Write Up: SOHC Manual Transmission fluid change ( Pennzoil Synchromesh )

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Old Mar 19, 2005 | 06:47 PM
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Default Write Up: SOHC Manual Transmission fluid change ( Pennzoil Synchromesh )

Hello, this is my first write up I've done so bare with me and please feel free to add constructive comments or suggestions. The car is an 89 CRX Si with a D16Z6 swap utilizing the Si's cable transmission. This should be similar to all SOHC mated transmissions along with possible most if not all B, F, and H series also. The fluid we chose to use was Penzoil Synchromesh that we got at Autozone for around $6.50 a quart. The car was overdue for the change so we decided to go with this fluid due to the popularity around the net and this board.



Tools Needed:

-17 MM wrench
-3/8" socket wrench (optional 1/2 breaker bar with 3/8" adaptor if its tough)
-lug nut wrench
-2 quarts preferred transmission fluid
-funnel
-jack and stands
-drain pan
-wheel chock

Time Needed:

20-30 minutes

Difficulty:

Easy


STEP 1:

Pull up the emergency brake and chock the rear wheels to prevent rolling. Loosen the lug nuts on the passenger front wheel and place the jack under the car in the front. Place jackstand on either sides of the car.



STEP 2:

Proceed to remove the passenger wheel. You can now see the side of the tranny and the drain bolt (pictured in the blue square).



STEP 3:

Place the drain pan under the drain plug. Find the fill plug diagonally up from the drain plug behind the axle and loosen it, using the 17MM wrench, to help drain faster (pictured below in the yellow square). Use the socket wrench (or breaker bar) to take off the drain plug, remove plug and drain until it stops flowing out.



STEP 4:

After completely draining replace the drain plug and tighten to spec. Completely remove the fill plug and using a long funnel or pump insert the end into the fill hole. I use a long funnel with a small hose attached to the end and fill it from the top (as pictured in green square).



STEP 5

From the top fill the funnel with fluid slowly until you see fluid coming out of the fill hole. Now remove the funnel, replace the fill bolt and tighten to spec. Remove the drain pan and continue to place the wheel back on the car and tighten the lug nuts. Remove the jack stands and lower the car. Tighten lug nuts to spec.




Final Conclusion

The car was grinding a little in second when shifting above 6k RPM's in second. The car now shifts much crisper and doesn't grind in second any more. I can personally vouch for this fluid in my own vehicle (90 LS Integra) after I had a rebuild. So its definetly worth the 13 bucks even if its only to get some experience and your hands dirty.

Heres a reward for the long reading:






Modified by yebabee at 7:59 PM 3/19/2005
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Old Mar 19, 2005 | 06:51 PM
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Default Re: Write Up: SOHC Manual Transmission fluid change (yebabee)

nice crx.....
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Old Mar 20, 2005 | 05:16 AM
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Default Re: Write Up: SOHC Manual Transmission fluid change (yebabee)

bump cuz this was for the late nighterz
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Old Mar 20, 2005 | 07:04 AM
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Default Re: Write Up: SOHC Manual Transmission fluid change (yebabee)

good write-up...
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Old Mar 20, 2005 | 08:06 AM
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Default Re: Write Up: SOHC Manual Transmission fluid change (crxgator)

the fill hole is more like a level check hole. it is 100x easier to take fill through the reverse switch, just take the fill plug out to check the level first.
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Old Mar 20, 2005 | 08:39 AM
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Default Re: Write Up: SOHC Manual Transmission fluid change (krustindumm)

I think that the radiator hose makes it more difficult than its worth to remove the reverse light switch...but if you do it, be careful not to get the wires twisted up they can break at the stem.
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Old Mar 20, 2005 | 09:15 AM
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good write up. I fill my transmission using the opening from the speedometer gear.
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Old Mar 20, 2005 | 11:35 AM
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Default Re: (CRX-Fluffy)

good write up like the 55 chevy in the last pic
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Old Mar 21, 2005 | 04:42 PM
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Default Re: (elrandeeto)

