red army 0 #1 Posted August 26, 2009 Hello all, I've been a lurker on the forum for a while and have my first question...I have a 753 (hope to post pics soon) that I'm using as a worker right now, but hope to spruce up a little this winter. Problem is the tractor seems to vapor lock after running for about 20-30 minutes. By vapor lock I mean sputter and die and not restart until after it cools down a bit. I'm open to any suggestions on how to fix this. Thanks! Share this post Link to post Share on other sites
whfan74 2,066 #2 Posted August 26, 2009 First of all......... If it is truly a vapor lock try opening the gas cap. If you hear a hiss when opening it then you should invest in a new gas cap which is fairly cheap. This doesn't happen a lot but doesn't mean that it can't happen. Make sure your fuel filter, tank, and fuel lines are clean. That's a start to get you headed in the right direction. Keep us posted. Share this post Link to post Share on other sites
VinsRJ 721 #3 Posted August 26, 2009 If the above mentioned gas cap / fuel system check doesn't cure the issue I would next look for spark during the hot period shut down. Sometimes the condensor will fail when it gets heat soaked. Almost forgot :thumbs2: Share this post Link to post Share on other sites
Save Old Iron 1,566 #4 Posted August 26, 2009 A partially collapsed or pinched fuel line that goes near the transaxle could become completely blocked once the trans axle heats up. If the fuel line contacts the trans axle and is surrounded by a collection of old grass and leaves, this could eventually overheat and collapse the fuel line or overheat and vaporize the fuel in the fuel lilne. Also, a quick visual check of the fuel screen present in most fuel tanks may reveal a screen almost blocked. After fuel sloshes about in the tank, the screen may become fully clogged by the additional debris now "kicked up" by moving the tractor of rough terrain. Good luck with the repair. Share this post Link to post Share on other sites
Save Old Iron 1,566 #5 Posted August 26, 2009 Just saw you have a 753 - so never mind about the comments above regarding the fuel line over the trans-axle. I have been spending too much time with the "modern day" c160 and 520h 's. The stuff I pulled out of the 520's tank makes me believe it was stored under a tree with the gas cap off for some time. Bugs and beetles and twigs .... oh my !! Share this post Link to post Share on other sites
red army 0 #6 Posted August 31, 2009 Okay, here's an update: I checked the fuel system and all seems to be in order, so I replaced the condenser and was able to mow all afternoon yesterday without any problems. Thanks to all who offered their thoughts! Share this post Link to post Share on other sites
TJ 175 #7 Posted August 31, 2009 Good to hear your back in business. :hide: Share this post Link to post Share on other sites
Coadster32 793 #8 Posted September 1, 2009 Good call Vin!! :scratchead: Share this post Link to post Share on other sites
VinsRJ 721 #9 Posted September 1, 2009 Glad to hear you're back in business. Share this post Link to post Share on other sites
