Cliff.Coy
Joined: 03 Mar 2007
Posts: 46
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 Posted: Mon Jun 20, 2011 10:22 am Post subject: carb blues |
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Good morning Henry,
By what you're describing, the primer pump was left on continuously during start and the engine may have hydrolocked from too much fuel.
If you have the spark plug timing tool you can use it to determine if a hydrolock has occurred.
We use about a 10mm spacer threaded onto the tool and bring the #4 cylinder to TDC and make a mark on the scale.
Then install the tool into Cyls 5,6, & 7. respectively and measure the scale readings at TDC.
Any more than 6 "tic" marks variation from the #4 scale mark is cause for inspection.
Cliff
On Sat, Jun 18, 2011 at 18:36, HBaker <henry.baker(at)nf.sympatico.ca (henry.baker(at)nf.sympatico.ca)> wrote:
| Quote: | --> MurphyMoose-List message posted by: "HBaker" <henry.baker(at)nf.sympatico.ca (henry.baker(at)nf.sympatico.ca)>
Hi George
I started the engine today , It started fine, (I took Marks advice on start up). After I got it running I shut off the primer and the boost pump and she ran a little better .But the engine sounds like it has a loud heavy Knock in it. After shut down , gas was pouring out the carb for about 5 minutes, and when I went to leave, I opened the manifold drain cock and about a half liter of gas poured out, The inside of the exhaust and the bottom of the plane is black and wet from being real rich I guess, can adjusting the carb fix this? or is something else I should try???
Henry
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Currently building a Murphy Moose - any help would be appreciated.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=343402#343402
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Clifford Coy
Border Air Ltd.
629 Airport Rd.
Swanton, VT 05488
[url=tel:802-868-2822]802-868-2822[/url] TEL
[url=tel:802-868-4465]802-868-4465[/url] FAX
Skype: Cliff.Coy
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