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Old 10-30-2011, 09:53 PM   #3886
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guys, do you know what to look for when striping gears other than mesh, today i went through two 1st gears and then a 2nd gear on the final. My meshing was spot-on on both gears and im running the old gearbox with a pro oneway, cant really figure whats going on?
Had a similar problem problem with the old trans but with 2nd gear. I tried everything!!!

Things I found make the old trans less likely to strip gears was
1. Check for broken engine mount (Version 1 lwr rear eng mounts break!!!)
1. Check shimming on trans shaft
2. Check roller adjustment (in 2speed shoes)
3. New 2speed adapter/shaft and oneway drive (the pin holes in the shaft wear)
4. Running without grub screw in trans shaft
(this was a last resort effort when it was stripping after all that was changed, and it didn't strip since, but haven't pushed it hard)

Best advice would be to get the SL6. It's much better then the old trans to work on and is more consistent in it's shift point
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Old 11-01-2011, 01:42 PM   #3887
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I had that same problem for month's and kept stripping 1st gears, then 1st and 2nd, mesh is always good.

turned out the cause was the rear chassis brace, the end that screws into the servo tray, the screw was stripped well the plastic the screw screw into was stripped, I noticed it for awhile and never changed it thought a little secure would be good, but it always backed out, then one time it came out and stripped the gears, I screwed in a larger screw that has good grip and no more stripped gears doing 30 minute mains and 3 quals outings with no issues.

That was my issue and fix for my stripped gear issue.
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Old 11-01-2011, 02:23 PM   #3888
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Originally Posted by mauimaxx View Post
I had that same problem for month's and kept stripping 1st gears, then 1st and 2nd, mesh is always good.

turned out the cause was the rear chassis brace, the end that screws into the servo tray, the screw was stripped well the plastic the screw screw into was stripped, I noticed it for awhile and never changed it thought a little secure would be good, but it always backed out, then one time it came out and stripped the gears, I screwed in a larger screw that has good grip and no more stripped gears doing 30 minute mains and 3 quals outings with no issues.

That was my issue and fix for my stripped gear issue.
This is based on the original 733 not the EVO or TE version.
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Old 11-02-2011, 04:50 AM   #3889
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Main thing i found with the old gearbox issues was....

1- broken engine mount every time i stripped 2nd gear it was a hair line fracture in the 3 piece engine mount.

2- the plastic brace from the radio tray to the layshaft bulk head screw stripped and comes out or loose and moves on the radio tray alowing the car to flex front to back.

They were the main things also gear shimming but that is standard make sure your pinions are all the way onto your spur's

the new sl6 gear box i have not seen much of a improvement!!!!

Yes there is less rotational mass i get that the change is less consistent and the gears still strip

here is what i found to get the sl6 to work----

1- superglue the 2nd gear screws into the housing (why you ask??)
these screws come loose so fast and create a elongated hole on the 2nd gear housing alowing the 2nd gear to move back and forward good luck getting a good mesh after that the gear will just strip.

2- the little grub screws that we all never used (well some did) that adjust the hight of the 2 speed shoes need to be checked and in my case glued as they come loose and alows the 2speed shoe carrier to float and become loose this made the gear box very inconsistent like very once these grub screws were tightened up the gear box was great.

3- shim that bastard yes shim the gear box right if its not shimmed right there is too much play in the layshaft and your spur's will hit the pinion if not your 2nd gear housing will hit the layshaft bulkhead so shimming here is essential.

so you can see you can have a 733 with out stripping gears but it is an effort.

god luck and the 733 is fast and a good car to own but like everything in this hobby (sport) you need to keep ontop of these things.

Serpents stripping gears can be resolved quick go run a r4 and you will be doing a diff change in a 10min qualify

mugen stripping gears and doing diff's locally here

so every car has there issues.
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Old 11-02-2011, 06:46 AM   #3890
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I stripped gears on my 733 during 2010 season( I bought the car used during the second half of the season). I tried everything. The one thing I notice is every time I put the brace on, I always had to pry it in (just a little). Thats when I decided to check my chassis and it was bent like a banana. I could set the gear mesh on the bench but has soon as the car hit the track and I hit a bump the chassis would flex and strip either 2nd or 1st gear. It drove me crazy for awhile. I replaced the chassis for the 2011 season and I never stripped one gear the entire season. If your rear belt fits extremely loose to point where it might skip teeth I would check for a bent chassis. I just got my 733 TE yesterday. I plan on starting the build around Xtmas time; so I have no experence with the SL6 gearbox. and yes... the 733 is a fast ride I just love the corner speed of the 733


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Old 11-02-2011, 07:45 AM   #3891
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Originally Posted by lil-bump View Post
I stripped gears on my 733 during 2010 season( I bought the car used during the sencond half of the season). I tried everything. The one thing I notice is every time I put the brace on, I always had to pry it in (just a little). Thats when I decided to check my chassis and it was bent like a banana. I could set the gear mesh on the bench but has soon as the car hit the track and I hit a bump the chassis would flex and strip either 2nd or 1st gear. It drove me crazy for awhile. I replaced the chassis for the 2011 season and I never stripped one gear the entire season. If your rear belt fits extremely loose to point where it might skip teeth I would check for a bent chassis. I just got my 733 TE yesterday. I plan on starting the build around Xtmas time; so I have no experence with the SL6 gearbox. and yes... the 733 is a fast ride I just love the corner speed of the 733


Pass you soon...
+1 i had the exact same thing happen to me, but with my car it was the brace itself. i had the CSO brace and it was slightly short and it caused the chassis to bow. if you have an aluminum chassis brace stick with the serpent one.
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Old 11-02-2011, 11:40 PM   #3892
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With the gear stripping too scenario I forgot to mention I don't run Serpent pinions.
Serpent should undercut their pinions a bit
I say this only because Zeppin pinions are undercut, and mesh better, run quieter and wear better + no stripped gears so far
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Old 11-03-2011, 02:30 AM   #3893
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Has anyone got a part # for 27mm Orange springs?
I can't find it anywhere
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Old 11-03-2011, 02:31 AM   #3894
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Old 11-03-2011, 03:08 AM   #3895
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Has anyone got a part # for 27mm Orange springs?
I can't find it anywhere
L27 orange spring - 160322
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Old 11-03-2011, 03:17 AM   #3896
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L27 orange spring - 160322
Thanks mate
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Old 11-03-2011, 07:22 AM   #3897
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Has anyone seen a part number from Serpent for the clutch weights for the new ultra clutch " the machined clutch weights". I really don't want to buy the ultra clutch without the ability to buy spare clutch weights.


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Old 11-24-2011, 05:02 PM   #3898
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..??..
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Old 11-24-2011, 05:02 PM   #3899
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Has anyone seen a part number from Serpent for the clutch weights for the new ultra clutch " the machined clutch weights". I really don't want to buy the ultra clutch without the ability to buy spare clutch weights.


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???
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Old 11-24-2011, 09:28 PM   #3900
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Default gear strip problems..

hi just like to share my findings...one of the reason my gear strips was due to no free play at the 2speed shaft. once i give it a small free play it was solve...
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