TC extra part? Edit how to fit drive pulley to engine

[Bansil]

Ok, what is this for? Assembly drawing shows it over top of brass/bronze bushing , GPS video and others don't show it?
It appears to be alum.


Not the chain guard

 

[Bansil]

Item #2 I think some numbers are mixed up. Maybe this is a speed limit spacer?

 

[ezcome-ezgo]

If it is a "speed limit" anything, it belongs in the recycle/reuse.

 

[Bansil]

If it is a "speed limit" anything, it belongs in the recycle/reuse.

I moar of a curiosity at this point

 

[Snaker]

I'm guessing that its #19.
If its the same ID/OD as #5, then it would be an extension of #5.
I'm thinking #2 is a bigger ID than #5 and would ride on top of #5 as a belt idler bushing?

 

[Bansil]

Yes,it fits over the bushing, I'm guessing so the plates will stop closing the gap, so belt will not "keep growing" increasing speed/rpm?

Just never seen such a creature

 

[karl]

Yeah it prevents the torque converter from going into overdrive. Depending on vehicle weight, gear ratio, and motor mods it may be beneficial to install it, especially if your trying to push alot more rpm then the converter was intended for. Generally on a stock engine, the shim will only limit top speed and should be removed.

 

[Bansil]

Since we are here, I need to shim it the pulley out from engine about 3/16 just use 3/4 flat washers? I don't have tubing or a lathe at the house...I hyjacked my own thread.

They are square just not aligned, no room to adjust engine sideways....how close they got to be?

 

[BaconBitRacing]

Since we are here, I need to shim it the pulley out from engine about 3/16 just use 3/4 flat washers? I don't have tubing or a lathe at the house...I hyjacked my own thread.

They are square just not aligned, no room to adjust engine sideways....how close they got to be?
View attachment 137393

Well at least you hijacked it…

 

[BrownStainRacing]

Yes,it fits over the bushing, I'm guessing so the plates will stop closing the gap, so belt will not "keep growing" increasing speed/rpm?

Just never seen such a creature
View attachment 137390

Yeap, it keeps the t/c outta overdrive on the 6" driven. It's a quik upgrade for under powered, over loaded vehicles, thats not running enough gear with the 6" driven pulley.

Let's say you have 50t/10t sprockets for a 5:1 gear.

The 6" driven is .90:1 (overdrive) when belts shifts to high, without the lil spacer.

Your final drive will now be 4.5:1. And pulling alot of power from the engine.

I was experimenting with different thickness of spacers, then quickly learned they made a 7" driven that is 1.12:1 on the high side of the t/c. And a very noticeable improvement on the low side of the t/c.

 

[Bansil]

So,I can deal with the spacer behind pulley, easy fix....why in %$#@@ would GPS have you buy 5/16-24 bolts 2-1/4 long??? It needs about 1-1/4 long bolt, crank only has about 3/4 thread....ergh...and about 3/8 more needed. Store is 1-1/4 hr away so a 3 hr trip for 2 dang bolts..

What length is everyone using?

 

[Bansil]

It's all I lack....I guess move onto other build....

 

[Bansil]

While working on she shed, I found these cleaning out my old work tool box, 28 years as a machinist has an advantage....hardened precision 3/4" washers.

.248 Thick, perfect-ish

 

[Bansil]

All I gotta do is go to town after dump run in morning and get some bolts...

 

[panchothedog]

In post #8 you ask how close they gotta be. A LOT closer than they are in your picture. If that is a 3/16" mismatch , then about 3/16". I have set up 5 different
T-C's ( 30 series ) and they need to be a lot closer than a 40. I won't run them
unless they are dead on. You can buy shim kits. I think they are about .020" thick . Crankshaft shims 3/4" id. are . 007" & . 010" I believe . Typical hardware store washers are about .050" thick . So with a little manipulation it's possible to get REALLY close. Pretty sure all the major kart supply shops sell the shim kits. 5/8" for the Jack shaft and 3/4" for the crank. Plus now you don't have to make that long drive to town. You can just wait for the mailman to deliver.

 

[Bansil]

The .248 shims made it gtg...will hit the true value in a few hrs its only 20 min away and get a few 1.750 bolts, wifey wants to ride tomorrow

 

[Bansil]

She is up and running.....

Stock is stupid fast....video in other thread

.

 

[Denny]

We like stupid anything around here?

 

[ezcome-ezgo]

Going into town to dump? Put the karts aside and work on your plumbing for a minute.

 

[Bansil]

Going into town to dump? Put the karts aside and work on your plumbing for a minute.

It's a kuntry thang