 Stock Oil Pump Won't Fit, Any Ideas? |
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| 914Sixer |
 Jun 12 2016, 05:36 PM
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#1
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914 Guru  Group: Members Posts: 9,122 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region 
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I have the case buttoned up and torqued to spec for the 2056. The rotating assembly and the cam move like they should. I had a little trouble getting the oil pick up tube alignment but everything else is smooth. Next I dropped the drain sump cover and screen in. Moved on to put the taco plate and sender in. Up next was to install the oil pump, NOT happening (IMG:style_emoticons/default/headbang.gif) . So I look at everything and it looks ok, I don't see any to keep it from going in. I know it is a snug fit . I took the pump over to the wire wheel and evenly buffed around the pump housing 3 different times. Put some lube on the housing and the case, still no go. Case was line bored but it should not have made and difference in the oil pump area.
Keep buffing it down? |
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| jeffdon |
Jun 12 2016, 06:44 PM
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#2
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Senior Member Group: Members Posts: 1,094 Joined: 24-October 06 From: oakland, ca Member No.: 7,087 Region Association: None |
QUOTE(914Sixer @ Jun 12 2016, 04:36 PM)  I have the case buttoned up and torqued to spec for the 2056. The rotating assembly and the cam move like they should. I had a little trouble getting the oil pick up tube alignment but everything else is smooth. Next I dropped the drain sump cover and screen in. Moved on to put the taco plate and sender in. Up next was to install the oil pump, NOT happening (IMG:style_emoticons/default/headbang.gif) . So I look at everything and it looks ok, I don't see any to keep it from going in. I know it is a snug fit . I took the pump over to the wire wheel and evenly buffed around the pump housing 3 different times. Put some lube on the housing and the case, still no go. Case was line bored but it should not have made and difference in the oil pump area. Keep buffing it down? Stop buffing. Make sure the pump drive tang is slotting into the cam. Hell, make sure the pump is going in right side up. Try loosening the case bolts on either side of the pump. Do not force it, but it may take some gentler "persuasion" to fully seat. |
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| McMark |
Jun 12 2016, 06:50 PM
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#3
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
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| 914Sixer |
Jun 12 2016, 10:08 PM
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#4
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914 Guru Group: Members Posts: 9,122 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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This is not my 1st build. I have done about 15 engines. Pump is right side up and tang is lined up with camshaft. I will loosen up the case bolts tomorrow. I have never had to do that before.
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| 914_teener |
Jun 12 2016, 10:13 PM
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#5
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914 Guru Group: Members Posts: 5,264 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
QUOTE(914Sixer @ Jun 12 2016, 09:08 PM) This is not my 1st build. I have done about 15 engines. Pump is right side up and tang is lined up with camshaft. I will loosen up the case bolts tomorrow. I have never had to do that before. Cam thrust right? |
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| r_towle |
Jun 12 2016, 11:11 PM
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#6
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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It happens.
Did they mill the case halves? Otherwise, measure it and see if it will fit, then loosen the bolts. |
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| r_towle |
Jun 18 2016, 06:45 PM
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#7
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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And?
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| 914Sixer |
Jun 19 2016, 05:56 AM
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#8
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914 Guru Group: Members Posts: 9,122 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Waiting on case spliter for oil pump. Should be here tomorrow. Case would not budge. Did not want to mess up anything having spent $600 on having case machined.
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| wndsrfr |
Jun 19 2016, 06:22 AM
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#9
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Senior Member Group: Members Posts: 1,449 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region
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QUOTE(914Sixer @ Jun 19 2016, 03:56 AM) Waiting on case spliter for oil pump. Should be here tomorrow. Case would not budge. Did not want to mess up anything having spent $600 on having case machined. (IMG:style_emoticons/default/popcorn[1].gif) |
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