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Joined: Dec 2011
Posts: 422
Campfire Member
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OP
Campfire Member
Joined: Dec 2011
Posts: 422 |
I have an old (2006) Cub Cadet CC500 push mower that recently started tearing the starter cord out of my hand and, of course, won't start. The engine is a Briggs Model 1P70FUA. I have: 1) made sure the flywheel key is undamaged, 2) repeatedly adjusted the valves (cold; 0.004" intake, 0.006" exhaust), 3) reset the magneto gap with a business card (will try again with actual feeler gauge - business card is 0.012" and I read the spec as being 0.006" - 0.010"). Blade is properly indexed but I intend to put a new one on just in case. Compression is 120 psi. Has good spark and clean carburetor. 10W-30 oil changed seasonally. The parts guy at the place where I bought it says the engine diagram doesn't show a compression release on the camshaft like the larger engines have. I would appreciate any help from the campfire's brain trust and am already braced for comments that include "buy a new mower" . 
Last edited by Steven60; 10/24/22. Reason: word spacing
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Joined: Jan 2012
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Jan 2012
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Joined: Aug 2004
Posts: 69,674 Likes: 21
Campfire Kahuna
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Campfire Kahuna
Joined: Aug 2004
Posts: 69,674 Likes: 21 |
16 year old push mower.
Time for a new one.
It was a good run.
Molɔ̀ːn Labé Skýla!
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Joined: Apr 2011
Posts: 69,286 Likes: 14
Campfire Kahuna
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Campfire Kahuna
Joined: Apr 2011
Posts: 69,286 Likes: 14 |
16 year old push mower.
Time for a new one.
It was a good run. 👍🏻👍🏻👍🏻
"Allways speak the truth and you will never have to remember what you said before..." Sam Houston
Texans, "We say Grace, We Say Mam, If You Don't Like it, We Don't Give a Damn!"
~Molɔ̀ːn Labé Skýla~
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Joined: Jan 2005
Posts: 38,907 Likes: 8
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jan 2005
Posts: 38,907 Likes: 8 |
Not a real member - just an ordinary guy who appreciates being able to hang around and say something once in awhile.
Happily Trapped In the Past (Thanks, Joe)
Not only a less than minimally educated person, but stupid and out of touch as well.
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Joined: Feb 2013
Posts: 21,809 Likes: 8
Campfire Ranger
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Campfire Ranger
Joined: Feb 2013
Posts: 21,809 Likes: 8 |
I have an old (2006) Cub Cadet CC500 push mower that recently started tearing the starter cord out of my hand and, of course, won't start. The engine is a Briggs Model 1P70FUA. I have: 1) made sure the flywheel key is undamaged, 2) repeatedly adjusted the valves (cold; 0.004" intake, 0.006" exhaust), 3) reset the magneto gap with a business card (will try again with actual feeler gauge - business card is 0.012" and I read the spec as being 0.006" - 0.010"). Blade is properly indexed but I intend to put a new one on just in case. Compression is 120 psi. Has good spark and clean carburetor. 10W-30 oil changed seasonally. The parts guy at the place where I bought it says the engine diagram doesn't show a compression release on the camshaft like the larger engines have. I would appreciate any help from the campfire's brain trust and am already braced for comments that include "buy a new mower" . Pull cord pawls are binding ("tearing the starter cord out of my hand"). Won't start is bad fuel probably. Just a guess.
If you are not actively engaging EVERY enemy you encounter... you are allowing another to fight for you... and that is cowardice... plain and simple.
