 Help...my 914 is bucking and stalling |
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| bd1308 |
 Sep 27 2005, 07:52 AM
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#21
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Sir Post-a-lot  Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501  |
same here...everything worked as it should, except for this small stalling right at 1000RPM...drove me nuts.... anyway, point block wore down because I forgot to lube the cam before taking it to the p-man to get worked on, and he forgot to check.... b if there's any porblem first thing to do is just look at the points.... |
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| rhodyguy |
Sep 27 2005, 08:05 AM
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#22
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,098 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
my take on the fuel pump placement, and i may be incorrect. that location, way up high, doesn't look right. plus, it's hard to tell if it's a facet or a rotary. which ever, i think you should find a new location. consider the lower firewall, as in the picture, filter up stream of the pump.
k Attached image(s) 
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| bd1308 |
Sep 27 2005, 08:24 AM
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#23
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
oh and about that pump.....
the early FI pumps were gravity fed...IE they push instead of pull...... so if you have a early pump WAAAAY up there, you got a problem. I would relocate it somewhere near stock position..... b |
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| rhodyguy |
Sep 27 2005, 08:29 AM
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#24
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,098 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
you have no need for a f.i. pump, with all that high pressure, even with a fuel pressure regulator, in a carbed car.
k |
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| bd1308 |
Sep 27 2005, 08:34 AM
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#25
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
it just looked like he had a FI pump up there....
aren't facets gravity fed as well? |
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| rhodyguy |
Sep 27 2005, 08:36 AM
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#26
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,098 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
from the picture, i can't tell exactly what style is in there britt. just a heads up.
k |
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| bd1308 |
Sep 27 2005, 08:45 AM
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#27
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
hey man, could we get closer fuel pump pictures?
your right rhodyguy, if its a carbed car, a FI pump has no business in there....i have a feeling that's part of the problem. b |
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| tdgray |
Sep 27 2005, 08:50 AM
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#28
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Thank God Nemo is not here to see this Group: Members Posts: 9,705 Joined: 5-August 03 From: Akron, OH Member No.: 984 Region Association: None |
I think you guys are hunting Elephants with a pop gun.
First things first. Check the coil. Sounds exactly like an overheating coil. |
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| Bartlett 914 |
Sep 27 2005, 10:03 AM
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#29
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Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
I'm not familiar with the different gas tank caps. Maybe the tank is not vented properly. Try loosening the cap. Possibly you are drawing a vacuum in the tank starving the fuel pump.
Mark |
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| adammtb |
Sep 27 2005, 12:47 PM
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#30
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Member Group: Members Posts: 68 Joined: 24-September 05 From: Asheville, NC Member No.: 4,856 |
Hey guys....sorry no pics for a few days....the car is "hiding." My father is coming soon and seeing as the car is a gift for him it would not be good to spoil the suprise.
The pump looks a lot like the pump in the photo that rhodyguy posted...it is long and cylindrical and the fuel enters one end and then out the other. If anyone knows the Auto Atlanta catolog it looks the the pump in the 75/76 photo versus the pump in the 70-74 photo. Keep the thoughts coming...it's awesome! |
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| Toast |
Sep 27 2005, 01:04 PM
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#31
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Not bad for carrying sway bars. Group: Members Posts: 3,377 Joined: 20-January 04 From: Las Vegas Member No.: 1,580 Region Association: Southwest Region |
well, now doesn't this situation sound familar! (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif)
Clean or change the fuel filter in the rear at least. Also, take it for a drive, and when it starts bucking, try moving the key around in a square motion. If it fires back up and keeps running, then your ignition needs changed. The plastic inside the ignition could be cracked or broke and cause your car to "shut off". Oh, and dont go driving through a steep canyon while you are having this problem. (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif) |
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| adammtb |
Sep 27 2005, 02:43 PM
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#32
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Member Group: Members Posts: 68 Joined: 24-September 05 From: Asheville, NC Member No.: 4,856 |
You know...the other day, when it started up again (well it happens everytime i drive) I pumped the gas vigourously and that seemed to buy me another 30 seconds or minute or so of really rough running and not dying...does this beta help the diagnosis?
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| Toast |
Sep 27 2005, 04:27 PM
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#33
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Not bad for carrying sway bars. Group: Members Posts: 3,377 Joined: 20-January 04 From: Las Vegas Member No.: 1,580 Region Association: Southwest Region |
Yes, I am having that same problem now! When I find out what it is, I'll let ya know. But seriously, try that ignition thing and clean the fuel filter. |
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| adammtb |
Oct 1 2005, 10:58 AM
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#34
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Member Group: Members Posts: 68 Joined: 24-September 05 From: Asheville, NC Member No.: 4,856 |
What do y'all think of Auto Atlanta...gonna take her down soon for a check-up....here's another pic
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| adammtb |
Oct 1 2005, 10:59 AM
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#35
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Member Group: Members Posts: 68 Joined: 24-September 05 From: Asheville, NC Member No.: 4,856 |
sorry here's that pic.....
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| rhodyguy |
Oct 1 2005, 11:38 AM
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#36
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,098 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
ok. if there is a second metal canister (like the one in my picture) it would be the fp regulator. general info. this type of pump is a good "pusher", and a bad "puller". mounted high as in your picture, the pump is forced to "pull" the fuel uphill. note in my picture the pump actually rests below where the fuel outlet is located. gravity does the initial work, supplying the fuel to the pump, and the pump "pushes" it a short distance uphill. filter upstream of the pump (before), and i use a stock hp style. if you should relocate the pump, check out andy's powering the pump thread in the classic thread section. if you want to try a new coil, a bosch blue can be had for roughly $30. perhaps worth a try. btw, when you buy a cb pump, the instructions stongly advise against mounting the pump in a trunk or enclosed space. prob to avoid accumulation of vapors and the accompaning explosion.
k |
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| mikelsr |
Oct 1 2005, 12:48 PM
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#37
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Senior Member Group: Members Posts: 657 Joined: 2-January 05 From: Mahomet, IL Member No.: 3,390 Region Association: Southwest Region |
I had this problem on my teener and found that the PO had connected ALL of the fuel system vents together. It would run for a while and then buck and die. If I took the gas cap off (just loosening it didn't help) I would hear it break vacumn. Mike |
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