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Fishstix2
Joined: 29 Aug 2019
Posts: 44
City/Region: Cape Coral
State or Province: FL
C-Dory Year: 2006
C-Dory Model: 255 Tomcat
Vessel Name: PiraC
Photos: PiraC
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 Posted: Fri Mar 11, 2022 2:12 pm Post subject: Honda 150 Oil in Air Box |
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Hello all, have had something that has just come up on our Tomcat Honda 150 port motor. Found that there is oil in the air box, so there is a drain tube at the bottom of the air box and I have some oil coming out of tube. A little more when tilted up. My mechanic believes this is from blow by from cylinders but he’s not sure. Has anyone experienced this issue with Honda motors or have a theory?
Best
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Rick and Anita
PiraC
TomCat 255 |
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tsturm
Joined: 01 Nov 2003
Posts: 1165
City/Region: Soldotna
State or Province: AK
C-Dory Year: 2003
C-Dory Model: 25 Cruiser
Vessel Name: JMR TOO
Photos: JMR-TOO
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| Posted: Fri Mar 11, 2022 2:31 pm Post subject: Re: Honda 150 Oil in Air Box |
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| Fishstix2 wrote: | Hello all, have had something that has just come up on our Tomcat Honda 150 port motor. Found that there is oil in the air box, so there is a drain tube at the bottom of the air box and I have some oil coming out of tube. A little more when tilted up. My mechanic believes this is from blow by from cylinders but he’s not sure. Has anyone experienced this issue with Honda motors or have a theory?
Best |
If you didn't poor it in the air box it must be blow by. Wrong prop (lugging) or mostly low speed operation can/will cause this.
Go get some Yamaha Ring Free and follow directions. THEN Change your oil & keep an eye on it.
Good luck & let us know.  |
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Fishstix2
Joined: 29 Aug 2019
Posts: 44
City/Region: Cape Coral
State or Province: FL
C-Dory Year: 2006
C-Dory Model: 255 Tomcat
Vessel Name: PiraC
Photos: PiraC
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| Posted: Sat Mar 12, 2022 9:18 am Post subject: |
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| Tsturm, thank you for your response, it’s interesting you mention the wrong prop can cause. So, when I bought the boat the previous owner had changed the 3 blade Honda props with 4 blades. I liked the 4 due to lift out of hole and on plane at lower rpm’s. But, I had heard that 150’s struggle with the heavier 4 blades? Wondering if I should put the 3 blades back on and check results? |
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tsturm
Joined: 01 Nov 2003
Posts: 1165
City/Region: Soldotna
State or Province: AK
C-Dory Year: 2003
C-Dory Model: 25 Cruiser
Vessel Name: JMR TOO
Photos: JMR-TOO
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| Posted: Sat Mar 12, 2022 9:51 am Post subject: |
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| Fishstix2 wrote: | | Tsturm, thank you for your response, it’s interesting you mention the wrong prop can cause. So, when I bought the boat the previous owner had changed the 3 blade Honda props with 4 blades. I liked the 4 due to lift out of hole and on plane at lower rpm’s. But, I had heard that 150’s struggle with the heavier 4 blades? Wondering if I should put the 3 blades back on and check results? |
As long as the prop chosen will make the suggested wide open throttle rpm (whatever the manual says 6000 rpm?) it's the correct one.
My Suzi is 6200rpm. |
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Barry Rietz
Joined: 21 Jun 2006
Posts: 412
City/Region: Sierra Vista
State or Province: AZ
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BTDT
Joined: 07 Jan 2011
Posts: 322
City/Region: Grand Lake Oklahoma
State or Province: OK
C-Dory Year: 2007
C-Dory Model: 255 Tomcat
Vessel Name: C- Lark Wine Down
Photos: C-Lark
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| Posted: Sat Mar 12, 2022 4:56 pm Post subject: |
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How many hours on the 150?
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John & Vicki Clark
C-Lark Wine Down
Tomcat 255 |
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T.R. Bauer
Joined: 17 Nov 2007
Posts: 1808
City/Region: Wasilla
State or Province: AK
C-Dory Year: 1993
C-Dory Model: 22 Cruiser
Vessel Name: C-Whisperer
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| Posted: Sat Mar 12, 2022 8:53 pm Post subject: |
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| I'm reluctant on the blow by theory - unless your boat is blowing out clouds of light blue smoke most of the time. What does your PCV chamber look like? If it's full of oil as well, then ok I'm buying it. If it's not, then you can rule blow by out and start searching somewhere else. |
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Fishstix2
Joined: 29 Aug 2019
Posts: 44
City/Region: Cape Coral
State or Province: FL
C-Dory Year: 2006
C-Dory Model: 255 Tomcat
Vessel Name: PiraC
Photos: PiraC
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| Posted: Sun Mar 13, 2022 11:52 am Post subject: |
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| BTDT wrote: | | How many hours on the 150? |
They have 1100 on both motors |
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