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Joined: Jan 2012
Posts: 148
Campfire Member
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Campfire Member
Joined: Jan 2012
Posts: 148 |
Some possibilities here: lawnmower forum
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Joined: Jan 2012
Posts: 67,193 Likes: 40
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2012
Posts: 67,193 Likes: 40 |
Lissen to this’n ^^^^^^ Dude is push mowin beast. Him and his wife. They mow all of the graveyards and grounds at the Church of Latter Day Saints with pusher mow-mows, like tandem mini combines. Live Action!!! 👍😱 They goan to heavin fo shizzle !!! Get a new $186 mower from walmart
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Joined: Dec 2005
Posts: 4,185
Campfire Tracker
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Campfire Tracker
Joined: Dec 2005
Posts: 4,185 |
If it won't fire with a shot of ether, send it.
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Joined: Jan 2012
Posts: 45,030 Likes: 26
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jan 2012
Posts: 45,030 Likes: 26 |
Lissen to this’n ^^^^^^ Dude is push mowin beast. Him and his wife. They mow all of the graveyards and grounds at the Church of Latter Day Saints Get a new $186 mower from walmart Church of LDS..🤦♂️🤦♂️🤣🤣🤣 I can get 3 maybe 4 yrs out of a mower. My back yard will kill a push mower. The decks,blade, wheels , wheel spindles, engine mounting bolts just go to schitt in the back yard. I hate mowing to begin with anyways. Always have... Season was done 2 weeks ago. Bullschit will be back last week of march 1st week of april again... 😡😡😡 🤣🤣🤣
Last edited by renegade50; 10/24/22.
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Joined: Jan 2012
Posts: 45,030 Likes: 26
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jan 2012
Posts: 45,030 Likes: 26 |
Consumer Reports fears a pushmower review from my back yard.
🤣🤣🤣
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Joined: Aug 2020
Posts: 1,889
Campfire Regular
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Campfire Regular
Joined: Aug 2020
Posts: 1,889 |
Renegade50 get some goats man. As far as OP goes, you've done more already than I ever would have for a push mower. No idea man
Romans 5:1
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Joined: Dec 2015
Posts: 102
Campfire Member
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Campfire Member
Joined: Dec 2015
Posts: 102 |
Have you checked for exhaust blockage? muffler innards rusting out and plugging up the works , nesting materials, carbon deposits on the spark arrestor screen, etc
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Joined: Jan 2012
Posts: 67,193 Likes: 40
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2012
Posts: 67,193 Likes: 40 |
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Joined: Jun 2019
Posts: 9,975 Likes: 8
Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2019
Posts: 9,975 Likes: 8 |
Do a compression test. It sounds like you've got enough carbon deposits that the fuel is Dieseling before the spark plug fires, trying to run the engine backwards. Compression pressure should be around 100 PSI, max. Severe carburetor flooding will do something similar- - - -liquid gasoline in the cylinder can't be compressed.
Ignorance can be fixed. Stupid is forever!
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Joined: May 2004
Posts: 2,817
Campfire Regular
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Campfire Regular
Joined: May 2004
Posts: 2,817 |
Does it pull ok with the plug out ? Sometimes the parts people are wrong. The mechanism that bumps a valve open for compression release is defective
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Joined: Jan 2012
Posts: 45,030 Likes: 26
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jan 2012
Posts: 45,030 Likes: 26 |
Yes.... No more post required... 😄😄😄
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Joined: Nov 2007
Posts: 47,179 Likes: 1
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2007
Posts: 47,179 Likes: 1 |
God bless Texas-----------------------
Old 300
I will remain what i am until the day I die- A HUNTER......Sitting Bull
Its not how you pick the booger..
but where you put it !!
Roger V Hunter
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Joined: Apr 2006
Posts: 9,562 Likes: 1
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2006
Posts: 9,562 Likes: 1 |
Any chance you're carb is leaking/pouring fuel into the cylinder slowly between uses creating hydraulic-lock?
Last edited by horse1; 10/24/22.
I can walk on water.......................but I do stagger a bit on alcohol.
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Joined: Dec 2019
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Campfire Tracker
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Campfire Tracker
Joined: Dec 2019
Posts: 3,039 Likes: 5 |
"Ain't got no gas in it."
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