April 23, 2024, 05:24:10 PM

News:

For advertising inquiries or help with registration or other issues, you may contact us by email at help@harleytechtalk.com

Breather spacer, best material to make one from?

Started by 1340evo, May 31, 2021, 08:58:46 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Print
Go Down Pages1
User actions

1340evo

May 31, 2021, 08:58:46 AM Last Edit: May 31, 2021, 12:28:26 PM by 1340evo
Sorry for hogging the forum today, but this will be my last question I promise :)

When I took the engine in bits, there was no spacer fitted to the end of the plastic breather.
I've now got a metal one and calculated I need a 4mm spacer.

But question is, whats the best material to make it from?.. I have various plastics, Stainless and brass.. guess it don't get much end load and was thinking brass may be the way to go?

jsachs1

May 31, 2021, 02:20:35 PM #1
Quote from: 1340evo on May 31, 2021, 08:58:46 AM
Sorry for hogging the forum today, but this will be my last question I promise :)

When I took the engine in bits, there was no spacer fitted to the end of the plastic breather.
I've now got a metal one and calculated I need a 4mm spacer.

But question is, whats the best material to make it from?.. I have various plastics, Stainless and brass.. guess it don't get much end load and was thinking brass may be the way to go?
I'd use stainless.
John

Burnout

May 31, 2021, 03:10:58 PM #2
Isn't the stock one plastic, black, hard, maybe fiberglass impregnated epoxy?

Do watch the working temps when messing with plastics.

There is very little thrust, they don't want it to rattle.
They don't call me Ironhead Rick just because I'm "hard headed"

Hossamania

May 31, 2021, 04:51:35 PM #3
Quote from: Burnout on May 31, 2021, 03:10:58 PM
Isn't the stock one plastic, black, hard, maybe fiberglass impregnated epoxy?

Do watch the working temps when messing with plastics.

There is very little thrust, they don't want it to rattle.

He has switched to a metal breather.
If the government gives you everything you want,
it can take everything you have.

1340evo

June 01, 2021, 12:34:12 AM #4
Yes, I've made a .150" stainless one. It's with me now to surface grind the second side at work as I don't have soft jaws on my home machine ;)

Hillside Motorcycle

June 01, 2021, 02:48:42 AM #5
12L14 or 1050 will work just fine.
Final qperation will be to surface grind to the dedicated dimension.
Easy peasy.
Otto Knowbetter sez, "Even a fish wouldn't get caught if he kept his mouth shut"

1340evo

June 01, 2021, 03:01:36 AM #6
Quote from: Hillside Motorcycle on June 01, 2021, 02:48:42 AM
12L14 or 1050 will work just fine.
Final qperation will be to surface grind to the dedicated dimension.
Easy peasy.

Job done.. .150" spot on

SixShooter14

June 03, 2021, 01:35:03 PM #7
Quote from: 1340evo on June 01, 2021, 03:01:36 AM
Quote from: Hillside Motorcycle on June 01, 2021, 02:48:42 AM
12L14 or 1050 will work just fine.
Final qperation will be to surface grind to the dedicated dimension.
Easy peasy.

Job done.. .150" spot on
by my math, that's only 3.8mm  :wink:
'97 Road King, Rinehart True Dual, HSR42, 10:1, EVL3010, 2000i

Ohio HD

June 03, 2021, 03:57:27 PM #8
What did you deburr those edges with?     :dgust:

1340evo

June 06, 2021, 09:02:29 AM #9
Quote from: Ohio HD on June 03, 2021, 03:57:27 PM
What did you deburr those edges with?     :dgust:

Yes, its 3.8mm...
The chamfer is to clear the rad on the breather. It's a special technique so you get points and flats to fling the oil outward  :unsure:
Or maybe a lot of judder on the c/sink, should of done it by hand....  😉
User actions
Print
Go Up Pages1