36 roadster
Member
Posts: 24
Reg: 09-26-06
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10-23-06 02:12 PM - Post#1022574
Has anyone rebuilt a 216 using different (e.g. cap- sytle bearings) con rods? To rebuild my motor here (in Australia) I can only get the big ends re-metaled here, but I have heard of using a replacement con rod which has the later (cap) bearing.
Thanks
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 Gene_Schneider
Ultra Senior Member
Posts: 12333
Loc: Wisconsin..USA
Reg: 09-27-02
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Re: 216 con rods
10-23-06 04:44 PM - Post#1022575
In response to 36 roadster
Converting the babbited rods to insert bearings has become rather common over here.
I like the old babbited rods my self as they can be easily adjusted.The problem is most of the rebabited rods are of poor quality + if they are undersize they make the babbit thicker and thats not a positive.
The insert rods are available here from various sorces.Chevs of the 40's is one of the common ones.They are on line at www.chevsofthe40s.com....Note that the 1937-47 rods are wider than the 1948-53.
I have some new standard size rebabbited rods for 1937-47 but you probably will need under size if the engine is being rebuilt and crankshaft turned.
| ChevGene
1934 Master sedan
1939 Master DeLuxe Town Sedan
1950 Styline DeLuxe Power Glide
1957 Nomad 283 PG
1963 Corvair Convertible |
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36 roadster
Member
Posts: 24
Reg: 09-26-06
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Re: 216 con rods
10-23-06 05:48 PM - Post#1022576
In response to Gene_Schneider
Can you tell what year the motor is from the pistons?
I have taken apart the original 37 motor, and another spare motor, and the pistons on the 19? motor have an extra oil scraper below the gudgeon pin. Everything else looks the same.
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Royer
Needs to Get Out More Member
Posts: 11411
Loc: Bloomfield Hills, Michiga...
Reg: 09-25-01
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Re: 216 con rods
10-24-06 03:14 AM - Post#1022577
In response to 36 roadster
I'm not aware of any Chevy 216 engines that originally used a 4-Ring piston such as you describe. This doesn't mean that there might not have been some used outside North America though, and of course the pistons could well have been installed by some rebuilder in the past.
Royer
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Gene_Schneider
Ultra Senior Member
Posts: 12333
Loc: Wisconsin..USA
Reg: 09-27-02
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Re: 216 con rods
10-24-06 09:44 AM - Post#1022578
In response to 36 roadster
1937 was the first year for the 216 engine.All 216 engines had cast iron pistons with a dome top.Its common to find engines that were rebuilt years ago and pistons changed to aluminum...but should be of the domed type.All chevrolets had 3 rings, all above the pins.You could have off brand pistons in that engine.The pistons were the same from 1937-40.The 1941 and up engines had flat top pistons.Other than that they looked like 1937 pistons.The 1937-39 engines had an exposed oil distributor valve on the left side of the engine,low on the side ,about in the center behind the exhaust pipe.The valver is about 2 inches long and an inch or so in diameter.Its held to the block by 2 bolts.The 1940 and up engines had a pressed steel plate in this location.-about 2" long and held on by 3 slotted screws.
On the right side of the engine the 1937 had the oil dip stick to the front of the ignition distributor.On the 1938 and up its to the rear of the distributor.The engine number was stamped into a little raised pad cast into the block that was located next to the fuel pump.1938 and up had it on a ledge behind the distributor and dip stick..The 1937-40 has one hole behind the water pump (water passage)-the 1941 and up has 2 holes.The 1937-39 dose not have a rear main bearing oil seal -the 1940 and up has a rope type seal.All of the 216 engines had 4 main bearings.The 207 engines, 1936 and prior had 3 main bearings.
Hope this helps.
| ChevGene
1934 Master sedan
1939 Master DeLuxe Town Sedan
1950 Styline DeLuxe Power Glide
1957 Nomad 283 PG
1963 Corvair Convertible |
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36 roadster
Member
Posts: 24
Reg: 09-26-06
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Re: 216 con rods
10-24-06 02:08 PM - Post#1022579
In response to Gene_Schneider
Looks like I have a rebuilt 1937 engine. But one thing puzzles me- no rear main oil seal? Does it have a slinger or something else (I haven't pulled the crank out yet). Whatever It had back there is no more, becuase of the oil leaks present. I had a look at the con rods as mentioned earlier in this post, but a very expensive exercise once landed over here. I thought maybe someone has used a similar rod from another make which happened to fit. Sometimes you can be lucky- like the fuel pump for instance,
we have a very common 6 cylinder made by holden from 1964-1981, the pump bolts straight into the stovebolt, and they are readily available.
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Gene_Schneider
Ultra Senior Member
Posts: 12333
Loc: Wisconsin..USA
Reg: 09-27-02
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Re: 216 con rods
10-24-06 04:07 PM - Post#1022580
In response to 36 roadster
I know of no other rods that will fit.
The slinger is built into the crankshaft.There is an oil return hole in the main bearing cap.When properly put to gether they do not leak.When worn out they tend to leak.Important to have the bearing fit at the correct clearence.
My '34 and '39 may leave a spot of oil the size of our 25 cent piece when parked after a long high spped drive.The engies commonly have some oil seepage around various gaskets.
The fuel pump used the same bolt pattern and lever type from 1937-62-216-235 and 261 engines.Seeing the Holden engine was designed during this time is probably the reason for the same pumps.I doubt if there is anything else that would interchange between a Holden and any chevrolet 6 Cyl engine.The Holden engine was more modern.
I would suspect that I would have the present rods rebabbited (metaled) if I were in your location.If good babbit is used they will last many miles if kept properly adjusted.
| ChevGene
1934 Master sedan
1939 Master DeLuxe Town Sedan
1950 Styline DeLuxe Power Glide
1957 Nomad 283 PG
1963 Corvair Convertible |
|
sloper
Member
Posts: 116
Loc: Australia
Reg: 02-24-05
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Re: 216 con rods
10-25-06 12:52 PM - Post#1022581
In response to Gene_Schneider
The distibuter used in the Holden grey motor will also fit the 216, it can be a Bosch or AC delco.
Its scaled down version of the 216 with a full presure oil system.
l am sticking with the original babit bearing on the motor for the 39, there are people her who can remetal them.
There are also some NOS rods and pitons kicking around sometimes.
regards Sloper
A Garage Full of Toys,
57 Chev 210 Wagon,
1940 Chev Sloper Coupe,
HDT Brock Grp3,
HG Holden Premier, l fix it l pay for it therefore l own it.
LJ GTR Torana
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