Re: Hot Restart Problem on 23rd Series

Posted by Owen_Dyneto On 2008/6/17 8:36:54

Re heat shields, the parts book will confirm by my memory says the 282, 288, 327, 359 and 356 engines all had heat shields around the fuel pump, but only the 356 had the second shield under the carburetor. But despite being non-authentic, adding a shield under the carburetor, as well as making sure an insulating block is installed, will not hurt and probably will help.

My own experience says that with a car in good condition, even when driving in stop-and-go July 4th parades at 100 degrees, electric fuel pumps should not be necessary as a replacement for the mechanical fuel pump though today's gasoline surely isn't helping any. Some folks use an electric just to prime the carburetor after long periods of non-use.

I'd still believe your problem is probably excessive fuel pressure, a leaking needle and seat or a bad carburetor float, or as has also been suggested, a clogged anti-percolator valve (or fuel bowl vent). On the WDO and perhaps the WDG series there is a diecast metal cover with the Carter trademark, held on with 2 fillister head screws. Beneath it are the adjustments for the anti-percolator valves, metering rods, and accelerator pump. Check this out, and don't forget a drop or two of oil on the shaft supports.

And don't forget to check the exhaust manifold heat riser valve.