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jyanna 
Bronze Level
Joined: 31 Oct 2010
Location: Michigan
Points: 26
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 Topic: WD45 Bogs Down When Hot
Posted: 31 Oct 2010 at 11:57am |
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My WD45 starts and runs fine until it warms up. Then it bogs down and has no power. Just redid the carb and new plugs. There is coolant in the radiator. Guage shows temp OK. Water pump? Any ideas would be appreciated.
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Gatz in NE
Orange Level
Joined: 11 Sep 2009
Location: Lincoln, NE
Points: 1030
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Posted: 31 Oct 2010 at 1:55pm |
Coil ok ?
Check points gap too.
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dannyraddatz
Orange Level
Joined: 12 Sep 2009
Location: Plainfield, Ill
Points: 848
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Posted: 31 Oct 2010 at 2:19pm |
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I may be out there on this one but I had an old jeep that lost power. The valves had got out of adjustment and would loose power when it warmed up.
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Danny Raddatz
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kb
Bronze Level
Joined: 12 Oct 2010
Location: PA
Points: 8
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Posted: 31 Oct 2010 at 5:55pm |
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Our WD45 was doing that same exact thing this spring. The coil was breaking down and it was fairly easy to figure out as you couldn't touch it hot.
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DrAllis
Orange Level Access
Joined: 12 Sep 2009
Points: 19536
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Posted: 31 Oct 2010 at 7:00pm |
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If tappets have been adjusted too tight, they will do that. Adjust to .015" COLD intake and exhaust........don't go thru that .010" when hot B.S. ...do them all cold at .015" and KNOW they aren't too tight.
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DonBC
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Joined: 12 Sep 2009
Location: Courtenay, BC,
Points: 900
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Posted: 31 Oct 2010 at 7:05pm |
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I would check the coil first and see if it is hot after the engine begins to bog down.
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Jack of all trades, master of none
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jyanna
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Joined: 31 Oct 2010
Location: Michigan
Points: 26
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Posted: 03 Nov 2010 at 5:07am |
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Thanks so much for all your suggestions!
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dannyraddatz
Orange Level
Joined: 12 Sep 2009
Location: Plainfield, Ill
Points: 848
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Posted: 03 Nov 2010 at 5:19am |
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Did you find the problem?
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Danny Raddatz
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TedBuiskerN.IL.
Orange Level
Joined: 11 Sep 2009
Location: Davis, IL.
Points: 1959
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Posted: 03 Nov 2010 at 7:44am |
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I had that problem with an RC. Turned out to be a large build up of rust, scale, sludge, etc. around the rear of the back sleeve, so it wasn't cooling and would seize the piston. It was the original cast iron piston, so the clearances were pretty tight.
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Most problems can be solved with the proper application of high explosives.
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Bill Long
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Joined: 12 Sep 2009
Location: Bel Air, MD
Points: 4556
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Posted: 03 Nov 2010 at 8:17am |
You can try the condenser first. That is the cheapest fix but normally it is the coil.
Let us know how it goes.
Good Luck!
Bill Long
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