Fresh *** CRX, dawg, very clean
I just want this post, so im saving it with a bump
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Old Mar 21, 2005 | 04:44 PM
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Default Re: (elrandeeto)

Is it very different for automatics, BTW, i want to help a friend out with an atuomatic of the same car
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Old Mar 21, 2005 | 04:54 PM
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Default Re: (4door_ridin)

I use the same stuff, people swear by the GM stuff but thats about 15 bucks a quart. This stuff works just as good.
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Old Mar 21, 2005 | 05:23 PM
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Default Re: (90blackcrx)

i used the speedo opening and i use GM friction modified fluid... and it was 11 bucks which is still expensive but it feels so smooth...
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Old Mar 24, 2005 | 11:28 AM
  #13  
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i heard Penzoil is the same formula as the GM except its just different packaging....
GM works but imma also try this Penzoil
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Old Mar 24, 2005 | 11:37 AM
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nice write up w/ pics, i coulda used this a year ago before i knew how...
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Old Mar 24, 2005 | 11:56 AM
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Default Re: (recluse)

dont mean to criticize, but arent you supposed to put in the fluid with the car level instead of one end jacked up?
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Old Mar 24, 2005 | 04:17 PM
  #16  
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Default Re: (MtnCRX)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MtnCRX &raquo;</TD></TR><TR><TD CLASS="quote">dont mean to criticize, but arent you supposed to put in the fluid with the car level instead of one end jacked up?</TD></TR></TABLE>

this is a logical question. Due to the shape of the tranny it doesnt mean all that much, but obviously every little difference can mean something. i suggest also just bringing up the drivers side aswell.
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Old Mar 30, 2005 | 11:06 AM
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Has anyone bought GM Synchro Mesh Friction Modified part # 12377916 recently? I have called almost all the GM dealers in my area and they say that it is the old formula and the non friction modified is the new stuff. They are also telling me its very hard to find (which it is) and that I should get the other one (cylindrical bottle - non friction modified) What do you guys think? Is it true that # 12377916 is the old stuff? Thanks
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Old Apr 4, 2005 | 04:29 PM
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thanks for the write up, i changed the tranny oil today with the same as you.

shifts alot softer.

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Old Apr 4, 2005 | 04:57 PM
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Default Re: (dlszrfn)

So you just keep adding until it comes out the level check hole and then cap it off? Nice write up, I know what I am doing this weekend.
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Old Apr 4, 2005 | 05:01 PM
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Default Re: (vegaskurt)

Nice, I think that removing the wheel was more work than needed, but I'm a slacker. I just changed the oil in my EG on Sunday, and used GM Synchromesh friction modified.
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Old Apr 4, 2005 | 05:03 PM
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Default Re: (DJ_SaNdOz)

awesome glad to be of help. we just removed the wheel for picture quality and ease of access it's not necessary for this procedure.
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Old Apr 4, 2005 | 05:03 PM
  #22  
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Default Re: (yebabee)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yebabee &raquo;</TD></TR><TR><TD CLASS="quote">awesome glad to be of help. we just removed the wheel for picture quality it's not necessary for this procedure.</TD></TR></TABLE>

that was my suspicion.
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Old Apr 6, 2005 | 05:52 AM
  #23  
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i didnt remove the wheel at all, hell, i have the car on ramps working under it!
those bolts are freaking tight.

and the fill hole bolt is the shortest fattest bolt ive ever seen!
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Old Apr 6, 2005 | 06:44 AM
  #24  
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yea, my fill bolt is stripped like no tomm. but i do have have the fluid, and i cant get that reverse light bolt off thats on there good too, and now the only option left is the speedo cable that shouldnt be hard..but awesome write up esp. with very very descriptive pics. good job.
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Old Apr 6, 2005 | 07:12 AM
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Default Re: (pr3d)

nice work im going to return the fluid i just bought and pic some of that stuff up
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