Hockey390 Posted July 18, 2004 Report Share Posted July 18, 2004 Ok, well first off, my shee started out fine, but after riding slowly in line to get out to the dunes, she started to idle faster. I didnt think too much of it, but eventually one of my radiator hoses blew off... Ya, that sucks when your in the middle of the dunes and that happens. So anyways, I had someone get me a screwdriver and a bottle of water, reconnected everything, poured the water in, was riding... and BAM, happend again.. This also happend a few weeks ago when she was hot. Hose just blew right off.. Different spots each time, and I tightened them down as much as I could.. SO, my problems are... What would cause my hoses to blow off? Is there too much pressure building up? What types of things should I look at since she started to idle high. When I started it up it would idle fine a few seconds then bam, start going sky high.. Check my carb slides, fine. I'm thinking I have an air leak somewhere. But before I start looking for that, what else would cause that? The carb wasnt sticking at all.. Brand new 35mm single carb setup. So my first trip to the dunes ever was AWESOME, until my shee took a plunge... Quote Link to comment Share on other sites More sharing options...
frocashmoney24 Posted July 18, 2004 Report Share Posted July 18, 2004 damn everyones first times to the dunes are getting shot to hell, its def building pressure, are your vent hoses plugged? Quote Link to comment Share on other sites More sharing options...
Hockey390 Posted July 18, 2004 Author Report Share Posted July 18, 2004 are those the 2 black hoses that run to the back? Quote Link to comment Share on other sites More sharing options...
frocashmoney24 Posted July 18, 2004 Report Share Posted July 18, 2004 yup, they go to the overflow bottle Quote Link to comment Share on other sites More sharing options...
Hockey390 Posted July 18, 2004 Author Report Share Posted July 18, 2004 I thought that coulda been it, because the line coming from the radiator looked pinched.. BUT, there is plenty of coolant in the overflow... Quote Link to comment Share on other sites More sharing options...
sredish Posted July 18, 2004 Report Share Posted July 18, 2004 radiator cap could be bad, or maybe something kinked in the rad. Quote Link to comment Share on other sites More sharing options...
J.J. Posted July 18, 2004 Report Share Posted July 18, 2004 (edited) Maybe you're getting combustion pressure into the cooling system? Head-gasket leak maybe... Just a thought. Edited July 18, 2004 by J.J. Quote Link to comment Share on other sites More sharing options...
dlnoss Posted July 18, 2004 Report Share Posted July 18, 2004 (edited) I would think a blown head gasket or a plugged steam vent in the top of the head. Start it with the radiator cap removed and see if it bubbles. Edited July 19, 2004 by dlnoss Quote Link to comment Share on other sites More sharing options...
Cotton eyed Joe Posted July 18, 2004 Report Share Posted July 18, 2004 I would thing a blown head gasket or a plugged steam vent in the top of the head. Start it with the radiator cap removed and see if it bubbles. Yep. Also, check the steam purge hose to make sure your gas tank isn't pinching it off. I had a problem with this once. Quote Link to comment Share on other sites More sharing options...
Hockey390 Posted July 19, 2004 Author Report Share Posted July 19, 2004 I would thing a blown head gasket or a plugged steam vent in the top of the head. Start it with the radiator cap removed and see if it bubbles. Yep. Also, check the steam purge hose to make sure your gas tank isn't pinching it off. I had a problem with this once. Stan, I think you about nailed it.... I havent gotten a chance to work on her yet, was out of town till today. But I bet that hose is kinked under the gas tank. I pulled it tight so I could zip tie it to the frame, when I try and pull it up towards the radiator it wont move, and at the other end it cant go anywhere either... I am also going to try the head gasket theory. Would overheating cause it to rev higher? Or should I start looking for an air leak? When i say rev higher its not like WOT or anything...or when a carb is stuck a little open, but on a scale of 1 to 10, where 10 is WOT, and 1 is a standard idle... I would probably say she is at a 3. If that helps any... Quote Link to comment Share on other sites More sharing options...
SDD Posted July 20, 2004 Report Share Posted July 20, 2004 What brand of clear radiator hoses are you using? Quote Link to comment Share on other sites More sharing options...
Hockey390 Posted July 20, 2004 Author Report Share Posted July 20, 2004 some nylon braided ones I got at the hardware.. I think I might switch back to black, those never came off... probably unrelated, but if it works...why fix it. Quote Link to comment Share on other sites More sharing options...
DUNEDEMON Posted July 20, 2004 Report Share Posted July 20, 2004 some nylon braided ones I got at the hardware.. I think I might switch back to black, those never came off... probably unrelated, but if it works...why fix it. I would think this is your problem right there, that type of hose needs to be re tightened after the engine gets hot kind of like heat cycling for your hoses. I had this same exact problem with a subaru engine in a sand rail we were running on the dyno a month ago, as soon as it got hot it blew the lower hose off the radiator(on the dyno at about 4500 RPM - what a mess) "Heat cycle" the hoses a few times tightening each time or just switch back to the original hoses and I bet you'll be fine. Quote Link to comment Share on other sites More sharing options...
Justintoxicated Posted July 21, 2004 Report Share Posted July 21, 2004 have not had any problem with my clear hoses yet? THey were hard as shit to get on, and after you clamp them down with the clamps they should not pop off.....???? well maybe if something is wrong or you pinched one...they do seem to kink a bit easier when they are new. Quote Link to comment Share on other sites More sharing options...
SDD Posted July 21, 2004 Report Share Posted July 21, 2004 Justin certain types of that braided hose can't handle the heat that the coolant gets to. I had a friend blow the braided hose off his Banshee twice in one day. The next day at the dunes he switched to the stock hoses and no more problems. The plastic melts and the hose pops off. Quote Link to comment Share on other sites More sharing options...
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