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Registered
Join Date: Dec 2001
Location: JUNEAU,AK.
Posts: 3
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Needs help on my`75 911 engine
Hi guys,
Can you help me solve this problem about my 75 911S engine.I was running @ 60mph and my tach reading was in bet.2,500rpm and suddenly I`ve heard a loud sound underneath as if I hit something and the tach went wild goes up and down and the motor was hesitant to pull.I pulled over and check what happen but found nothing unuseual.I went back home and having a rough ride.I tried to run the motor in neutral idle @1,00rpm and it sounds smooth,but when I rev up to 3,000rpm the tach needle will start to flactuate up 4000+ and all the way down but the sound of the engine still smooth.At first I thought it was a clutch problem,because the pedal clutch is all the way to floor when I do shifting.Your expert comment on this matter will be highly appreciated.Thanks guys. EDDIE |
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01-04-2002, 08:39 PM
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Registered
Join Date: May 2001
Location: Peoples Republic of Long Beach, NY
Posts: 21,140
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No positive idea what happened. Did you check distributor points setting?? The "rough ride home" is caused by engine, yes??
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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01-04-2002, 09:01 PM
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Registered
Join Date: Dec 1999
Location: TX USA
Posts: 9,804
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Eddie,
Tach acting up can be indicative of points/distributor problems ... 1. Check points. 2. Check ground strap from dist. body to point plate ... if it breaks, it can kill the engine, or cause cutting out. 3. Check the tensioning ball bearing and captive spring cup that puts downward pressure on the point plate ... if loose, can cause wide variations in timing and point dwell angle, erratic running, and cutting out.
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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01-04-2002, 09:10 PM
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Registered
Join Date: Dec 2001
Location: JUNEAU,AK.
Posts: 3
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Ronin,
I`m not sure if it was an engine.What I thought was either a transmission or clutch related problem,because the car runs smoothly for awhile and all of a sudden the car will slow down and hesitant followed by a loud metal sound underneath and then back to normal ride again until I reached home. EDDIE |
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01-04-2002, 09:29 PM
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Registered
Join Date: Dec 2001
Location: JUNEAU,AK.
Posts: 3
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Warren,
Thanks for your opinion,I will try to check on what you told me,and possibly change new parts.Thank you guys..... EDDIE |
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01-04-2002, 09:35 PM
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