Help...my 914 is bucking and stalling |
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Help...my 914 is bucking and stalling |
adammtb |
Sep 24 2005, 07:52 PM
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#1
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Member Group: Members Posts: 68 Joined: 24-September 05 From: Asheville, NC Member No.: 4,856 |
Hello there,
I just bought a 72 914 w/ a 1.8 according to the seller. I drove it about 5 hours home no problem. However, when I drive it now, I can run for about 30 minutes then it starts to lose power and buck. The car stalls if I take my foot off the gas. I have to pull over, shut it down for a few minutes and then i can drive off. It then does this every 5-15 minutes. I also think I added to much oil, how are you supposed to check the level, I heard the engine needs to be running? Now there is oil all throughout the engine bay. Did I blow oil out throuhg the air filters, and if so can I take them off to drive into town, about 12 miles. Please help I would love to fix this tomorrow. Thanks, Scooter |
bd1308 |
Sep 24 2005, 07:56 PM
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#2
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
the 72 has a oil bath filter....supposed to be like that....
there shoudl be a dipstick for checking the oil level...the engine should be warm..... bucking/stalling....if you know which FI system you have please tell us, it helps to narrow things down if D-jet check the CHT, located by the #3 cylinder. now oil all over the engine bay is something that i dont have an answer for? hoses disconnected somewhere? Welcome! |
goose2 |
Sep 24 2005, 09:19 PM
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#3
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Senior Member Group: Members Posts: 976 Joined: 30-March 05 From: Eugene, Oregon Member No.: 3,847 Region Association: Pacific Northwest |
Britt is right, there's a dipstick...check with motor not running (only sixes get checked running). The oil mess sounds like it's overfilled...if not you may have a leak or a more serious problem. The intermittant bucking and stalling may be vapor lock (do a search to learn more about it) or it may be that the plugs are fouling because it's overfilled. There are a couple things with the fuel enjection that could cause it too, but I'd start with the oil check and then see what the plugs look like. Welcome to our world (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)
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redshift |
Sep 24 2005, 09:37 PM
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#4
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
Carbs? You said air filters...
M |
adammtb |
Sep 24 2005, 09:57 PM
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#5
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Member Group: Members Posts: 68 Joined: 24-September 05 From: Asheville, NC Member No.: 4,856 |
Definatley carbs, dual carbs...when I said air filters I mean the things that sit on top of the carbs...what are those called? Thanks for all the advice and I will let y'all know how it turns out tomorrow.
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bd1308 |
Sep 24 2005, 10:33 PM
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#6
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
you're new here....you'll soon learn that I actually know nothing...
so ignore what i said...the FI models came with a oil bath filter, but i'm more partial to the laterr tstyle. |
redshift |
Sep 24 2005, 10:50 PM
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#7
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
Yes then, the oil level can have a bad outcome, up the pukers..
You should use about 3.75 quarts, and that is over slightly. Do you have ports in your heads? There is a breather setup, that you may lack. M |
Type 4 Unleashed |
Sep 25 2005, 02:16 AM
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#8
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CREATIVE TYPE lV ENGINEERING Group: Retired Members Posts: 787 Joined: 20-June 04 From: Aliso Viejo, ca Member No.: 2,231 Region Association: None |
New guys, arn't allowed to ask questions, unless they post pictures (IMG:http://www.914world.com/bbs2/html/emoticons/happy11.gif) Unwritten and Unheard of Rule (IMG:http://www.914world.com/bbs2/html/emoticons/happy11.gif)
(IMG:http://www.914world.com/bbs2/html/emoticons/thisthreadisworthlesswithoutpics.gif) |
bd1308 |
Sep 25 2005, 10:10 AM
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#9
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
yep. miles is right. if your heads have this port in the heads and nothing is attached, you'll have a fine mist of oil all over your engine compartment. ask me how i know.
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Joe Bob |
Sep 25 2005, 01:02 PM
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#10
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Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None |
Sounds like a fuel problem. Could be a filter or the fuel pump is going bad.
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rhodyguy |
Sep 25 2005, 02:58 PM
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#11
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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 |
check oil when cold or after it has been sitting for a few minutes if warm. locate and check fuel filter, just as easy to match it and just replace it if age is unknown. the oil fill tower, conical shaped item on the front/top of the engine, should have a hose on it. where does the other end of the hose attach?
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adammtb |
Sep 25 2005, 07:40 PM
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#12
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Member Group: Members Posts: 68 Joined: 24-September 05 From: Asheville, NC Member No.: 4,856 |
Ok so I found out more info...dual weber carbs, not sure which ones. It seems that the fuel pump is right next to the gas tank, I'm assuming that this is not stock. Definatley a 1.8. Oil problem solved...just had to much. So, how hot does it need to be for the fuel to atomize. If the engine is not cooling properly could the carbs get hot enough to atomize the fuel. Also, could a fuel line get hot enought to do the same. I had the same problem today...ran it for about an hour until it started, and then cooled off for periods of 1-5 minutes bought me about that same amount of time running until it started dying again. Here are some photos as well.
Attached thumbnail(s) |
adammtb |
Sep 25 2005, 07:42 PM
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#13
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Member Group: Members Posts: 68 Joined: 24-September 05 From: Asheville, NC Member No.: 4,856 |
Here is a photo of the engine...
Attached thumbnail(s) |
Joe Bob |
Sep 25 2005, 07:45 PM
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#14
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Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None |
Those are single barrel carbs.....typically you would use 40 or 44 Weber two barrel carbs.
What you have is a single on a short manifold....I have heard that short manifolds will heat up, transfer engine heat and cause problems in the carb bowl by boiling the gas......might want to look into "phenolithic"....might not be spelled right ....spacers that fit under the manifolds.... |
redshift |
Sep 25 2005, 07:58 PM
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#15
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
phenolic
M |
Aaron Cox |
Sep 25 2005, 08:03 PM
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#16
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
weber ICT's I think
phenolic or heat isolating gaskets... |
rhodyguy |
Sep 26 2005, 07:46 AM
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#17
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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 |
that open fitting on the oil fill tower just pumps crap all over the engine compartment. the cheap way to solve that issue is to drill a hole in one of the air filter tops, put in a fitting that fits the proper sized vaccum line, and let the carb draw off the fumes. where does the fuel pump sit in relation to the outlet on the bottom of the fuel tank? higher, lower, about the same. show a picture of the location and type of pump.
k |
adammtb |
Sep 26 2005, 08:16 AM
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#18
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Member Group: Members Posts: 68 Joined: 24-September 05 From: Asheville, NC Member No.: 4,856 |
Here is the front trunk compartment, note the fuel pump next to the gas tank (upper left of the photo) The pump is level with the top of the tank. It did not feel overly hot to the touch, perhaps justa bit warm. Not sure what type it is, but looks more like a 74,75 pump than a 72 pump?
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OMB_Godfather |
Sep 26 2005, 11:42 PM
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#19
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Newbie Group: Members Posts: 49 Joined: 19-September 05 From: Bakersfield, CA Member No.: 4,823 |
Also about the bucking and stalling you might try checking the dwell/point gap in the distributor. i had a problem with that where the points were almost always closed but the damn thing still ran and bucked.
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TravisNeff |
Sep 27 2005, 01:43 AM
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#20
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914 Guru Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region |
Fuel or ignition. Pop the tops off the carbs and I betcha you'll find all sorts of rust chunks in there.
Every good diagnosis is to make sure every part that you can control is up to snuff before you start easter egging out parts. Adjust the valves, check dwell, timing - then go after the carbs/fuel system. It is almost always the basics which gets you. |
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