08-08-2016, 09:57 AM | #15 | |
Drives: 2014 Camaro LS, 1973 Dart Sport 340 Join Date: Dec 2015
Location: Fayetteville, Arkansas
Posts: 77
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Quote:
There are only so many things that can cause a transmission to grind. You just have to find out if it's caused by something internal (such as bad synchros) or something external (clutch not disengaging, bad shifter, etc.). If the pressure plate wasn't disengaging the clutch, then you likely wouldn't be able to put it into gear with the motor running. The clutch and input shaft need to spin freely in order for the synchros to function properly. If the clutch is still spinning with the motor, then the transmission input shaft and gear cluster will be spinning with the motor too. Grinding happens when there is an RPM difference between the dog teeth on the side of the gear, and the collar that's trying to slide over those teeth. A seized pilot bearing can have a similar effect because it causes the input shaft to spin with the motor even when the clutch is disengaged. Now.. some questions... -When did it start grinding? -Is the grinding getting worse/changing? -Does it go into first easily? -Are you SURE the shifter is FULLY engaging the gear? -How does it act when shifting quickly/firmly and also normally at low RPM's? -How does it act when shifting quickly/firmly and also normally higher RPM's? Try to keep things simple. If you're only having problems under certain conditions, then what about those conditions would cause the problems you're having? If you can drive around town normally with no issues, but it grinds going into 2nd at redline, then your synchros probably aren't grabbing like they should. Issues like a bad pressure plate or shifter might be more apparent all the time or in other conditions. Anyways, just food for thought Good luck on figuring this all out. |
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08-09-2016, 02:32 PM | #16 |
Drives: 2013 AGM 1SS/RS LS3 Join Date: Mar 2011
Location: Cedar Falls, Iowa
Posts: 1,581
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I have the Hurst Pro-Billet Short Throw in my car. Had it since I took delivery of the car. I now have 52,000 miles on the car. At first I was having issues with the 1st-2nd shift only. When I did my cam swap I went with Redline D4 ATF in the transmission and couldn't be happier. Very rarely do I get the 1st-2nd grind and if I do I chalk it up to a mistake by me.
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2013 Camaro 1SS/RS - Ashen Gray Metallic
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08-10-2016, 08:30 AM | #17 | |
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Quote:
It's frustrating because I feel like I'm re-learning how to shift hard/fast with this car. I've had a bunch of other stick cars including a T-56 equipped '96 Z28 and never once had this problem. I'm definitely going to try the Redline D4 ATF and an IdealGarage master cylinder to see if I can resolve it completely, but for the most part, mine just requires some intentionality to not rush the shift and out-run the syncro.
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08-12-2016, 10:32 AM | #18 | |
Drives: 2013 Camaro SS LS3 Join Date: Jun 2015
Location: Davenport IA
Posts: 718
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Quote:
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Romans 5:8 But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. -Fastlane Cold Air Intake, NPP cat back exhaust, Stainless Works LT Headers, 2r max camshaft, Stage 3 Ported Heads (Manley Stainless steel values, titanium retainers, dual valve springs, bronze guides), Wiseco Forged Pistons, K1 Forged Rods, Clevite Bearings, Factory Crankshaft, Comp Cams rocker arm trunion kit, Morel 5315 lifters, JP performance single billet timing chain, Melling oil pump, Spec stage 3+ clutch and flywheel, BMR trailing arms, Nitto 555r 305/35/20. |
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08-12-2016, 10:33 AM | #19 | |
Drives: 2013 Camaro SS LS3 Join Date: Jun 2015
Location: Davenport IA
Posts: 718
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Quote:
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Romans 5:8 But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. -Fastlane Cold Air Intake, NPP cat back exhaust, Stainless Works LT Headers, 2r max camshaft, Stage 3 Ported Heads (Manley Stainless steel values, titanium retainers, dual valve springs, bronze guides), Wiseco Forged Pistons, K1 Forged Rods, Clevite Bearings, Factory Crankshaft, Comp Cams rocker arm trunion kit, Morel 5315 lifters, JP performance single billet timing chain, Melling oil pump, Spec stage 3+ clutch and flywheel, BMR trailing arms, Nitto 555r 305/35/20. |
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08-12-2016, 10:37 AM | #20 | |
Drives: 2013 Camaro SS LS3 Join Date: Jun 2015
Location: Davenport IA
Posts: 718
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Quote:
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Romans 5:8 But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. -Fastlane Cold Air Intake, NPP cat back exhaust, Stainless Works LT Headers, 2r max camshaft, Stage 3 Ported Heads (Manley Stainless steel values, titanium retainers, dual valve springs, bronze guides), Wiseco Forged Pistons, K1 Forged Rods, Clevite Bearings, Factory Crankshaft, Comp Cams rocker arm trunion kit, Morel 5315 lifters, JP performance single billet timing chain, Melling oil pump, Spec stage 3+ clutch and flywheel, BMR trailing arms, Nitto 555r 305/35/20. |
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08-12-2016, 10:39 AM | #21 | |
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Quote:
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GPI Max Package 2.0: Brodix BR7 heads/GPI porting, MAX3 cam, ST2116LSR, BSR Max Lift rockers, LS7 LSXR with 103mm TB, Vararam OTR, Mcleod RXT, G-Force/Strange 9" IRS setup with 4.63 gear. 551whp, 11.1@124mph.
