I recently got a request to diagnose a problem a guy was having shifting his manual transmission, on his 1967 GTO,
(similar to this but his car is light metallic blue)
the car was put up on jack stands and I carefully checked and adjusted the linkage , but when I checked
the transmission,by removing the LOWER lube plug and stuck my finger in it came out dry,
I strongly suggested we buy and fill the transmission with fresh lube.
(he had not driven the car for about 6 years)
until trying to drive it around his block a couple days ago.
we filled the upper plug until it leaked out,
I don,t know what if any damage to the gears or internals has been seen yet,
as adding the lube improved the function very noticeably,and the car still driving means the owner has chosen to not check it out.
but just the idea that he was running the transmission with very low lube levels indicates that wear potential.
I suggested we check further as it looked like the rear seal around the drive shaft yoke might be leaking.. but the cars owner declined... so I strongly suggested he verify the lube level in a week to see it it was still leaking and loosing lube...hopefully he will decide to correct this, issue then, as it should be rather obvious at that point that the seal's needs to be replaced.
most people will check an automatic transmission fluid level if there's a dip stick to accurately measure the fluid level, but getting under the car is required on many manual transmissions and that generally means only the more dedicated hot rodder's will check a ,manual transmission.
the fact the transmission gear lube was low in a car thats 50 years old, and rarely checked, is hardly rare.
I've seen this happen rather often in the c3- c4 and c5 corvettes using manual transmissions or auxiliary over drive transmission units
https://www.summitracing.com/parts/red-50304
yes youll need a manual fluid pump to get fluid into the transmission as you can,t get access to pour the trans lube with the trans fluid containers, along side the transmission in the car
https://www.harborfreight.com/multi-use-transfer-pump-63144.html
https://oldcarmemories.com/muncie-borg-warner-t-10-and-super-t-10-4-speed-transmission-oil-change/
http://www.superchevy.com/how-to/vemp-0511-shifting-gears/
http://garage.grumpysperformance.com/index.php?threads/4-3-trans-related.9812/
http://garage.grumpysperformance.com/index.php?threads/replacing-trans-fluid.10749/#post-46948
http://garage.grumpysperformance.co...l-cooler-increases-durability.176/#post-12335
http://garage.grumpysperformance.co...thetic-transmission-oil-fluids.748/#post-2924
http://garage.grumpysperformance.co...oil-and-use-the-correct-lubes.1279/#post-2740
http://garage.grumpysperformance.co...s-synthetic-oil-and-trans-lube.718/#post-1010
http://garage.grumpysperformance.com/index.php?threads/muncie-spline-count.11255/#post-70343
http://garage.grumpysperformance.com/index.php?threads/muncie-transmission-info.396/#post-32518
http://garage.grumpysperformance.com/index.php?threads/adjusting-muncie-shifter-linkage.1674/
http://garage.grumpysperformance.co...y-to-adjust-my-hurst-four-speed-shifter.2936/
(similar to this but his car is light metallic blue)
the car was put up on jack stands and I carefully checked and adjusted the linkage , but when I checked
the transmission,by removing the LOWER lube plug and stuck my finger in it came out dry,
I strongly suggested we buy and fill the transmission with fresh lube.
(he had not driven the car for about 6 years)
until trying to drive it around his block a couple days ago.
we filled the upper plug until it leaked out,
I don,t know what if any damage to the gears or internals has been seen yet,
as adding the lube improved the function very noticeably,and the car still driving means the owner has chosen to not check it out.
but just the idea that he was running the transmission with very low lube levels indicates that wear potential.
I suggested we check further as it looked like the rear seal around the drive shaft yoke might be leaking.. but the cars owner declined... so I strongly suggested he verify the lube level in a week to see it it was still leaking and loosing lube...hopefully he will decide to correct this, issue then, as it should be rather obvious at that point that the seal's needs to be replaced.
most people will check an automatic transmission fluid level if there's a dip stick to accurately measure the fluid level, but getting under the car is required on many manual transmissions and that generally means only the more dedicated hot rodder's will check a ,manual transmission.
the fact the transmission gear lube was low in a car thats 50 years old, and rarely checked, is hardly rare.
I've seen this happen rather often in the c3- c4 and c5 corvettes using manual transmissions or auxiliary over drive transmission units
https://www.summitracing.com/parts/red-50304
yes youll need a manual fluid pump to get fluid into the transmission as you can,t get access to pour the trans lube with the trans fluid containers, along side the transmission in the car
https://www.harborfreight.com/multi-use-transfer-pump-63144.html
https://oldcarmemories.com/muncie-borg-warner-t-10-and-super-t-10-4-speed-transmission-oil-change/
http://www.superchevy.com/how-to/vemp-0511-shifting-gears/
http://garage.grumpysperformance.com/index.php?threads/4-3-trans-related.9812/
http://garage.grumpysperformance.com/index.php?threads/replacing-trans-fluid.10749/#post-46948
http://garage.grumpysperformance.co...l-cooler-increases-durability.176/#post-12335
http://garage.grumpysperformance.co...thetic-transmission-oil-fluids.748/#post-2924
http://garage.grumpysperformance.co...oil-and-use-the-correct-lubes.1279/#post-2740
http://garage.grumpysperformance.co...s-synthetic-oil-and-trans-lube.718/#post-1010
http://garage.grumpysperformance.com/index.php?threads/muncie-spline-count.11255/#post-70343
http://garage.grumpysperformance.com/index.php?threads/muncie-transmission-info.396/#post-32518
http://garage.grumpysperformance.com/index.php?threads/adjusting-muncie-shifter-linkage.1674/
http://garage.grumpysperformance.co...y-to-adjust-my-hurst-four-speed-shifter.2936/
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