2056 spark plug gap, 40 Dell's, Jacobs energy box, Bosch blue coil, C30 cam,Bosch SVDA Dizzy |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
2056 spark plug gap, 40 Dell's, Jacobs energy box, Bosch blue coil, C30 cam,Bosch SVDA Dizzy |
914rat |
Jun 22 2020, 12:22 PM
Post
#1
|
Member Group: Members Posts: 279 Joined: 3-July 06 From: Maryland Member No.: 6,362 |
Trying to tune my 914 that has been asleep in my climate controlled garage for 10 years. runs good in the upper rpm range but shitty at lower range. What gap should I use on NGK BR6ES plugs? 40 Dell's, Jacobs energy box, Bosch blue coil, C30 cam,Bosch SVDA Dizzy?
|
porschetub |
Jun 24 2020, 06:20 PM
Post
#2
|
Advanced Member Group: Members Posts: 4,703 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
What is your fuel pressure ? because you have fouled plugs I can only assume you have fuel bowl overspill,take one air cleaner off and see if the carb throat is wet when idling.
Did you clean out the pump nozzles ? and check float bowl heights ? the nozzles block very easily and cause raw fuel to drip out instead of a fine atomized spray or if totally blocked not work @ all and equal backfires. Rebuilding carbs is a difficult job to do right,everything has to be spot on...period. Don't forget to make sure your ignition system is 100%,NEVER try to tune carbs unless you have checked plug leads for example,if they look old replace them as they are cheap enough same applies to the rest of the system. Have you checked the timing ?,good luck. |
914rat |
Jun 25 2020, 04:43 PM
Post
#3
|
Member Group: Members Posts: 279 Joined: 3-July 06 From: Maryland Member No.: 6,362 |
What is your fuel pressure ? because you have fouled plugs I can only assume you have fuel bowl overspill,take one air cleaner off and see if the carb throat is wet when idling. Did you clean out the pump nozzles ? and check float bowl heights ? the nozzles block very easily and cause raw fuel to drip out instead of a fine atomized spray or if totally blocked not work @ all and equal backfires. Rebuilding carbs is a difficult job to do right,everything has to be spot on...period. Don't forget to make sure your ignition system is 100%,NEVER try to tune carbs unless you have checked plug leads for example,if they look old replace them as they are cheap enough same applies to the rest of the system. Have you checked the timing ?,good luck. I have a fuel pressure regulator and a guage. The pressure is fine and it is in time. I ran the car out of gas and suspect some trash got by the fuel filter or got left behind when the carbs were cleaned. I am going to drive the car and work on all these things to get that last little bit of tune resolved. It is very close now. Thanks for the input. |
Lo-Fi Version | Time is now: 1st June 2024 - 01:48 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |