Hot start-up questions.....

Probably wont need no new battery.

Change them wires from battery to starter and from battery to earth.

Most likely this will solve the hot start problem.

Good luck with the new spider.

She looks like a QUEEN.

//B//

 

Describe your hot mis-start symptom in more detail. If the engine cranks over well when hot, but doesn't fire -- most likely a flywheel stability problem. If the engine doesn't crank over well -- then you'd be looking at the primary electrical system (battery, alt., connections, etc.).

 

check out this thread too:
http://www.ferrarichat.com/forum/showthread.php?t=152618

 

As above, depends on what happens whith hot start. could be one of several things. More explanation is needed.

Mine had trouble, but engine would turnover but not catch. New tripple seal and repacked flywheel and now no problem at all.

 

All good advice above, I'll throw in my 2 cents worth.
After a drive I always raise the rear deck lid and let the engine breath (cool off) even if just for a few minutes. Let the heat dissipate a little, your engine will thank you as well as your solenoid. If I'm about to put the car away the deck lid always goes up and the car cover only goes on the front half of the car until I come back later after the engine, exhaust, cats, etc. have had to a chance to cool down.Enjoy the ride!

 

Scott, I had the same exact problem in my 1990 348. I had the dealer change the two fuel regulators and clean the injectors, and now the car works fine. No more hot start problems.

 

Yup. If a 348 motor turns over via the starter, but doesn't "catch" to actually start up, then the first thing to check are the fuel regulators.

The easiest test is the No Doubt Hot Start method: start 348 when cold, drive until hot, then turn off the motor. As soon as the motor stops turning, immediately restart.

If your 348 restarts per the above test, then your problem is not flywheel grease related.

Easy test...you don't even get your hands greasy.


Now, to test the Fuel Pressure Regulators, simply pull off the tiny black vacuum hose that runs to each one. The presence of fuel in that line indicates a failed FPR.

 

Had a hot start problem with my 90 ts.
found both regulators leaking through the vacuum port.

i used the bosch part to replace both. number is on the regulator.
30 minutes per side to replace.
did a write up on it somewhere if it's still around.

no more issues with starting.

 

car had this problem when i first got it. it was from the flywheel grease. this will need to be done with the belt change anyway so dont waste effort on electrical issues until then. good luck

 

My 348's hot start problem was the flywheel, 100% cured by repacking several years ago.

 

Yes Scott, I repacked my flywheel by myself, before I had the benefit of advice from fellow FChatters - had to learn to do it on my own.

It's easy to remove the clutch housing (including the flywheel) from the car with simple hand tools. You need a special tool to remove the ring nut to take the flywheel off the housing, it's torqued on very tight, and the flywheel probably needs to be pressed off in a hydraulic press. It isn't difficult, just something you might need a hand with. Once the flywheel is off, it's pretty simple to open it up, clean it out, and repack it with the special grease. There is NO help at all coming from the Workshop Manual, Ferrari obviously just wants you to spend the $3000 or so on a new flywheel, when you can repack it for less than $100.