 Transmission Hang-ups |
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| 57lincolnman |
 Nov 19 2014, 07:56 AM
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#1
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Member  Group: Members Posts: 174 Joined: 14-September 10 From: Los Angeles Member No.: 12,175 Region Association: Southern California  |
My '75 occasionally grinds when I drop it into 1st at a complete stop. It usually happens after being driven at highway speeds. It also is sometimes difficult to get it into 1st from a complete stop (almost always when I'm the lead person a stoplight). I have a Rennshifter installed and the firewall bushing has been replaced recently, so I don't think it's in the linkage. Transmission fluid was recently changed. Is it time for tranny rebuild or is this just the finicky nature of the beast?
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Replies(1 - 6)
| ericoneal |
Nov 19 2014, 08:15 AM
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#2
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Member Group: Members Posts: 320 Joined: 13-August 12 From: Crestwood, KY Member No.: 14,795 Region Association: South East States |
Mine does exactly the same thing, I thought it was normal from what I have read..
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| SLITS |
Nov 19 2014, 09:49 AM
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#3
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
I always drop it in first while rolling to a stop. No problems!
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| roblav1 |
Nov 19 2014, 09:51 AM
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#4
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Senior Member Group: Members Posts: 528 Joined: 18-September 12 From: KY Member No.: 14,943 Region Association: MidAtlantic Region |
Either weak 1st synchro, clutch release bearing, or maladjusted clutch pedal movement. It could also be the oil used in the box. In my experience with the 901 box, the 1st synchro tends to be weak, and I would usually put the car in 1st while still slightly moving and leave the clutch in while at a stoplight / sign.
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| mgp4591 |
Nov 19 2014, 09:51 AM
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#5
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914 Guru Group: Members Posts: 5,374 Joined: 1-August 12 From: Salt Lake City Ut Member No.: 14,748 Region Association: Intermountain Region 
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If it's like most trannys, I always go to second before trying for first. Gets the cluster spinning at a more appropriate speed...
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| 57lincolnman |
Nov 19 2014, 10:07 AM
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#6
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Member Group: Members Posts: 174 Joined: 14-September 10 From: Los Angeles Member No.: 12,175 Region Association: Southern California |
QUOTE(roblav1 @ Nov 19 2014, 07:51 AM)  Either weak 1st synchro, clutch release bearing, or maladjusted clutch pedal movement. It could also be the oil used in the box. In my experience with the 901 box, the 1st synchro tends to be weak, and I would usually put the car in 1st while still slightly moving and leave the clutch in while at a stoplight / sign. OK thanks. I replaced the clutch release bearing when I rebuilt the engine. Could be the clutch pedal adjustment though. Will check that out. |
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| ndfrigi |
Nov 19 2014, 10:32 AM
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#7
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Advanced Member Group: Members Posts: 2,928 Joined: 21-August 11 From: Orange County Member No.: 13,474 Region Association: Southern California
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QUOTE(SLITS @ Nov 19 2014, 07:49 AM) I always drop it in first while rolling to a stop. No problems! My 75 1.8 FI has no 1st gear (popping out when releasing the clutch pedal which I know has a synchro issue) since 2011 but I still drive my car using 2nd gear. But the issue you have has the same thing with my 2nd gear from full stop, so I also put into 2nd gear while rolling before a full stop. And yes no problem except giving so much force with our clutch tube (although I already repaired my clutch tube last year). Just sharing also. |
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