E type won't rev past 4K
#1
E type won't rev past 4K
I have a customer car that I overhauled the HD8 carbs. Not my first set. I can not find a vacuum leak. Distributor new Pertronics. Had problem before and after new dist. Adding starter fluid while misfiring does not help. Timing 7*BTDC. To my knowledge the problem started after rebuild. Sometimes it will have flame blow out of the carbs while this happens. Runs good until full throttle. Fuel flow through filter looked good when I emptied the bowl. I'm stumped!!
#2
Petronix can be great, BUT do you have the petronix wires to match?
Old copper wire will send surges to the unit and eventually burn it out.
Also are the bowl levels set.....many over look this and trouble begins.
Good luck other than a bad coil, the petronix can work but you have to tweek.
gtjoey134
Old copper wire will send surges to the unit and eventually burn it out.
Also are the bowl levels set.....many over look this and trouble begins.
Good luck other than a bad coil, the petronix can work but you have to tweek.
gtjoey134
#5
#7
The air filters are not installed (OEM) at the moment. When I'm done with front crank seal I'll get back to it. I'm going to change the plug wires before I do anything else. The rpm range will vary sometimes. And it will run ok sometimes to 5K. Just not under load. (boy racer filters) Funny.
Trending Topics
#9
#11
#12
Join Date: Jan 2012
Location: Newport Beach, California
Posts: 5,574
Received 2,578 Likes
on
1,783 Posts
#14
#16
1968 XKE: I had a fuel filter in the bowl on bulkhead that look OK, but would only flow enough fuel for cruise on hot California day, when I starter up long grade engine would loose power. Stop several times to investigate, found nothing. After 5 minutes started off again and was fine for a while at moderate speeds only. On way back I took out fuel filter as pure guess, as I had no tools with me. Sure enough engine performed normally up the grade going home. Installed new filter and was OK.
Curious if you Carburetor overhaul included new piston spring, new jet and new needle? If piston is binding and not going all the way up, you will have lean mixture at high RPM ???
Curious if you Carburetor overhaul included new piston spring, new jet and new needle? If piston is binding and not going all the way up, you will have lean mixture at high RPM ???
#17
Finally!! After valve adjustment I replaced the jets again. Car runs great now. Suspect that after valve adjust I hadn't refitted the complete air filter assy. and that contributed. I don't know for sure why BUT at this point it's not important. Now it can go home when the rain stops. Thanks for your help.
Thread
Thread Starter
Forum
Replies
Last Post
Jag-Ed
S-Type / S type R Supercharged V8 ( X200 )
13
03-04-2017 10:50 AM
82WingNut
XJ XJ6 / XJR6 ( X300 )
5
10-21-2016 05:57 PM
Guitarman
S-Type / S type R Supercharged V8 ( X200 )
3
04-15-2008 06:25 AM
SilverSType
S-Type / S type R Supercharged V8 ( X200 )
4
01-02-2008 12:17 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)