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QRP
Samba Member
Joined: April 27, 2008
Posts: 1712
Location: NORTH HOLLYWOOD,CA
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 Posted: Sat Mar 21, 2020 11:35 am Post subject: Re: Alternative barrel shims? Opinions wanted. |
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I just might run the ( ring/shim ) just to prove I can make it work without leaking . . . LOL
This is starting to sound like a challenge . . . HAHAHA
And if you run a 8.5:1 with a stock cam in your motor and it works for you thats great. I don't
This thread was not a discussion about compression ratios. |
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raymon covey
Samba Member
Joined: April 30, 2005
Posts: 189
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| Posted: Sat Mar 21, 2020 11:48 am Post subject: Re: Alternative barrel shims? Opinions wanted. |
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| Just take a little off of the top of the piston and re balance. |
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AlteWagen
Troll
Joined: February 23, 2007
Posts: 8503
Location: PNW
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modok
Samba Member
Joined: October 30, 2009
Posts: 26790
Location: Colorado Springs
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| Posted: Sat Mar 21, 2020 12:34 pm Post subject: Re: Alternative barrel shims? Opinions wanted. |
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| What kind of sealant do you figure is going to seal that .020 gap? |
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chrisflstf
Samba Member
Joined: February 10, 2004
Posts: 3446
Location: San Diego
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| Posted: Sat Mar 21, 2020 12:54 pm Post subject: Re: Alternative barrel shims? Opinions wanted. |
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| Quote: |
| What kind of sealant do you figure is going to seal that .020 gap? |
The gap is .400 wide and .020 tall
Buy the shim and save your time and money |
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QRP
Samba Member
Joined: April 27, 2008
Posts: 1712
Location: NORTH HOLLYWOOD,CA
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| Posted: Sat Mar 21, 2020 1:16 pm Post subject: Re: Alternative barrel shims? Opinions wanted. |
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| modok wrote: |
| What kind of sealant do you figure is going to seal that .020 gap? |
Mega black  |
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AlteWagen
Troll
Joined: February 23, 2007
Posts: 8503
Location: PNW
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| Posted: Sat Mar 21, 2020 2:25 pm Post subject: Re: Alternative barrel shims? Opinions wanted. |
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On one of the leakers I broke down they used two paper gaskets sandwiching the ring. Looks like the order was as follows:
aviation gasket
paper gasket
aviation gasket
ring with orange silicone in the gap
aviation gasket
paper gasket
aviation gasket
I think if you used RightStuff sealant, clocked the gap to the top, and deal with case pressure it will work for a while. There is always a cost even when free, oil leaks on a beater is acceptable
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QRP
Samba Member
Joined: April 27, 2008
Posts: 1712
Location: NORTH HOLLYWOOD,CA
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| Posted: Sat Mar 21, 2020 3:08 pm Post subject: Re: Alternative barrel shims? Opinions wanted. |
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| AlteWagen wrote: |
| Yo Rick, I broke down a few engines at United that had rings as shims. They were the greasiest engines I had ever seen. The ones on the 3/4 side seemed to leak the most and could actually see a clean spot where the flow of oil was leaking out. The 1/2 side was not as bad but still leaked a lot. |
Are you talking about United Auto in North Hollywood?
That place was never really known for quality engine building.
BYW. paper cylinder gaskets suck. |
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AlteWagen
Troll
Joined: February 23, 2007
Posts: 8503
Location: PNW
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| Posted: Sat Mar 21, 2020 5:01 pm Post subject: Re: Alternative barrel shims? Opinions wanted. |
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| QRP wrote: |
Are you talking about United Auto in North Hollywood?
That place was never really known for quality engine building.
BYW. paper cylinder gaskets suck. |
The amount of stuff I learned from that chop shop was amazing. These were not the engines they sold but customer cores. One of them for sure was from an industrial farm application
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Grapes of Wrath $200 Engine Rebuild
Official Dual Carb Thread
Cylinder Head Quick Reference Sheet |
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67 Sunroof
Samba Member
Joined: February 22, 2014
Posts: 1836
Location: Salisbury, MD
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| Posted: Sat Mar 21, 2020 7:33 pm Post subject: Re: Alternative barrel shims? Opinions wanted. |
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I would say don’t risk having to break it back down on a $20 part. It ain’t worth it man.
Don’t “prove anyone wrong”.
Just do it right.
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1776cc, CB crank, CB 2241 cam, CB light lifters, CB H-beam rods, CB light flywheel, Mahle forged pistons, A1 Sidewinder exhaust, Dellorto drla 40’s, Hoover modded case, fully balanced, fully flowed, heads by www.type-emotorsports.com, Air ride suspension by https://www.airkewld.com/?Click=3989 |
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FreeBug
Samba Member
Joined: March 12, 2012
Posts: 4278
Location: deepest, darkest Switzerland
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| Posted: Sun Mar 22, 2020 4:25 am Post subject: Re: Alternative barrel shims? Opinions wanted. |
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| Use Total Seal gapless rings. |
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Sun Mar 22, 2020 8:42 am Post subject: Re: Alternative barrel shims? Opinions wanted. |
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| WOW. |
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FreeBug
Samba Member
Joined: March 12, 2012
Posts: 4278
Location: deepest, darkest Switzerland
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| Posted: Sun Mar 22, 2020 10:10 am Post subject: Re: Alternative barrel shims? Opinions wanted. |
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I KNOW, I think t's a great idea, too. My genius knows no bounds.
You're always telling us how well they seal.  |
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