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Joined: Feb 2012
Posts: 209
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Feb 2012
Posts: 209 |
I posted recently about a issue with my 47 going into 2nd gear hard and got that resolved it looks like. Now when I go into second gear it drops out of gear quickly. Does anyone have any suggestions? Could I be clutch adjustment? I am lost a bit at this point. Also wanted to ask if anyone has heard their vacuum shift make a vacuum leak type noise when the car is idling? And if I lift the shifting lever a bit it stops. This car really giving me a run for my $$ lately.
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
It is obvious that your vacuum shift is misadjusted. Go to your maintenance manual and follow the instructions. It is possible your vacuum system needs to be torn down, cleaned, replace any worn parts and adjusted. The instructions says to use a gauge to make the adjustments, however if you understand how the unit works can make those adjustments by yourself.  
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Feb 2012
Posts: 209
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Feb 2012
Posts: 209 |
I will check the manual out and etc. it seemed strange as I had the transmission out twice this winter and spring and the other two times when we tested the tranny out it did not slip out of second gear.I appreciate the information. What parts would need replacing inside the vacuum shift? And do they still have a conversion kit to eliminate the vacuum shift as some have done? Than You Again
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Joined: Jun 2007
Posts: 1,743 Likes: 11
ChatMaster - 1,500
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ChatMaster - 1,500
Joined: Jun 2007
Posts: 1,743 Likes: 11 |
Just wondering, what did you do to get it to go into second without grinding?
Russell #38868
'48 4 door Fleetline
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Joined: Feb 2012
Posts: 209
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Feb 2012
Posts: 209 |
The guy that rebuilt it said to just go through the gears several times as he thought maybe a synchro had a burr or something on it or that the gears did not mesh perfectly at first. I also double clutch it sometimes. Know anyone whom has a vacuum shift they may want to sell?? I prefer to keep it as original. Not many guys in my area that have good expertise in troubleshooting on these old cars. Glad I am learning more and more.
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