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chrysler oil pump shaft

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=48860
Printed Date: November-23-2024 at 1:39pm


Topic: chrysler oil pump shaft
Posted By: philip
Subject: chrysler oil pump shaft
Date Posted: June-15-2020 at 12:09pm
does anyone have a part number for the oil pump drive shaft on
a chrysler 273 reverse rotation engine

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philip thompson



Replies:
Posted By: 8122pbrainard
Date Posted: June-15-2020 at 12:48pm
Philip,
Do you have the RR gear you can swap to a new shaft?

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/diaries/details.asp?ID=1622" rel="nofollow -

54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
<


Posted By: philip
Date Posted: June-15-2020 at 1:16pm
yes i do and the gear is in good shape. philip

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philip thompson


Posted By: philip
Date Posted: June-15-2020 at 1:24pm
the one i have looks different than what i find online didnt know if the shafts were different

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philip thompson


Posted By: philip
Date Posted: June-16-2020 at 9:56pm
I am thinking about grinding the shaft down and making a custom bushing. So
No one knows where to get this part?

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philip thompson


Posted By: KENO
Date Posted: June-16-2020 at 10:20pm
How about a picture of what you're talking about?

Even if it's in a link to what you think is different, post a picture of something

If you're referring to the shaft without a gear on it, it should be the same as an automotive normal rotation shaft since the relationship between the camshaft, the oil pump drive gear and it's shaft and the oil pump is the same   


Posted By: phatsat67
Date Posted: June-16-2020 at 11:45pm
Mopars do not have the gears on the dizzy shafts. The gear and oil pump shaft are one part and the bottom of the dizzy has a flat insert that goes into the gear. I’ve never messed with a RR Mopar in that regard but I do know they have a collar installed to keep the gear/shaft from pushing up on the dizzy which also means the marine dizzy all have longer shafts. Joe will know more about the RR gears.


Posted By: KENO
Date Posted: June-17-2020 at 12:56am
Originally posted by phatsat67 phatsat67 wrote:

Mopars do not have the gears on the dizzy shafts. The gear and oil pump shaft are one part and the bottom of the dizzy has a flat insert that goes into the gear. I’ve never messed with a RR Mopar in that regard but I do know they have a collar installed to keep the gear/shaft from pushing up on the dizzy which also means the marine dizzy all have longer shafts. Joe will know more about the RR gears.


That's why a picture would be good, to help know what he's looking for.

There might even be an old thread about this collar and corresponding distributor shaft length. Click on the link below

http://www.correctcraftfan.com/forum/forum_posts.asp?TID=46861&title=newly-aquired-1968-correct-craft-project" rel="nofollow - link

But the oil pump shaft that the gear attaches to is the same length except the gear is cut for RR    Edit..............this sentence of mine isn't right , keep reading the thread


Posted By: 67 ski nat
Date Posted: June-17-2020 at 1:17am
Be careful with that /// gear. There hard to find.


Posted By: philip
Date Posted: June-17-2020 at 9:38am
i will get a picture and some measurements up today. philip

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philip thompson


Posted By: philip
Date Posted: June-17-2020 at 10:42am
here is the shaft measuring the over all length and subtracting the recess in the end
the shaft itself is 9.0 inches long the whole thing is 9.220
the worn spot is .006 under i an thinking about grinding the shaft od until
it cleans up and custom making a new bronze bushing. philip

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philip thompson


Posted By: philip
Date Posted: June-17-2020 at 11:09am
the melling shaft for a car engine part number is is-72 and it is 8.680 long.
no good. philip

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philip thompson


Posted By: KENO
Date Posted: June-17-2020 at 12:52pm
Originally posted by philip philip wrote:

here is the shaft measuring the over all length and subtracting the recess in the end
the shaft itself is 9.0 inches long the whole thing is 9.220
the worn spot is .006 under i an thinking about grinding the shaft od until
it cleans up and custom making a new bronze bushing. philip


In this case I figure a picture is worth a thousand words and roughly a half inch.

Your gear has the raised section on top that a normal rotation melling IS72 automotive one doesn't have. Probably about a half inch so the shaft needs to be correspondingly longer. Chrysler had 2 different length distributors and used a thrust spacer on the RR engines and I think the length differences are all related to that

You could call the place in the link who claim to have a complete inventory of 318 parts, a lot of which are the same as your 273 and maybe they can help out, otherwise your machining plan sounds good.

http://harrysmarinerepair.com/index.php?option=com_content&view=section&layout=blog&id=3&Itemid=14" rel="nofollow - link


Posted By: philip
Date Posted: June-17-2020 at 1:07pm
thanks for the link this thing has an electronic mallory dizzy in it

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philip thompson


Posted By: philip
Date Posted: June-17-2020 at 2:45pm
he had one. it aint cheap but i got it. philip

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philip thompson


Posted By: KENO
Date Posted: June-18-2020 at 8:23am
Originally posted by philip philip wrote:

he had one. it aint cheap but i got it. philip


I guess you got lucky, got a new shaft and found a place with a good parts supply for an old Chrysler marine engine

How about a picture of the distributor showing a measurement of the shaft length and a picture of the thrust collar too so it'll help the next guy that comes along with this type issue.


Posted By: philip
Date Posted: June-18-2020 at 10:23am
it is a used shaft but the guy said it was not worn. i will get some details up
later

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philip thompson


Posted By: 67 ski nat
Date Posted: June-18-2020 at 2:45pm
Nice job keno. I was not sure where to send him, forgot about Harry’s
Phillip, Harry can also Rebiuld your oem distributor


Posted By: philip
Date Posted: June-18-2020 at 2:54pm
its got an electronic mallory on it. philip

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philip thompson


Posted By: 67 ski nat
Date Posted: June-19-2020 at 11:05am
Yes. But good to have your oem in good condition for backup
If you have it


Posted By: 8122pbrainard
Date Posted: June-19-2020 at 12:14pm
Phillip,
Your a machinist so you should have just grabbed https://www.mcmaster.com/standard-steel-rods/hardened-multipurpose-4140-alloy-steel-rods-8/" rel="nofollow - a piece of 4140 and made one.

-------------
/diaries/details.asp?ID=1622" rel="nofollow -

54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
<


Posted By: philip
Date Posted: June-19-2020 at 6:07pm
what i should have done is ground the shaft down and made a custom bushing.
but at least i have a spare. i do not have the oe distributor. thanks to all for the help
it was not too bad 85.00 for the shaft with gear. philip

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philip thompson


Posted By: 8122pbrainard
Date Posted: June-19-2020 at 6:23pm
Originally posted by philip philip wrote:


it was not too bad 85.00 for the shaft with gear. philip

With the gear, I'd say that's a fair price.

-------------
/diaries/details.asp?ID=1622" rel="nofollow -

54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
<



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