No more wheelies

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.
J

jkpc21

Member
Messages
33
Hey guys, i can't get my savage 4.6 to do wheelies anymore. After i went from 17/47 cb and spur to 18/47, the truck wont do wheelies anymore. Does the 1 extra tooth on the cb make that big of a difference. I even have the 3 speed tranny with high speed 3rd gear. What are some other possibilities that can cause this.

Thanks,
 
First question is do you have the slipper tight enough? Try tightening it down. I run mine tight some will loosen a 1/4-1/2 turn.

The 1 tooth shouldn't make that much difference.

17/47= 2.76:1 Ratio
18/47= 2.61:1 Ratio
 
Yeah, the slipper is tight, i only loosen it less than a 1/4 of a turn. I've also tried holding the wheels down while turning the spur gear and it doesnt slip.
 
Well it's possible, i've been trying to tune the tranny for a while now. With factory settings, i never heard the tranny shift, so i messed with the tuning little bit and i still didn't hear it shift. So i tightened the screw for 2-3 gear so it does not shift, and i turned the 1-2 gear screw so it shifts earlier. With this, i hear the car shifting once (i assume it's first to second). Once i heard the car shift, i started to loosed the screw for 2-3 gear, but i never hear it shift a second time. So far, i have not been able to get it to shift twice, so it might just be starting from second and going to third, and thats the shift i am hearing.

Is this possible? What can i do to fix it?
 
I cant remember which way you turn to make it shift later but I would make sure that the 3rd gear isn't shifting at all. Then tune 2nd. and start turning 3rd so it will shift easier. Make little adjustments on it till it shifts correctly. Its a long process and a lot of work but will make sure it will shift 2 times.

Another check: do you have both rear dog bones intact and are you sure there is no slippage in the diff, If so you will not get a wheelie.
 
Ok so i just took the savvy out for a run on a large flat dirt field.

I had the 3rd gear screw tightened all the way so it doesn't shift.

It takes about 50 feet for it to shift once. The 2nd gear screw is about 2 turns in from flush only.. I don't understand how it takes that long to shift.

The car seems to have much more power though, but still no wheelies. I'm going to be adjusting the tranny and try again tomorrow. If you guys know of any tranny tuning vids or something to help me out with the 4.6 engine and 3 speed, that would help.

Thanks
 
I know of nothing. The only way I have a clue is the way I stated.

What clutch shoes are you running. They may be slipping/shot causing no wheelies.

You sure there's no diff issues, missing dog bones, missing hex pins in the cups.
 
ya thats my suggestion as well, depending on how old the shoes are ,it is posssible to take off without wheelie(slipping just ever so slightly) and it could cause the shift issue as well.........jmo
 
There is no adjusting other than on Nova shoes and other than spring diameters. When these things are shot they can just be replaced. If you are running stock shoes switch to Aluminum shoes. Integy has some that are like $10 and actually hold up ok, there are better out there like Nova, ofna, mugen and so on. I run Ofna and Jammin shoes on all my trucks.
 
Oops, sorry I didn't understand that's what you were looking for.

To adjust the slipper all you have to do is tighten the nut a bit on the spur gear. You can run it up tight and back the nut off just a touch like 1/8th turn. You don't want to over tighten it either.
 
Which ofna shoe do you use? My clutch shoe has about 3-4 tanks on it, i had already replaced it, but i used the stock ones again.

Also, which diffs do you guys recommend. i'm going to take a look at them today, but i just want to know what is really good in case i need new ones.
 
The CEN Complete diff mod is about the best. I don't run them I run the stock diffs but make sure they are shimmed correctly and you have aluminum cups not the old plastic cups.

If you only have 4 tanks on the Clutch shoes they should be OK but the stockers just seem to slip easily because of the weight of the truck and the power of these motors.
These are the ofna shoes I run: http://www.amainhobbies.com/product_info.php/products_id/3640

and the jammin ones: http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXVCJ7&P=7
 
Can you give me a link to the CEN diffs you are talking about. I see many different kinds and i just don't want to get the wrong one if i end up buying it.

