 Locked Up!, What might it be? |
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| 74914LE |
 Jun 8 2013, 04:21 PM
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#1
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Member  Group: Members Posts: 136 Joined: 6-April 04 From: Fort Worth, TX Member No.: 1,895  |
Just finished getting a 72 1.7ltr. ready to start up after sitting for 29 years. Went over everything in the fuel, vacuum, and ignition systems. It turned over just fine without spark hooked up to it. Now for the moment of truth. Made sure I had fuel pressure and attempted to start it.
After about 3 tries, it fired up and started running!!!! After about 20 seconds, a rattling sound started, then got worse. I immediately shut it off. Then tried to turn it over again, and it would not turn over. I then got it on jack stands and blocked one wheel to put it in gear and see if I could spin the motor by hand with transmission in 5th gear. The wheel will turn about 1/3 a turn in either direction and it locks. Before I drop the motor and pull it apart to check for a dropped valve or worse, though I would see if anyone wanted to weigh in on what this might be....ideas? Thanks in advance! |
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| Dave_Darling |
Jun 8 2013, 05:49 PM
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#2
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914 Idiot Group: Members Posts: 15,209 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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Pop the valve covers off first. Also dig out a good light and a mirror and take a look at the fan. See if anything is amiss or looks jammed.
Also remove the spark plugs and see if the engine turns over. (NOTE: Have an extinguisher handy, because if it is hydro-locked, you will have four small fountains of gasoline!) There is an odd FI failure mode where the injectors turn on but never turn off. That can hydro-lock the motor. --DD |
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Posts in this topic
74914LE Locked Up! Jun 8 2013, 04:21 PM
eyesright I had my 93K mile '76 2.0 DJet for a year or s... Jun 8 2013, 05:44 PM 74914LE OK, pulled the plugs, and they were not flooded. ... Jun 8 2013, 07:20 PM The Cabinetmaker Like suggested, pull the valve covers and check fo... Jun 8 2013, 07:57 PM dfelz Like dave said, take the valve covers off to see i... Jun 8 2013, 07:58 PM 74914LE #2 INTAKE was very loose....looks like a valve sea... Jun 9 2013, 03:25 PM DBCooper I fixed one where a chunk went forward and wedged ... Jun 9 2013, 04:05 PM The Cabinetmaker Pull the heads, get them to the machinist,
Put em ... Jun 9 2013, 04:14 PM 74914LE On close inspection, this is what I found in the ... Jun 9 2013, 09:26 PM
JamesM When you turned if over before starting it up was ... Jun 9 2013, 11:11 PM DBCooper Wow, never seen that. I'm REAL curious to kno... Jun 9 2013, 11:05 PM 74914LE Pulled the head, and it was the valves that were s... Jun 10 2013, 07:41 PM jcd914 Check the condition of the cam lobe and lifter.
I ... Jun 10 2013, 09:57 PM |
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