.:HSTuners::

wheresmylicense · 08-22-2005, 10:59 AM

i have a manual 97 civic, and lately it's been acting sort of weird. whenever i go to shift into third gear and it's above about 4000 rpms, it sort of grinds through the gears, making that sound it makes when you try to force a shift. only difference is it doesn't put up too much resistance and it slips right in.

kind of difficult to explain, but i was wondering if any of you have had or have heard of the same issue. maybe the syncronizing mechanism isn't working right?

ebpda9 · 08-22-2005, 11:52 AM

maybe your clutch is starting to go.

*AzCivic* · 08-22-2005, 11:54 AM

sometimes worn engine mounts can cause a shifting problem, but if you try gm's synchromesh FM and it goes away then yeah its probably the synchro's.

*pdiggitydogg* · 08-22-2005, 12:11 PM

Quote:

Originally posted by AzCivic
sometimes worn engine mounts can cause a shifting problem, but if you try gm's synchromesh FM and it goes away then yeah its probably the synchro's.

My thoughts exactly

JDMFantasy2k · 08-22-2005, 05:18 PM

god bless synchromesh FM

wheresmylicense · 08-22-2005, 10:26 PM

can someone explain syncromesh fm?

JDMFantasy2k · 08-23-2005, 04:37 PM

gm makes two versions of their synchromesh tranny fluid, a regular version, and a friction modified version. You want the friction modified version. I guess it just has a better "healing effect". But it takes time (like a week or two) and it usually doesn't come cheap. The GM dealer wanted to charge me like 11.50 a fucking quart and i talked him down to 10

Well worth the cash though. Any GM dealer should have it. If you need to, search for it on honda tech for the part number

*pdiggitydogg* · 08-23-2005, 05:58 PM

Its a synchro bandaid - coats them and magically makes the grinding (slight grinding) go away after around 100miles.
In no way does it fix the problem and in no way do I know how it really works

JDMFantasy2k · 08-23-2005, 06:10 PM

yeah i forgot to say that

*AzCivic* · 08-23-2005, 08:02 PM

fixed my grinding problem almost immediatly in my civic, and worked the whole time I had that tranny in the car. its called a "band-aid" but i really haven't heard of anyone who has used it and had their grind come back. the only time i did hear of a grind come back it turned out they werent using the FM.

wheresmylicense · 08-24-2005, 10:55 AM

awesome, thanks a lot... i'm going to have to check that out now...

08-22-2005, 10:59 AM	#1
wheresmylicense Registered User Join Date: Jan 2003 Location: California Posts: 411	possible gearbox problem... i have a manual 97 civic, and lately it's been acting sort of weird. whenever i go to shift into third gear and it's above about 4000 rpms, it sort of grinds through the gears, making that sound it makes when you try to force a shift. only difference is it doesn't put up too much resistance and it slips right in. kind of difficult to explain, but i was wondering if any of you have had or have heard of the same issue. maybe the syncronizing mechanism isn't working right? __________________ ~DevT Pictures of My Baby

08-22-2005, 11:52 AM	#2
ebpda9 Repost Wagon Join Date: Dec 2001 Location: over here Age: 44 Posts: 17,266	maybe your clutch is starting to go. __________________

08-22-2005, 05:18 PM	#5
JDMFantasy2k Registered User Join Date: Mar 2004 Location: northeastern connecticut Age: 37 Posts: 1,765	god bless synchromesh FM __________________

08-22-2005, 10:26 PM	#6
wheresmylicense Registered User Join Date: Jan 2003 Location: California Posts: 411	can someone explain syncromesh fm? __________________ ~DevT Pictures of My Baby

08-23-2005, 04:37 PM	#7
JDMFantasy2k Registered User Join Date: Mar 2004 Location: northeastern connecticut Age: 37 Posts: 1,765	gm makes two versions of their synchromesh tranny fluid, a regular version, and a friction modified version. You want the friction modified version. I guess it just has a better "healing effect". But it takes time (like a week or two) and it usually doesn't come cheap. The GM dealer wanted to charge me like 11.50 a fucking quart and i talked him down to 10 Well worth the cash though. Any GM dealer should have it. If you need to, search for it on honda tech for the part number __________________

08-22-2005, 11:54 AM	#3
AzCivic Moderator Join Date: Feb 2002 Location: Az Age: 43 Posts: 3,804	sometimes worn engine mounts can cause a shifting problem, but if you try gm's synchromesh FM and it goes away then yeah its probably the synchro's.

08-23-2005, 05:58 PM	#8
pdiggitydogg Yahoo Watashi wa kattaze! Join Date: May 2002 Location: Meanwhile, up in The D... Age: 41 Posts: 10,579	Its a synchro bandaid - coats them and magically makes the grinding (slight grinding) go away after around 100miles. In no way does it fix the problem and in no way do I know how it really works

08-23-2005, 06:10 PM	#9
JDMFantasy2k Registered User Join Date: Mar 2004 Location: northeastern connecticut Age: 37 Posts: 1,765	yeah i forgot to say that __________________

08-23-2005, 08:02 PM	#10
AzCivic Moderator Join Date: Feb 2002 Location: Az Age: 43 Posts: 3,804	fixed my grinding problem almost immediatly in my civic, and worked the whole time I had that tranny in the car. its called a "band-aid" but i really haven't heard of anyone who has used it and had their grind come back. the only time i did hear of a grind come back it turned out they werent using the FM.

08-24-2005, 10:55 AM	#11
wheresmylicense Registered User Join Date: Jan 2003 Location: California Posts: 411	awesome, thanks a lot... i'm going to have to check that out now... __________________ ~DevT Pictures of My Baby

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