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Oil Slingers required? #67249
06/04/08 07:47 AM
06/04/08 07:47 AM
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Snowing in the north!
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Dart 340 Offline OP
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My 340 did not have an oil slinger on it when I tore it down. It was in a junk box when I bought the car.
Are these required? I think all they really do is help keep oil off the front seal and get a little more lube on the chain dont they?

Should be enough room with a double roller they can
still be used correct?

Re: Oil Slingers required? [Re: Dart 340] #67250
06/04/08 07:50 AM
06/04/08 07:50 AM
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NY usa
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540challenger Offline
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The oil slinger is not required, personally i like to use it. as far as the double roller

Re: Oil Slingers required? [Re: Dart 340] #67251
06/04/08 07:50 AM
06/04/08 07:50 AM
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Posts: 21,132
Niles , Ohio
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therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
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Niles , Ohio
They are not needed.Ive torn stock motors apart that had and didnt have them.A double roller will fit with it.Ive got 2 running them a BB and a SB.Ive even got a gear drive running with one.Rocky


Chrysler Firepower
Re: Oil Slingers required? [Re: therocks] #67252
06/04/08 07:56 AM
06/04/08 07:56 AM
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Snowing in the north!
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Dart 340 Offline OP
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Thanks for the info. I ended up getting a new one from Mopar as I had felt they were on there for a reason.... I had no way to check clearance with the double roller but assumed it should fit.

THe guy I bought it from did a few hack jobs. Like the undersize key hey used to hold the fuel pump eccentric to the cam......... yea, bit difference between a 5/32 wide key and 3/16 key. Funny a small
thing like that can take the whole motor down.....

Re: Oil Slingers required? [Re: Dart 340] #67253
06/04/08 09:35 AM
06/04/08 09:35 AM
Joined: Aug 2006
Posts: 2,568
God's Country Maryland
GODSCOUNTRY340 Offline
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Here we go again. PLEASE look very closely at this picture! There's a reason the slinger is in perfect alignment with the fuel pump eccentric. It keeps oil on there to keep the fuel pump arm from grinding away. There are a lot of members on here that say they're not needed, the picture proves otherwise. The fuel pump arm has constant spring pressure pressing on the eccentric, that's steel to steel contact under pressure, there needs to be plenty of oil there to survive. Chrysler knew this and put the slinger on there. RUN THE SLINGER !!!

4466842-DSC04207.JPG (1232 downloads)

I love the smell of Deer guts in the morning, it smells like... VICTORY!
Re: Oil Slingers required? [Re: GODSCOUNTRY340] #67254
06/04/08 10:07 AM
06/04/08 10:07 AM
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Posts: 1,195
Snowing in the north!
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Dart 340 Offline OP
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Wait, why is yours facing the wrong way??

Just kidding. No I agree with you. Plus the eccentric is hardened. Once those things start
getting any deformations on the surface they can
tear a pump arm up in no time. The only thing I
question is in the service manual they talk about
keeping oil off the seal..... kinda thing thats secondary.

Re: Oil Slingers required? [Re: Dart 340] #67255
06/04/08 10:12 AM
06/04/08 10:12 AM
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md
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mopars4ever Offline
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I always use them too. Many have not. Mike

Re: Oil Slingers required? [Re: Dart 340] #67256
06/04/08 10:21 AM
06/04/08 10:21 AM
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Posts: 25,200
Upper Midwest
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MoparforLife Offline
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Quote:


Wait, why is yours facing the wrong way??

Just kidding. No I agree with you. Plus the eccentric is hardened. Once those things start
getting any deformations on the surface they can
tear a pump arm up in no time. The only thing I
question is in the service manual they talk about
keeping oil off the seal..... kinda thing thats secondary.



The main purpose of the slinger is to keep excess oil off the cover seal to help prevent a leak. As for oiling the fuel pump accentric that thin piece of tin will slice through the oil before it will throw it, it is to smooth a metal to throw anything. There is more oil splashing off the timing chain and sprockets than is needed to put a nice coating of oil on everything there. As for needing them there are problably as many OEM engines out there without them as with them and not a nickels worth of wear difference. To each their own.

Re: Oil Slingers required? [Re: Dart 340] #67257
06/04/08 10:23 AM
06/04/08 10:23 AM
Joined: Aug 2006
Posts: 2,568
God's Country Maryland
GODSCOUNTRY340 Offline
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It's not facing the wrong way, if it's turned around the curvature will hit the chain. This is the way it goes. This is a 1969 340 engine. If you would mock up a crank, timing gear, slinger, timing cover and balancer you'd notice there's an inch gap between the slinger and the seal. Hardly close enough to keep oil off the seal, no, the slinger's job is to sling oil onto the eccentric and timing chain & gears.

4466963-DSC04209.JPG (645 downloads)

I love the smell of Deer guts in the morning, it smells like... VICTORY!
Re: Oil Slingers required? [Re: GODSCOUNTRY340] #67258
06/04/08 10:26 AM
06/04/08 10:26 AM
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Posts: 13,726
md
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mopars4ever Offline
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Quote:

It's not facing the wrong way, if it's turned around the curvature will hit the chain.


