unfortunately, I only seem to be able to find paper gaskets up here for my 82 and they tear so damn easily. I will do a search and see if I can locate a proper gasket somewhere.

Thanks for the input.

The float settings were actually included with the rebuild kit but it didn't work. Not actually sure why. I went with the old way of doing it. Tweak until the fuel is half way up the glass. It is pretty much there now but I think there is going to be more tweaking!

Thanks

karism

I make all my gaskets myself,the thickness i use for the intake is 0.03 "...which is very thick.Works great.

On the float level it`s self it wont help to give you my settings,seeing that my carb is very far from stock..it``s not a really a 2 stage anymore,and so on.

Sure !
Glad i could help

Karis

TheMoonDog

That's what I was thinking of doing. What exactly should I look for in the way of material for the gasket.

Like I said in previous post, kind of green!

I know my carb is far from stock as well. It was modded before I even got the car and it took quite a while to figure out how to put it back together.

Wankelguy

If an intake gasket is leaking, your idle will usually go down rather than up, and the motor will "surge" due to the vacuum leak. Make sure you've got the choke assembly re-installed properly, if you are using it.

TheMoonDog

Thanks for that tip!

Never thought about that. I currently have the choke assembly completely off the carb. I removed it while I was adjusting the floats. I will put the assembly back on before I go replacing gaskets!

karism

Wankel guy is right,check the choke first.
I use Valamoid to make gaskets.
A small wood carve kit is very handy to make the holes,and to get the shape right.

I`am sure your local hobby shop will stock a inexpensive kit !

TheMoonDog

Thanks karism. I was thinking about that. I have a wood carving kit here and was looking at it last night wondering if it would work. Looks like I am on the quest for Valamoid now. I would imagine that I can find it at NAPA.

Wankelguy

Get a small ball peen hammer and lightly tap the gasket material all the way around the face of the part. Use the ball end to slightly indent where the holes need to be cut. Then when you pull the gasket material off, the outline is neatly traced and you can cut it out with scissors. If you do it right, you can punch all the holes with the ball end of the hammer. Go easy if the part is aluminum, you don't want to distort it. A little trick I learned as an engineman in the Navy 25 years ago.

MarkPerez

paper and pensil, do a rubbing of the outline.