8mm pinion problems

[joshludden]

I've just begun switching to 8mm pinions to go with a tp 4060cm. Got a cheap set of 4, 19t-22t. Put the 22t on but couldn't get the pps mount to mesh tight enough. Got a 25t from arrma, but I CANNOT get the thing on the motor shaft. Even tried to dremel it out a little. Am I trying to use the wrong kind of gear? Now I'm stuck, help?

 

[Jeppyjep]

What size spur your running because that’s strange

 

[joshludden]

What size spur your running because that’s strange

34t spool

 

[Engineer]

Safe-D is your issue. I’m not sure the TPPower is cut to that profile. Get yourself some SAGA pinions.

 

[Jeppyjep]

34t spool

Personally I’d go 39 , 34 is small and yes saga all day , fast shipping too
Do you have the shorter adjustment screw in the pps ?

 

[joshludden]

Personally I’d go 39 , 34 is small and yes saga all day , fast shipping too
Do you have the shorter adjustment screw in the pps ?

Yeah, it's the shorter adjustment screw. The way I had to lay everything out I really don't have very much clearance between the spool gear & the battery, so I was hoping to stay w/ a 34t spool. I'll just have to get some more 8mm pinions to try

 

[Moirae]

Your total tooth count is too low. I think pps mount needs at least 71 ttc. You need a bigger spool or pinion.



Edit: apparently for 25mm motor mount hole spacing the ttc is 61? Poop idk

 

[joshludden]

Your total tooth count is too low. I think pps mount needs at least 71 ttc. You need a bigger spool or pinion.

I'm realizing that now New setup w/ the spool so am still learning. Just don't know how much bigger each gear is, diameter wise. Only have like 1-2mm bigger I can go til the battery becomes an issue w/ clearance. I'll just have to gear up my gear calculator says 130ish w/ the 25t

 

[Diem Turner]

PPS mount TTCs:

The 25mm version will allow for a TTC Between 60 and 81 Teeth.
The 30mm version will allow for a TTC Between 71 and 92 Teeth.

 

[joshludden]

PPS mount TTCs:

The 25mm version will allow for a TTC Between 60 and 81 Teeth.
The 30mm version will allow for a TTC Between 71 and 92 Teeth.

59 will not work then? Because a 26t is geared towards 140 & I don't need to jump that far. Could I limit throttle to counteract?

 

[Diem Turner]

59 will not work then?

Very loosely at best. You'd probably chip teeth. Personally, I wouldn't. I mean, you can test it, but it's going to have serious play with minimal engagement.

 

[joshludden]

Very loosely at best. You'd probably chip teeth. Personally, I wouldn't. I mean, you can test it, but it's going to have serious play with minimal engagement.

Given my clearance issues w/ the battery☝, how big of a spool gear could/should I go with?

 

[Diem Turner]

Given my clearance issues w/ the battery☝, how big of a spool gear could/should I go with?

From the looks of it, a 39T should be fine. I think someone else had already said it earlier.

 

[joshludden]

From the looks of it, a 39T should be fine. I think someone else had already said it earlier.

Another thing I have to change ...& buy Never taken apart a spool assembly, any forewarnings?

 

[Diem Turner]

Another thing I have to change ...& buy Never taken apart a spool assembly, any forewarnings?

Nah, they're pretty simple. Nae worries. The other thing I forgot to suggest was try dropping down to 4S (you're running 6S I assume if a 26T would get you in the 140mph vicinity?).

 

[joshludden]

Nah, they're pretty simple. Nae worries. The other thing I forgot to suggest was try dropping down to 4S (you're running 6S I assume if a 26T would get you in the 140mph vicinity?).

Definitely NOT buying new 4s batteries @ the moment. Still in the process of moving, trying to do this as cost effectively as possible.

 

[LibertyMKiii]

Might want to use a cigar torch on the set screws before turning them incase they have red loctite on them.
MIP wrenches of course help too.

I agree with the advice to move up to a 39t spur. That should be a solid next step.

Also worth noting that you might need some additional spool spacers. The stock 34t spool gear has a spool spacer built in where the saga gears do not.

 

[joshludden]

Might want to use a cigar torch on the set screws before turning them incase they have red loctite on them.
MIP wrenches of course help too.

I agree with the advice to move up to a 39t spur. That should be a solid next step.

Also worth noting that you might need some additional spool spacers. The stock 34t spool gear has a spool spacer built in where the saga gears do not.

Just curious, if I could as

Might want to use a cigar torch on the set screws before turning them incase they have red loctite on them.
MIP wrenches of course help too.

I agree with the advice to move up to a 39t spur. That should be a solid next step.

Also worth noting that you might need some additional spool spacers. The stock 34t spool gear has a spool spacer built in where the saga gears do not.

Apparently I didn't really inspect the spool as thoroughly as I should have either before I put it in, was just too excited! How big of spacers we talking? Think any of those brass steering bushings would fit?

 

[Diem Turner]

Just curious, if I could as

Apparently I didn't really inspect the spool as thoroughly as I should have either before I put it in, was just too excited! How big of spacers we talking? Think any of those brass steering bushings would fit?

As long as it's 8mm ID, you're good. Regular 8mm washers work too.

These are the spacers Liberty was talking about.

 

[joshludden]

As long as it's 8mm ID, you're good. Regular 8mm washers work too.

These are the spacers Liberty was talking about.
View attachment 247065

So most types of temp resistant metal tubing of the correct id & od should work?