I believe he was just kidding. Mike

Re: Oil Slingers required? [Re: GODSCOUNTRY340] #67259
06/04/08 10:28 AM
06/04/08 10:28 AM
Joined: Nov 2007
Posts: 21,928
Kirkland, Washington
Pacnorthcuda Offline
Too Many Posts
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Quote:

It's not facing the wrong way, if it's turned around the curvature will hit the chain. This is the way it goes. This is a 1969 340 engine. If you would mock up a crank, timing gear, slinger, timing cover and balancer you'd notice there's an inch gap between the slinger and the seal. Hardly close enough to keep oil off the seal, no, the slinger's job is to sling oil onto the eccentric and timing chain & gears.




If thats true then why did mopar ALSO put the slinger on big blocks....whose fuel pump eccentrics are part of the cam and certainly NOT oiled by the slinger??? Hmmmm??????

Re: Oil Slingers required? [Re: Pacnorthcuda] #67260
06/04/08 10:31 AM
06/04/08 10:31 AM
Joined: Aug 2005
Posts: 11,543
chicagoland,usa
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buildanother Offline
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chicagoland,usa
Uh, oh....

Re: Oil Slingers required? [Re: Pacnorthcuda] #67261
06/04/08 10:32 AM
06/04/08 10:32 AM
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Posts: 2,568
God's Country Maryland
GODSCOUNTRY340 Offline
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To oil the timing chain & gears. Big blocks didn't have a dripper like the small blocks, there's no cam plate behind the cam on a BB.


I love the smell of Deer guts in the morning, it smells like... VICTORY!
Re: Oil Slingers required? [Re: GODSCOUNTRY340] #67262
06/04/08 10:42 AM
06/04/08 10:42 AM
Joined: Nov 2007
Posts: 21,928
Kirkland, Washington
Pacnorthcuda Offline
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Quote:

To oil the timing chain & gears. Big blocks didn't have a dripper like the small blocks, there's no cam plate behind the cam on a BB.




Actually the function of the slinger is to BOTH keep excessive oil away from the front seal (it was a method of minimizing warranty issues--oil leaks) AND to sling the excess oil onto the chain where it certainly would do no harm, but most likely not necessary. We've certainly seen engines run fine without them, although I would agree that a small block has the aditional reason to run one due to the fuel pump eccentric's location. A big block is less dependant on them.

BTW...sprockets, not gears.

Re: Oil Slingers required? [Re: GODSCOUNTRY340] #67263
06/04/08 10:43 AM
06/04/08 10:43 AM
Joined: Aug 2006
Posts: 2,568
God's Country Maryland
GODSCOUNTRY340 Offline
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Before the advent of aluminum gears with nylon teeth Mopars were built with steel gears and steel timing chains requiring lots of oil. As for that flat piece of metal not being able to get any oil on it to throw, just quickly dip a razor blade in oil and see how much oil it collects, plus if it throws no oil, it won't throw oil away from the seal as you state. Kind of disproving your own theory.


I love the smell of Deer guts in the morning, it smells like... VICTORY!
Re: Oil Slingers required? [Re: GODSCOUNTRY340] #67264
06/04/08 10:51 AM
06/04/08 10:51 AM
Joined: Nov 2007
Posts: 21,928
Kirkland, Washington
Pacnorthcuda Offline
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Oh, and something else to think about....just where does the slinger get ITS oil??? From a dry crank sprocket? I don't think so! The timing chain crank sprocket gets fed oil from the block passages, which in turn get the chain and cam sprocket lubed very quickly. If the timing chain didn't get lubed from the block, the slinger would be dry and have nothing to sling!

Re: Oil Slingers required? [Re: Dart 340] #67265
06/04/08 10:53 AM
06/04/08 10:53 AM
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Posts: 5,118
Alone in the darkness
gamagoat6x6 Offline
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Alone in the darkness
Our engines are some of the best designs ever and I don`t waste my time thinking I know better than the Chrysler engineers who spent years perfecting them.
i won`t assemble an engine without the slinger.


`02 RAM2500 SPORT V10 4x4 `06 GMC sierra NO cars
Re: Oil Slingers required? [Re: gamagoat6x6] #67266
06/04/08 10:56 AM
06/04/08 10:56 AM
Joined: Apr 2008
Posts: 1,195
Snowing in the north!
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Dart 340 Offline OP
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Snowing in the north!
Quote:

Our engines are some of the best designs ever and I don`t waste my time thinking I know better than the Chrysler engineers who spent years perfecting them.
i won`t assemble an engine without the slinger.




Oh boy, I didn't mean to start this kind of slinging
(pun intended) I was just looking for some feedback. As for chrysler engineers, well my father had 32 years there and my brother has 20 in now. Yes they do a good job but I could tell stories........

Re: Oil Slingers required? [Re: gamagoat6x6] #67267
06/04/08 11:01 AM
06/04/08 11:01 AM
Joined: Jul 2007
Posts: 1,526
North Carolina
cjskotni Offline
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I have read in several manuals that they are required. Needless to say, I wouldn't leave it out to save 10 or 15$.

I would think the engine COULD run without it but it is sub-optimal...like running an engine without a thermostat...sure it will run but for how long?

I agree with gamagoat, there is a reason the engineers at Chrysler added them. It would be presumptuous to think you know more than they do even if you can "get by" without it.

Re: Oil Slingers required? [Re: gamagoat6x6] #67268
06/04/08 11:02 AM
06/04/08 11:02 AM
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Upper Midwest
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MoparforLife Offline
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Quote:

Our engines are some of the best designs ever and I don`t waste my time thinking I know better than the Chrysler engineers who spent years perfecting them.
i won`t assemble an engine without the slinger.



Why not just as many came down the line without them as they did with them. They were hit and miss from teh factory too.

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