Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

> Dellorto problem. disaster averted, garage reeks of fuel
rhodyguy
post Jun 9 2013, 04:25 PM
Post #1


Chimp Sanctuary NW. Check it out.
***************

Group: Members
Posts: 22,093
Joined: 2-March 03
From: Orion's Bell. The BELL!
Member No.: 378
Region Association: Galt's Gulch



all set, ready for fire up, energize the pump (didn't spin the engine) and the pump doesn't quiet down (cb carb pump) as the bowls fill as it did with the webers. i look over and there's a thin fountain the coming up and fuel welling thru the square in between the main stacks on the dr side carb. puddles on top of both of the throttle plates.

the pass side has the duel banjo fitting. fuel supply line connects to one fitting and the other fitting is supposed to supply the dr side eliminating the need for a 'T". does it make any dif which fitting gets the pump supply and which one connects to the dr side carb? top fitting as opposed to bottom. the dellorto book mentions the dual banjo but doesn't specify if it makes a dif where the lines are/how hooked up.

i had just changed out the oil so i know the 3 1/2 quarts of BP will get dumped. any ideas?

k
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
ThePaintedMan
post Jun 9 2013, 07:55 PM
Post #2


Advanced Member
****

Group: Members
Posts: 3,886
Joined: 6-September 11
From: St. Petersburg, FL
Member No.: 13,527
Region Association: South East States



If it was completely hydrolocked, it wouldn't have started anyway (at least I don't think). Back in high school I had an 84 Thunderbird which came with TBI that I converted to a Holley carb. Of course this is before I knew that carbs had to have a LOW pressure pump... and that the car would automatically try to keep pressurizing the system even when it was off. I ended up with an engine completely full of gas and after once crank, it wouldn't budge an inch further. (IMG:style_emoticons/default/headbang.gif)

Drained the gas, and oil and after it did it AGAIN, I figured out the problem. (IMG:style_emoticons/default/smile.gif) Long story short, it never ignited (whew).

I have had the same problem as you and John though Kevin. Glad you found the debris, but sometimes they just get stuck. Everytime I reinstall carbs I give momentary 12v power to fuel pump while rapping on the side my Webers, on the steel block-off plate to get the floats to unstick. It's worked so far and IMHO, just worth doing anyways to avoid a big fuel spill.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
rhodyguy   Dellorto problem. disaster averted   Jun 9 2013, 04:25 PM
FourBlades   This happened to me twice when my float valves wou...   Jun 9 2013, 04:38 PM
rhodyguy   i was lucky not to have tried to start it. this wa...   Jun 9 2013, 04:50 PM
DBCooper   does it make any dif which fitting gets the pump s...   Jun 9 2013, 05:19 PM
nathansnathan   I had this same thing happening after about a year...   Jun 9 2013, 05:22 PM
rhodyguy   took the top off. big goober of debris was lying o...   Jun 9 2013, 05:41 PM
rhodyguy   while i'm under there...turn the key to the fi...   Jun 9 2013, 05:50 PM
rhodyguy   plugs out and it turns over nicely. briefly, all i...   Jun 9 2013, 06:04 PM
rhodyguy   a portion of the crap that was in the bowl. was ab...   Jun 9 2013, 06:11 PM
sixnotfour   Carb Stone, It wont pass though..   Jun 9 2013, 06:29 PM
rhodyguy   seriously? if the coil had been hooked up and the ...   Jun 9 2013, 07:04 PM
ThePaintedMan   If it was completely hydrolocked, it wouldn't ...   Jun 9 2013, 07:55 PM
nathansnathan   Hydrolock will definitely happen, cylinder is fill...   Jun 9 2013, 08:09 PM
rhodyguy   nathan, thanks for the tip about dellorto uk. othe...   Jun 9 2013, 08:49 PM
DBCooper   You didn't mention the needle valves. You say...   Jun 10 2013, 06:14 AM
rick 918-S   Kev, You may know this already but when viewing ...   Jun 10 2013, 07:54 AM
rhodyguy   thanks rick. i checked the float/valve action when...   Jun 10 2013, 08:16 AM
FourBlades   The thing which caused my floats to hang up was th...   Jun 10 2013, 09:29 AM


Reply to this topicStart new topic
2 User(s) are reading this topic (2 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 11th June 2024 - 08:07 PM