The Green Industry's Resource Center

Thread Tools   Display Modes
Old 03-28-2005, 12:58 AM
rbig rbig is offline
LawnSite Member
Join Date: Aug 2004
Location: pensacola fl
Posts: 112
Great info. I think you have a really good point. I've been using automotive plugs.
Reply With Quote
Old 04-02-2005, 07:25 PM
Mr Dane's Avatar
Mr Dane Mr Dane is offline
LawnSite Member
Join Date: May 2004
Location: elkhart indiana
Posts: 27
spark plugs

Stay Away From Autolite Spark Plugs !!!!!!!!!!!!!!!! They Are Not Made For The Heat Have Been In Several Arguments About This But When I Use About 500 To 700 Spark Plugs A Year I Know Which Ones Are Good And Which Ones Are Bad
Reply With Quote
Old 04-03-2005, 05:07 PM
Oldtimer Oldtimer is offline
LawnSite Bronze Member
Join Date: Apr 2000
Location: Pensacola, Florida
Posts: 1,436
For the last 5 years we have been using Bosch both in the shop and over the counter. We have had the best service from Bosch. They are a bid pricey but we don't get spark plug complaints any more.
Reply With Quote
Old 04-05-2005, 01:09 AM
fixer67's Avatar
fixer67 fixer67 is offline
LawnSite Silver Member
Join Date: Apr 2004
Location: Tryon NC
Posts: 2,155
Are the plugs the right heat range? Are the engines being ran at full thottle when being used. Trying to mow with the engine at less than full thottle will foul plugs quick. I had a man that fouled out plugs in his rider every week. He was trying to cut at half thottle because he did not want to throw the grass all over the place and he also though the mower would last him longer if he ran it at "idle" while mowing. Clogged air filters will foul plugs as well. You say the plug looks good but will not fire, this may be what is called "carbon tracking". Carbon builds up a thin film and causes a track from the tip the threads and shorts out the plug. Carbon tracking is a sign that the plug is too cold and you need to use the next higher heat range.
Reply With Quote
Old 05-03-2005, 12:07 AM
LawnSite Member
Join Date: Jan 2004
Location: murfreesboro TN
Posts: 49
this thread just helped me out....thanks,ive been using autolite on my kaw engine.every time it wouldnt start i just replaced the spark plug.gets annoying doing it every other week.ill try a better spark plug and see what happens.also ill check my oil to see if gas is in it....
Reply With Quote
Old 05-03-2005, 10:22 AM
blue_steel2 blue_steel2 is offline
LawnSite Member
Join Date: Jul 2003
Location: NJ
Posts: 19
I agree with Mr Dane. I had Autolites in a Ford Escort around 1990 (I realize we are talking about mower engines, but I had a nasty flashback when I saw Mr Dane's post). The engine began to run rough and I pulled the plugs. The ceramic insulators were gone on 2 out of 4 and the plugs were only a couple of months old. I pulled the head and the ceramic had broken a couple of valves and left dents in the head. My buddy resurfaced the head, replaced the valves and I put it back together and called Autolite. They wanted to see the plugs and sent me a package to return the parts ASAP. I was nervous about sending them the "evidence", but they sent me a letter a week later saying they X Rayed the plugs and the ceramic was found to be defective. Hairline cracks were in the ceramic and traced back to when they were manufactured. The heating / cooling cycles of the engine made the ceramic separate further until it fell into the cylinder. They asked me for an estimate of the time and expense for me to repair the car and sent me a decent sized check. Signing and cashing the check freed them from any responsibility that their product caused my problem. Since that time, I have always tried to stick with NGK or Champion, but NGK always seems to last longer. Also, Motorcraft brand is mfgd by Autolite.
Reply With Quote
Old 05-04-2005, 02:48 PM
STINGRAY310 STINGRAY310 is offline
LawnSite Member
Join Date: Mar 2005
Location: Kansas City, Missouri
Posts: 1
Originally Posted by Mower Man
Check oil for gas in it. When pulling over alot, and it doesn't start fuel can thin out the crankcase oil.
Use the sniff test. If suspected.....carefully away from any fuel source, using a match-lighter stroke the dip stick. Stroke---not too much, not too close.
If flame gets larger, or oil 'puff' ignites, there is fuel in the crankcase.
What should you do if you have gas in the oil, what is the cause of this and how do you prevent this and what damage could be cause by this?

Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Layout Style:

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Grand View Media
All times are GMT -4. The time now is 10:20 PM.

Page generated in 0.08248 seconds with 8 queries