Got a question about a GPI product? Feel free to shoot me a message! |
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08-12-2016, 11:04 AM | #22 |
Drives: 2015 CAMARO Join Date: Sep 2015
Location: Illinois
Posts: 168
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I vote for the throwout bearing wasnt verified/shimmed properly. This must be done or the clutch wont release properly......and that means grind time. Which will KILL your trans in no time. Get this fixed ASAP
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08-12-2016, 11:33 AM | #23 |
Drives: 2013 Camaro SS LS3 Join Date: Jun 2015
Location: Davenport IA
Posts: 718
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if that was the case wouldn't it effect all gears?
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Romans 5:8 But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. -Fastlane Cold Air Intake, NPP cat back exhaust, Stainless Works LT Headers, 2r max camshaft, Stage 3 Ported Heads (Manley Stainless steel values, titanium retainers, dual valve springs, bronze guides), Wiseco Forged Pistons, K1 Forged Rods, Clevite Bearings, Factory Crankshaft, Comp Cams rocker arm trunion kit, Morel 5315 lifters, JP performance single billet timing chain, Melling oil pump, Spec stage 3+ clutch and flywheel, BMR trailing arms, Nitto 555r 305/35/20. |
08-12-2016, 12:48 PM | #24 |
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Exactly - if it's only one shift that's experiencing the problem, you can pretty much rule OUT the clutch.
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GPI Max Package 2.0: Brodix BR7 heads/GPI porting, MAX3 cam, ST2116LSR, BSR Max Lift rockers, LS7 LSXR with 103mm TB, Vararam OTR, Mcleod RXT, G-Force/Strange 9" IRS setup with 4.63 gear. 551whp, 11.1@124mph.
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08-12-2016, 05:40 PM | #25 |
Drives: 2013 Camaro SS LS3 Join Date: Jun 2015
Location: Davenport IA
Posts: 718
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Yeah hopefully I don't have to pull this transmission. I'll change to redline and see what happens
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Romans 5:8 But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. -Fastlane Cold Air Intake, NPP cat back exhaust, Stainless Works LT Headers, 2r max camshaft, Stage 3 Ported Heads (Manley Stainless steel values, titanium retainers, dual valve springs, bronze guides), Wiseco Forged Pistons, K1 Forged Rods, Clevite Bearings, Factory Crankshaft, Comp Cams rocker arm trunion kit, Morel 5315 lifters, JP performance single billet timing chain, Melling oil pump, Spec stage 3+ clutch and flywheel, BMR trailing arms, Nitto 555r 305/35/20. |
08-12-2016, 05:49 PM | #26 |
Drives: 2013 Camaro SS LS3 Join Date: Jun 2015
Location: Davenport IA
Posts: 718
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Video
Here's a video of what I'm talking about to make it a little more clear. No grind just like I hit a wall when trying to go to third.
https://youtu.be/11d0gE02_Tw
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Romans 5:8 But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. -Fastlane Cold Air Intake, NPP cat back exhaust, Stainless Works LT Headers, 2r max camshaft, Stage 3 Ported Heads (Manley Stainless steel values, titanium retainers, dual valve springs, bronze guides), Wiseco Forged Pistons, K1 Forged Rods, Clevite Bearings, Factory Crankshaft, Comp Cams rocker arm trunion kit, Morel 5315 lifters, JP performance single billet timing chain, Melling oil pump, Spec stage 3+ clutch and flywheel, BMR trailing arms, Nitto 555r 305/35/20. |
08-12-2016, 07:54 PM | #27 |
Drives: 2015 CAMARO Join Date: Sep 2015
Location: Illinois
Posts: 168
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I didn't realize it was only one gear having this issue. If it's only third this happens with...definitely a synchro or bent fork issue. The aluminum forks have a tendency to bend with one or two missed shifts.
Only thing I can think of...and fluid won't help it, unfortunately |
09-11-2016, 07:50 PM | #28 |
Drives: 2010 RS , SS , supercharged , Join Date: Aug 2015
Location: Strathroy
Posts: 171
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Or the pads are off the fork ? so you will not get a full engagement from the fork , I have had a few cars with the tremec and none of them like being power shifted , it chews up the teeth on the sliders ?
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Tags |
blockers, grinding, manual, synchros, transmission |
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