Diesel Damage to gas engine - valves??

Posted by PaulG1 on April 06, 2005 at 22:24:13 from (64.57.108.124):

I suspect my valves are sticking on a Honda 13hp mower as a result of 25% diesel in the gas (ouch my mistake) and i ran about 1 gallon total polluted mix through the engine. It ran fine while burning the polluted mix but about 2 tanks later it all sudden developed a very pronounced miss. The simptoms are a miss at all rpm ranges and a black hue in the exhaust at the miss - almost like it is running with full choke on.

If sticky valves resulted is there a way to untick the valve - maybe pour Marvel mystery oil in the spark plug hole so that the cylinder head is full of Marvel and then let is sit for a week?

Also to add to my theory - do you think sticky valves would rendor symptons such as extremely rich condition? The miss is almost non-existent for the first minute then gets very pronounced as the engine warms up. I've been throught the carb 4 times and can find no defects or anything wrong at all - fuel delivery perfect - float valve shuts off nicely.

Thanks for the help - this ones got me stumped - but could it still be the carb?

Paul

Follow Ups:

• Re: Diesel Damage to gas engine - valves?? skipper 16:00:27 04/07/05 (0)
• Re: Diesel Damage to gas engine - valves?? RustyFarmall 09:43:42 04/07/05 (0)
• Re: Diesel Damage to gas engine - valves?? Jonboy 08:24:15 04/07/05 (0)
• Re: Diesel Damage to gas engine - valves?? skipper 06:12:41 04/07/05 (0)
• Re: Diesel Damage to gas engine - valves?? Joe (Wa) 22:37:12 04/06/05 (9)
  • Re: Diesel Damage to gas engine - valves?? Doyle Alley 08:02:05 04/07/05 (8)
    • Re: Diesel Damage to gas engine - valves?? Jay (ND) 10:05:12 04/07/05 (0)
    • Re: Diesel Damage to gas engine - valves?? PaulG! 08:48:35 04/07/05 (1)
      • Re: Diesel Damage to gas engine - valves?? dr.sportster 09:30:36 04/07/05 (0)
    • Re: Diesel Damage to gas engine - valves?? Puddly 08:41:27 04/07/05 (4)
      • Re: Diesel Damage to gas engine - valves?? PaulG1 08:51:10 04/07/05 (3)
        • Re: Diesel Damage to gas engine - valves?? Don L C 11:28:29 04/07/05 (2)
          • Re: Diesel Damage to gas engine - valves?? edchainsaw 20:11:50 04/07/05 (0)
          • Re: Diesel Damage to gas engine - valves?? edchainsaw 20:09:43 04/07/05 (0)

Post a Followup Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]