Classic/Antique Car Repair: hot blooded Ford 240, well lit place, eldon missouri


Question
I have a '65 ford Custom with a rebuilt 240 ci 6 cyl.  Runs great, but tends to be hard to restart after warming up.  Carb rebuiild was a little problematic but seems to idle fine and runs well at speed.  After warmup, occasionally gets sluggish when foot off gas pedal.

Answer
OK, Mack, I got your follow up information.  Thanks. I assume since you didn't mention cranking speed that your problem is not electrical - based on that then:

I see the problem now, your carburetor is not set up right - I think the float level is set too high, causing liquid gas to percolate down into the intake manifold when it gets hot.  There are very likely other issues with the carburetor also - possible internal leakage, bad power valve, wrong jets etc.

Most commercially rebuilt carburetors are worse than when they went in for rebuild- there are a few competent shops, but they are hard to find and very expensive.  

I've found the best way to get a good carburetor is to buy a brand new one, not a rebuilt.  

The second best way is to find a really good rebuilder and get them to check it out and be SURE they flow test it.  Most shops just put the kit in there and hope.   

The third best way is to rebuild it yourself, with a good kit from someone like Jon Hargrove at "The Carburetor shop" in Eldon, Missouri - it isn't difficult, but you need a clean, well lit place to work and the ability to read carefully and follow the directions in the kit. Of course if there is a damaged part in the carburetor, you will not be able to fix it - that is why I suggest you just buy a new one.   Try at your local NAPA store to see if they can help you. If not, try C&G Ford parts in Escondido CA.  

Links to the carburetor shop are at www.thecarburetorshop.com  You can also ask them at the carburetor shop to recommend a good rebuilder for you - it will be expensive, but when it comes back, it will run like a brand new one!

For C&G Ford parts, just do a google search.

I am going off duty here for a month -medical reasons- so I won't be able to help anymore until I get back - hopefully sometime in August.   

Check your oil dipstick for the smell of gasoline - you may be contaminating the crankcase with the liquid gas that is bubbling out of the carburetor when you park the car -that can ruin your engine bearings - if you smell gas on the dipstick, change your oil and don't drive the car again until you get the carburetor straightened out.

Good luck to you, and thanks for keeping the old ones on the road!

Dick