Anybody have a listing for 1539644 chrome rings? Can't find them in parts book, they are in Book F, but can't find what size they are???
Bo
Bo
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Bo -
Ahh, didn't know anyone used chrome rings any longer..!
Sorry, can't help.
Mike -
My notes say V8 standard 259 289Milt
1947 Champion (owned since 1967)
1961 Hawk 4-speed
1967 Avanti
1961 Lark 2 door
1988 Avanti Convertible
Member of SDC since 1973Comment
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So what ARE you using Mike, Plain-O Iron, Moly or some kind of Gapless made of what?Originally posted by Mike Van Veghten View PostStudeRich
Second Generation Stude Driver,
Proud '54 Starliner Owner
SDC Member Since 1967Comment
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I've been using moly rings when I can get them for years, but they are hard to find so I've been using iron rings with good results. I installed chrome rings in the engine in my 62 Hawk years ago and it uses about a quart of oil in a thousand miles which isn't a concern for me, but some people would complain about it. I've gotten good results with the plain Hastings rings in the engines I've done recently. No oil consumption, no smoke and no complaints. Most Studebaker engines are no longer in every day service so I don't believe ring life is a big issue. Bud
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Milt,Originally posted by unclemiltie View Post
Parts book lists 1539645 as Std. type 98 with chrome 1st ring???
BoBoComment
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Use them all the time. Last longer then iron, easier to seat then moly and cheaper. Once they are seated, no blow by and no burning oil. So, what's the point of your post, if you have nothing to contribute, except lack of knowledge???Originally posted by Mike Van Veghten View Post
BoBoComment
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Bo,
The March, 1958 Book F shows "535911 use 1539644", unfortunately I couldn't find a listing for 535911 in any parts books either.
As you know Studebaker listed some piston ring sets as "AC" parts numbers, some as "SP" parts numbers and as above some as regular parts numbers. How these all relate is a mystery to me.
DanDan Peterson
Montpelier, VT
1960 Lark V-8 Convertible
1960 Lark V-8 Convertible (parts car)Comment
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BoComment
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StudeRich -
Yes. To my way of thinking, no matter if normally aspirated, or pressurized, or nitrus, "seal" the cylinders..!
I've used Total Seal rings on all of my engines for many years. Great sealing right away, last a long time without increasing the leakdown rate much.
Bo -
I don't think chrome rings are easier than (thAn) moly rings. Both materials are hard, but modern moly rings have been lapped to seal almost instantly. Plus the porosity of the moly helps hold oil, that "also" helps seal the cylinder MUCH better than chrome does. Before using Total Seal rings, I never had moly rings NOT seal within a few hundred miles...as in great leakdown numbers.
We put chrome rings in a 32 roadster (flat head) for the lakes/Bonneville, and had the damndest time getting them to fully seal. Wasn't my car, so the owner picked the chrome. After about 3 or 4 trips to the lakes, we put moly rings in it, the leakdown numbers came right up after the first outing.
So...yea, leave the chrome on the shelf..!
MikeComment
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I can appreciate that you've had no problems using moly rings and think the world of them. However, this fact has nothing to do with the point of your post, since you have no knowledge of the question asked.Originally posted by Mike Van Veghten View Post
On the other hand, the few times we've tried using moly rings, nothing but trouble. So, as the fella says, "everyone has different experiences".
So...yea, leave the moly at the parts store..!!
Oh, yea, if you have some original Studebaker oversize chrome ring sets on the shelf, and since they are no good, and no body uses them anymore, how about selling them to me for... say $5.00 set. After all, "One mans junk is another mans treasure"....
So, how about we drop the side show, and if anyone can help find a reference for and identify 1539644 chrome rings I'd sure appreciate it.
BoLast edited by Bo Markham; 01-08-2020, 05:29 AM.BoComment
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I found 1539644 in the "Book F" March 1, 1961, Studebaker Parts and Accessories Price Book, it of course only lists prices and "Accessory" applications.
About all that tells us other than it WAS available in 1961, is that the listing has a @ sign which means: "Price change and/or Part Substitution."
UPDATE: after some more "Sleuthing", I have a total Guess that this Number is a "USE" for 536815 which is a '55 to '58 All Stude. V8's, Piston Ring set in .040 Oversize.
One clue is, the 1539645 is the Std. Size V8 Ring Set for same, but in the '55-'58 Listing there is no 1539644 among the 1539xxx Series, only 645=Std./646 =.020/647=.030
AND NO .040!
So at that TIME, the 536815 .040 had not yet been Sub'd. to 1539644. Maybe someone's Later Book "F" would give us the answer.
I cannot at this time say: Yea or Nay, but it is a Start.
Also, the 5368xx Series, has a Symbol noted that means: "Type with Chrome Plated Top Ring".
The 15396xx Series Note says: "Type 98 Chrome Plated Top Ring".
Any Metallurgists here?
Last edited by StudeRich; 01-10-2020, 04:06 PM.StudeRich
Second Generation Stude Driver,
Proud '54 Starliner Owner
SDC Member Since 1967Comment
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Richard,Originally posted by StudeRich View Post
Thanks for confirming the listing in other "F" books. I'm wondering if they might have shown up in a Service Bulletin?
BoBoComment
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Richard,
See the logic of your thoughts. Dan pointed out that 1539644 is the superceded number for 535911. Neither number has been located in a parts book. I've not found a connection between these numbers and 536815, but will continue to look.
Thank you for your insight.
BoBoComment
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