Grinding from first to second.
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Joined: Mar 2004
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From: North Texas
Originally Posted by slipstream444,Aug 9 2004, 05:04 PM
Welcome to the club. This is a common problem and is caused by a number of things. Firstly, you do need to change to a different transmission fluid. Redline MTL has worked for many (newer transmissions), Redline MT90 (in older transmissions), and many have recently found GM Synchromesh Friction Modified is the fix. This, and really concentrating on your 1-2 shift will alleviate the problem. Definetely bleed your clutch fluid as well.
Is my car a freak 
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Joined: Apr 2001
Posts: 2,898
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From: Fort Worth
Has anyone explored the possibility that the "damper" is also dampening somewhat on the downstroke and preventing proper (quick) disengagement of the clutch?
1-2 grinds are common on MANY Hondas. It does not take very many of them before you will chew the synchros and gears to the point that they can't function normally anymore. Change fluid immediately, pay close attention to your clutching style, and try to prevent it. Otherwise, you will be in for replacing what is probably Hondas most expensive transmission (or parts).
1-2 grinds are common on MANY Hondas. It does not take very many of them before you will chew the synchros and gears to the point that they can't function normally anymore. Change fluid immediately, pay close attention to your clutching style, and try to prevent it. Otherwise, you will be in for replacing what is probably Hondas most expensive transmission (or parts).
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Joined: Dec 2003
Posts: 3,099
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From: Hackensack, NJ
yeah man...this grind is not cool at all...if i shift really fast...i grind hard...i look like a damn newbie tryin to drive stick 
....i used the Friction modified version the GM synchromesh during the winter months to try to get rid of the notchy feeling with no luck...im gonna try it again now as it is warmer...when i ised to use this in my gsr...the GM synchomesh worked very well to get rid of a 5th gear rpm grind... on that note i have half a bottle in my garage left i forgot how many quarts are needed for the s2k...its 2 correct??
Joined: May 2004
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From: San Clemente
Originally Posted by marcucci,Aug 10 2004, 06:34 PM
1-2 grinds are common on MANY Hondas.
Joined: Feb 2004
Posts: 1,491
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From: Pensacola
There was another S2Ki member, not so long ago, came up with the theory that if the clutch was lightened (as in the friction disk), the likelyhood of a grind would be reduced. I've researched this extensively and have come to the conclusion he was spot on. I'm in the process of contacting several clutch manufacturers to see what the cost would be to have a OEM style lightweight disc manufactured.
He postulated that since one of the main roles of the synchro was to accelerate or decellerate the disc (via the input shaft) so that the input shaft speed matched the output shaft speed (listen to that wine when you downshift into first - that's your sychros workin' hard), lowering the mass and rotational inertia of the disc would make the synchro's job much easier.
Of course, Honda could of helped in this process - both by producing a lighter weight disc and by making the mass of the input and output shafts in the tranny lower. Let me keep dreaming.
Food for thought ...
He postulated that since one of the main roles of the synchro was to accelerate or decellerate the disc (via the input shaft) so that the input shaft speed matched the output shaft speed (listen to that wine when you downshift into first - that's your sychros workin' hard), lowering the mass and rotational inertia of the disc would make the synchro's job much easier.
Of course, Honda could of helped in this process - both by producing a lighter weight disc and by making the mass of the input and output shafts in the tranny lower. Let me keep dreaming.
Food for thought ...