Lapping piston rings - Page 3

Dwight Southerland · 01-17-2016, 03:14 PM

Quote:

Originally Posted by Eman

I remember reading that Chevrolet used cleanser as a field fix for seating rings on the early V-8's.

Bon-Ami was the choice. I got to experience stopping on the way to Amarillo to a point race, unloading the car and running it up and down the highway applying the Bon-Ami to get stainless steel rings to seat.

older racer · 01-17-2016, 03:27 PM

lol, I remember aircraft radial engines, had chrome cylinders and cast rings, bon ami was used to get them to quit pumping oil. they could use a lot of oil too . it was a last resort.

Ed Wright · 01-17-2016, 05:20 PM

Quote:

Originally Posted by Dwight Southerland

Bon-Ami was the choice. I got to experience stopping on the way to Amarillo to a point race, unloading the car and running it up and down the highway applying the Bon-Ami to get stainless steel rings to seat.

Been there. Used Bon-Ami as well. Stainless Dykes rings in my old '56 Jr Stocker.

Rich Biebel · 01-17-2016, 06:00 PM

The BonAmi trick was a Pontiac approved fix attempt for oil burning engines. I recall hearing of it and to this day if I hear the name BonAmi that's exactly what I think of. Add some to your oil to get your rings to seat.

impstocker · 01-17-2016, 06:54 PM

Thanks Dwight, I think I might have bought my Shubeck lifters from you back in 2002 or around then? Anyway your right , you do learn by doing. My 65 Impala is coming out "better" than the 68 Impala I built. This time I was able to do much of the work myself. I will be with Jimmy Vignogna, my engine guy, as we go through the process building the 396 at his Machine Shop.

Another drag racing friend, Pat Hennebery, said the first objective in building a drag car is to just get it down the track. Makes sense.

Hope I don't hijack this thread. ! Sorry

Will Lamprecht Div 1

FSA1673 · 01-17-2016, 07:58 PM

Quote:

Originally Posted by Larry Hill

Good article on Scott's B/SA car, man is that thing fast. Does anyone know what rod bearing to order that is for a crank pin of 2.200'' with a Pontiac rod housing bore of 2.375'' ? I got a neighbor that would love to save his OEM crank.

He is using a BBC rod, not a stock Pontiac rod. It is NHRA approved for a Pontiac Stocker.

GTOMayhem · 01-17-2016, 08:26 PM

Quote:

Originally Posted by JHeath

Car Craft November 1974, I will try to scan it

Thanks, I have already acquired the 68' Car Craft magazine with the "Build the Ultimate Jr Stocker" articles, as well a few others with GTO or other Pontiac builds. The articles are very detailed and seeing the old ads is great.

My son and I are working on our 1967 GTO and plan on building it as a late sixties stock eliminator. We plan on doing almost all the work ourselves, so I am trying to find as much information as I can on all aspects of past and present race car building.

Everyone on this site is great and have been exceedingly helpful. That has been a pleasure for a neophyte like myself. As I have told others on here (Mark Yacavone) I will quietly observe, ask a few questions and try not to be bothersome.

Thanks Again Everyone,

Rick Thomason
GTOMayhem

nolongerracing · 01-17-2016, 08:30 PM

The same bearing that the big block Chryslers are using. Your new 6.1 will use the small block chevy bearing. Moma mopar already took care of that for you.

Quote:

Originally Posted by Larry Hill

Good article on Scott's B/SA car, man is that thing fast. Does anyone know what rod bearing to order that is for a crank pin of 2.200'' with a Pontiac rod housing bore of 2.375'' ? I got a neighbor that would love to save his OEM crank.

moparpilot · 01-17-2016, 09:14 PM

Quote:

Originally Posted by FSA1673

He is using a BBC rod, not a stock Pontiac rod. It is NHRA approved for a Pontiac Stocker.

how did that ever happen

JHeath · 01-17-2016, 10:04 PM

Because no manufacturer made a rod for that engine.

01-17-2016, 03:27 PM	#22
older racer Member Join Date: Aug 2010 Posts: 204 Likes: 2 Liked 57 Times in 23 Posts	Re: Lapping piston rings lol, I remember aircraft radial engines, had chrome cylinders and cast rings, bon ami was used to get them to quit pumping oil. they could use a lot of oil too . it was a last resort.

01-17-2016, 06:00 PM	#24
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,275 Likes: 25 Liked 510 Times in 200 Posts	Re: Lapping piston rings The BonAmi trick was a Pontiac approved fix attempt for oil burning engines. I recall hearing of it and to this day if I hear the name BonAmi that's exactly what I think of. Add some to your oil to get your rings to seat. __________________ Rich Biebel S/C 1479

01-17-2016, 06:54 PM	#25
impstocker Member Join Date: Dec 2008 Location: Wingdale, NY Posts: 302 Likes: 27 Liked 54 Times in 16 Posts	Re: Lapping piston rings Thanks Dwight, I think I might have bought my Shubeck lifters from you back in 2002 or around then? Anyway your right , you do learn by doing. My 65 Impala is coming out "better" than the 68 Impala I built. This time I was able to do much of the work myself. I will be with Jimmy Vignogna, my engine guy, as we go through the process building the 396 at his Machine Shop. Another drag racing friend, Pat Hennebery, said the first objective in building a drag car is to just get it down the track. Makes sense. Hope I don't hijack this thread. ! Sorry Will Lamprecht Div 1

01-17-2016, 10:04 PM	#30
JHeath Senior Member Join Date: Jul 2004 Location: Minneapolis Posts: 788 Likes: 2,890 Liked 370 Times in 102 Posts	Re: Lapping piston rings Because no manufacturer made a rod for that engine. __________________ Jerry Heath I/S '93 Cobra FS/J 2010 Mustang "Ebay CJ"