cant go fast for long....help!?, drives around town all day, but not on highway! |
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cant go fast for long....help!?, drives around town all day, but not on highway! |
rbmorrisiii |
Aug 2 2008, 03:13 PM
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#1
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Newbie Group: Members Posts: 11 Joined: 21-July 08 From: OAKLAND, CA Member No.: 9,333 Region Association: Pacific Northwest |
Ok, so i got this car ('73 1.7L) about 2 months ago. single carb - yes i know this isnt the best fuel intake, but i am going to try to make it work. I tried to drive it home - about 90 miles, but it only went about 15 miles before it slowly crapped out. losing speed unitl i had to pull over. it would start again and drive, but couldnt go fast for long.
so, I: changed fuel filter, spark plugs, oil, cleaned oil screen, pulled gas tank and ran all new fuel hoses and clamps (found a kinked line which i thought was the problem - also found the vent in the gas tank to be smashed, so i re-opened that and ran a new hose to underneath the car) the lines looked fine running through the car - and when i blew them out they seemed to be free of any clogs etc. I reconnected everything, and started her up today. same problem. she ran a little better and could run all day around town, but took her on the highway and she would only stay in 5th gear for like 20 seconds then started tanking in speed - down-shifted to 4th.....3rd...then pulled off the highway...noticed some smoke in the back so i pulled over to let her rest. the smoke was coming from the HE's - both sides on the "opening" closer to the muffler. the PO had screwed in wood screws into the gap i'm assuming to keep them from rattling, and that gap is where the smoke was flying out of. after a 15 minute rest i started up and drove for another 15 minutes with no major problems. Why wont she go on the highway! I'm stumped! I'm new to the mechanical arena so overexplain things if you think you need to. whats my next step? someone told me the timing may be messed up, 'cause when you switch to carbs you to need to adjust?!?! help! Thanks for all the help in advance, so glad to finally join the 914 world! ill have pics of my bag of bolts soon! -R.B. |
Eric_Shea |
Aug 2 2008, 11:07 PM
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#2
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PMB Performance Group: Admin Posts: 19,278 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains |
Fuel filter?
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rbmorrisiii |
Aug 3 2008, 03:03 PM
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#3
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Newbie Group: Members Posts: 11 Joined: 21-July 08 From: OAKLAND, CA Member No.: 9,333 Region Association: Pacific Northwest |
Yeah, sorry no head temp gauge (should i get one? what do they cost? easy to install?)
No compression test. No valve adjustment. My neighbor is supposed to run me through timing adjustment soon ( I am a serious novice with this type of stuff). I've read about how to do a valve adjustment, but seems like something i want somebody to show me the first time i do it - anyone in the bay area? And whats up with compression tests? - something i need to do at a shop? Fuel filter was replaced first thing and double checked it before yesterday. Exhaust leaks are pictured. Smoke was blue-ish and poured out for some 5-10 minutes after stopping. So i guess my next step is to examine the fan and making sure that fuel is making it to the carb (eliminating fuel pump/fuel pressure regulator problems). What are you saying is "significant fuel flow"? like what rate would be good with the pressure regulator set to 3 psi? I'll probably adjust the float level as well - I'm assuming there is some kind of "how to" on line. Amazing support guys! Heres a question for you....Everyone I ask offers different and sometimes blatently contradictory advice - who the hell do I listen too? Thanks again! -R.B. Attached thumbnail(s) |
VaccaRabite |
Aug 3 2008, 03:24 PM
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#4
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En Garde! Group: Admin Posts: 13,465 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
eep, I was just wrong!
Sort of. My premise was right I bet. You have oil leaking into the heat exchangers somewhere. the blue smoke is that oil burning off. I bet if you turn on the heater in the cabin, it stinks of burned oil. Zach |
rbmorrisiii |
Aug 3 2008, 03:42 PM
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#5
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Newbie Group: Members Posts: 11 Joined: 21-July 08 From: OAKLAND, CA Member No.: 9,333 Region Association: Pacific Northwest |
My heater isnt connected to the cabin right now. Hoses just stop (torn) as they enter into the fuel tank bay.
And I guess this is a good time to mention that the heater air hose on the driverside (coming from the blower) is ripped - what does this affect? AND what does this leak in the HE's mean in the grand scheme of things? Focus on this first? Any best way for determining where the leak comes from? Thanks, R.B. And - NO thats not black paint... |
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