Purposefully overfilled manual transmission bad idea? - Honda-Tech - Honda Forum Discussion

Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Purposefully overfilled manual transmission bad idea?

Reply

 
 
 
Old 07-13-2018, 06:54 PM
  #1  
Honda-Tech Member
Thread Starter
 
Join Date: Aug 2010
Posts: 78
Default Purposefully overfilled manual transmission bad idea?

Wasn't shifting into reverse or first gear smoothly and had the idea of tilting car on jack so I could overfill by like 0.3 us quarts thinking mechanisms would be more oiled. Normally would take 1.9 and I put 2.2 probably.

Will I lose horsepower from drag and overheat the gearbox from more drag? Will I damage the seals? Will excess fluid escape somehow? Smelled like burned transmission fluid a few days after driving and getting out of my car.

Well theres good news it shifts into every gear smoother even 1st and reverse smooth. Could just be from New oil but could be since I overfilled eveeytbings getting more lubricated. Am I going to burn up my gearbox though or cause damage though?

Civic 1998 DX
WaryDriver is offline  
Reply With Quote
Old 07-13-2018, 08:40 PM
  #2  
Honda-Tech Member
 
Chance EG's Avatar
 
Join Date: Jan 2013
Location: Austin, TX
Posts: 1,278
Default Re: Purposefully overfilled manual transmission bad idea?

Overfilling the trans case can cause the fluid to foam up, which isn't good. Can also cause an increase in pressure when you're actually making the shifts, which in turn increases the heat on the gears.

Basically, no it's not a great idea as a fix.
Chance EG is offline  
Reply With Quote
Old 07-13-2018, 09:13 PM
  #3  
Honda-Tech Member
 
tony_2018's Avatar
 
Join Date: Nov 2005
Location: Austin, Tx
Posts: 10,743
Default Re: Purposefully overfilled manual transmission bad idea?

But by all means, if you want to keep that much in there and document what happens cool beans.
tony_2018 is offline  
Reply With Quote
Old 07-14-2018, 03:23 AM
  #4  
Honda-Tech Member
 
civic402lx's Avatar
 
Join Date: Jan 2007
Location: INDIANA
Posts: 1,171
Default Re: Purposefully overfilled manual transmission bad idea?

If you think you are smarter then hinda engineers, then go ahead.
civic402lx is offline  
Reply With Quote
 
 
 


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: