Oberdorfer Raw Water pump on M35B

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Isabelle048
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Joined: 6/15/21
Posts: 1
Oberdorfer Raw Water pump on M35B

Hi there,

Just a quick sanity check,  has anybody actually installed and ran the Oberdorfer N202 on an M35B engine for any length of time?

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pkeyser
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Joined: 5/18/13
Posts: 679

We made the conversion to the N202  about 9 years ago. After 320 hours, we have no issues. That said, we did the recommended preventive maintenance at 300 hours. I replaced the shaft sleeve bearing, seals and impeller. There was no issue of water weapage prior to this work, but this preventative maintenance is suggested after 300 hours of use.
The carbon shaft bearing replacement is a bit of a pain if you don't have an arbor press to ensure the new bearing is being inserted perfectly straight. I used a block of wood and lots of gentle tapping with a light hammer..    

Paul & Wendy Keyser
"First Light"
Rye NH
2005 C36 MKII #2257
Wing, M35B

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Haro
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Joined: 11/7/14
Posts: 441

Ribin and Rye, please visit the website listed on my signature regarding OBERDORFER raw water pump.
http://mei1970.org/saillavie/Oberdorfer_Seals_Replacement
Visit this album
http://mei1970.org/saillavie/c36Album/index.php?album=Oberdorfer-Seals-R...
Yes, it works well. Many have switched to more reliable and easy to service OBERDORFER pump.
I use a steering wheel puller to remove and insert all 3 seals without breaking them.
PM me if I can answer any questions.

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