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Z134 oil pump woes

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William Fissell

03-09-2018 19:36:06

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Hi, All,

Wondering if theres a better fix. Rebuilding Z134. The motor had died on the PO when the oil pump impeller came apart. Right where that stupid screw is.

Tonight I was reassembling the oil pump using the excellent kit from this site and the replacement impeller cracked while I was pressing on the drive gear. Right at the stupid screw.

I will order another kit but surely theres a better way?



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William Fissell

03-11-2018 19:49:02

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 Re: Z134 oil pump woes in reply to William Fissell, 03-09-2018 19:36:06  
:) yup thats what I'll do with the next $90. I am more irked about that stupid tapped hole and screw. Thats where the gear broke that ruined this engine, and thats where the gear broke that I was replacing. Just seems idiotic.

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03-10-2018 05:21:37

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 Re: Z134 oil pump woes in reply to William Fissell, 03-09-2018 19:36:06  
When pressing the drive gear on MAKE SURE the SHAFT ONLY is supported at the pump gear end. I use a small nut as a spacer to stay away from the pump gear so it won't break.

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03-09-2018 22:53:34

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 Re: Z134 oil pump woes in reply to William Fissell, 03-09-2018 19:36:06  
Been too long since I did mine. However I did pack mine with vaseline to alleviate the possibility of cavitation upon start up.

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