Savage x 4.6 rtr
 
Finally got a chance to make a video to give you guys a better look as to what is going on.

http://www.youtube.com/watch?v=C1MWIH0n_mo

So as a reminder: Savage x 4.6, 3 speed tranny, 18/47 cb and spur, stock shocks and spring with 40wt

Everything else is stock

The 1-2 gear is about 1 1/2 turns in from flush, the 2-3 gear is tightened all the way.

But hopefully you guys can give me some pointers. I must be doing something wrong. Oh yeah, i had a LHS take a look at the gears, the mesh, slipper..etc, they said everything is in good condition, the mesh is excellent, and nothing seems worn out.

Thanks.
 
Sounds to me like it is shifting very early from 1 to 2. Like just after you get on the throttle. This will hold the front down. Other than that sounds pretty good and seem to have the power.
 
I've tightened 2-3 all the way..and 1-2 is 1 1/2 turns in from flush. Is it possible there is something wrong with the little spring and the ball on the actual gears. You know how if you take the tuning screw out there is a spring and a metal ball.

Is it possible it's still changing 2-3 even though it's tightened all the way?
 
jkpc21 said:
I've tightened 2-3 all the way..and 1-2 is 1 1/2 turns in from flush. Is it possible there is something wrong with the little spring and the ball on the actual gears. You know how if you take the tuning screw out there is a spring and a metal ball.

Is it possible it's still changing 2-3 even though it's tightened all the way?
Click to expand...

Have you tried doing a slow gradual run on it.

Get it running, then gradually build up speed slowly this way you will hear gear changes more prominently...

On mine albeit a 2 speed, when i gave it some throttle it didnt seem to change gear at all and did seem to start only in second and miss first..

It was by clutch shoes being glazed over.(alloy ones).

And i guess your are adjusting the right gear to start with. i.e tightened down 2 to 3 and not 1 to 2.....
Check your clutch and clutch bell, if running alloy shoes then give them and the inside of the clutchbell a light sanding getting rid of all the glazing.
If your using the stronger springs on your clutch then it takes a little harder to engage and then may slip through first and be pulling away in second..

Check your wheels to make sure the hexes arent partially stripped, a stripped hex will slip on the extreme power of first gear but will pick up on second.
 
Last edited by a moderator:
I'm using the stock clutch shoes with stock springs. The screw that I have tightened down all the way is the one that is accesible from the outside of tranny. I'll do some more testing tomorrow with your suggestions and I'll let you know what happens.
 
The design of the transmission needs to shift 1 to 2 to 3 and cant skip in the middle unless something is very much wrong.

If like I said and its shifting to 2nd very quickly which is what it sounds like it will keep you from wheeling. Leave your 2-3 shift tight so it will not shift. Then make sure you get 2nd correct. It should shift at a decent RPM. Then see if you get wheelies.

There are things in the trany that can fail. If the spring isn't good it will not work well also if it will not shift it could be (Pictured below) the cogs in the gears that are worn. This would inhibit any shifting.
2ndgearin3speedproblem002.jpg
 
So i took 2 steps forward and 1 step back. In my previous video, then engine seems to be tuned fine, it was the tranny that was the problem. I followed all the suggestions given, and now the tranny shifts twice like it's supposed to. Now all of a sudden, it's like my engine is completely out of tune. I made a video of what it sounds like. I probably should not have driven it that long, but it shows the problem i am having. I'm going to reset everything to factory settings and retune the next chance i get, but i am wondering if you guys hear anything else wrong with the engine. There are two points in the video where the engine makes a weird popping sound. Also, anytime i let the throttle go for like 2 seconds even, then i go full throttle again, it's really sluggish, but you guys will see in the video.

Also, how can i tell if the clutch shoes are slipping because they are brand new, i even light sanded them. Should i just go with the ofna jammin shoes?

http://www.youtube.com/watch?v=VGmpXd5gfSY

Thanks again, the tranny tuning issue is fixed.
 
You must log in or register to reply here.

Latest posts

Members online

Total: 1,166 (members: 1, guests: 1,165)
Back
Top