Over Fill Transmission?
#1
Over Fill Transmission?
So, I recently bought a new-to-me FD with 15x,xxx miles.
I had a shop swap out my fluids, and the mechanic reported that he filled the transmission past the recommended(4qts?) capacity to 6qts.
Just wondering if that should concern me. I know overfilling the oil is a no-no. Rudimentary searching indicated this would not be a problem, but I wanted to check with the peanut gallery.
Thanks in Advance,
Barban
PS: I'll put up some pics of my progress with this basket case as I actually make some.
I had a shop swap out my fluids, and the mechanic reported that he filled the transmission past the recommended(4qts?) capacity to 6qts.
Just wondering if that should concern me. I know overfilling the oil is a no-no. Rudimentary searching indicated this would not be a problem, but I wanted to check with the peanut gallery.
Thanks in Advance,
Barban
PS: I'll put up some pics of my progress with this basket case as I actually make some.
#3
Manual.
Yes, not confidence inspiring. I'm looking for a good mechanic in south bay area california, if anyone wants to recommend one/some.
I'd like to do most of the work myself, but I don't have a great space/tool setup at the moment. So, I'll be outsourcing a fair amount of work that I either can't or wouldn't like to perform myself.
Yes, not confidence inspiring. I'm looking for a good mechanic in south bay area california, if anyone wants to recommend one/some.
I'd like to do most of the work myself, but I don't have a great space/tool setup at the moment. So, I'll be outsourcing a fair amount of work that I either can't or wouldn't like to perform myself.
#6
Radioactive Rotary Rocket
Join Date: Aug 2005
Location: Minneapolis, MN
Posts: 1,061
Likes: 0
Received 0 Likes
on
0 Posts
When the transmission is over filled the oil foams. That puts air bubbles into the oil so instead of oil between your gears you just get air. It can destroy a transmission. There is no benefit to running it over full. The transmission shouldn't drink oil like your engine so the "top it off" logic doesn't apply here. I really don't know what that mechanic was thinking...
#7
Rotary Enthusiast
This dosent make sense to me....
Pretty hard to fill it above the fill hole isnt it?
Unless they put the oil in while the tranny was not on the car, which dosent make sense either as they would need the drive shaft in to stop the gearbox leaking its oil.
And we know you cant put the tranny in with the driveshaft still in it, lol
me thinks its not over filled...
either way just loosen the fill plug and let the oil drain out untill it stops at the fill hole level..
Pretty hard to fill it above the fill hole isnt it?
Unless they put the oil in while the tranny was not on the car, which dosent make sense either as they would need the drive shaft in to stop the gearbox leaking its oil.
And we know you cant put the tranny in with the driveshaft still in it, lol
me thinks its not over filled...
either way just loosen the fill plug and let the oil drain out untill it stops at the fill hole level..
Trending Topics
#8
4 quarts doesn't reach the fill hole, apparently. Because, they got 6 in there somehow. It is possible they started filling it with the drain open to force the old fluid out, but I'm really reaching here. I can't for the life of me understand why a professional mechanic would completely disregard the recommended procedure. Now I have to wonder if they fucked up my oil and/or differential, too.
#10
Radioactive Rotary Rocket
Join Date: Aug 2005
Location: Minneapolis, MN
Posts: 1,061
Likes: 0
Received 0 Likes
on
0 Posts
It's easy to overfill. When you fill it you have to either use a pump, or a tube and funnel and pour it in from above. If you put a big tube in the fill hole it's easy to overfill it and have nothing leak out until you remove the tube. Now at this point, that should be a sign that it's overfilled. But I guess you could just stick the drain plug back in and call it good. I haven't the slightest clue why someone would do something like that unless it was their first time filling a manual transmission. But I've seen some crazy stuff including pouring 4 qts down the timing check hole onto the clutch.
#14
Senior Member
iTrader: (10)
Manual.
Yes, not confidence inspiring. I'm looking for a good mechanic in south bay area california, if anyone wants to recommend one/some.
I'd like to do most of the work myself, but I don't have a great space/tool setup at the moment. So, I'll be outsourcing a fair amount of work that I either can't or wouldn't like to perform myself.
Yes, not confidence inspiring. I'm looking for a good mechanic in south bay area california, if anyone wants to recommend one/some.
I'd like to do most of the work myself, but I don't have a great space/tool setup at the moment. So, I'll be outsourcing a fair amount of work that I either can't or wouldn't like to perform myself.
#15
Full Member
iTrader: (6)
4 quarts doesn't reach the fill hole, apparently. Because, they got 6 in there somehow. It is possible they started filling it with the drain open to force the old fluid out, but I'm really reaching here. I can't for the life of me understand why a professional mechanic would completely disregard the recommended procedure. Now I have to wonder if they fucked up my oil and/or differential, too.
And is it definite that anything more than 2.6 quarts of oil will cause damage to the transmission? (Aaron Cake's websites mentions the risk of the gearbox exploding, as far-fetched as it sounds).
#16
Urban Combat Vet
iTrader: (16)
One fill (A), two drains (B) and (C). Not sure what’s going on in post #13. But this is how my transmission looks. Leave the socket head bolt and hex-head bolt in the picture alone.
I’m not sure. There would be power loss, maybe inordinate pressure on seals that would cause leaks, foaming.
Last edited by Sgtblue; 10-04-18 at 06:54 AM.
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM