• This site contains eBay affiliate links for which Sea-Doo Forum may be compensated.

1995 GTX - loud bang - uh oh?

Status
Not open for further replies.

Aug

Member
Hi,
I have a 1995 GTX Seadoo. Here's the story behind my problem:

1. Last late summer, I had the carbs overhauled and cleaned by the Seadoo shop. When I got it back, I immediately replaced the old grey Tempo lines with brand new fuel line. All the last part of summer and into the fall it ran great.

2. I've ran it this spring from March up until now with no problems. Been running great. Yesterday, my friend happened to notice that one of the black fuel lines had a slight leak where it connects up to the carb inlet. This morning, I replaced that section of fuel hose with new clamps and such (there's a filter upstream of it). I started it up the driveway, turned on water, and let it run for 30 seconds to check for leaks at the new fuel line section. No leaks and the engine ran great. I even rev'ed it up a little. Turned off the water, let the engine run for a few seconds more, then shut it down.

3. Took it to the bay this afternoon and dropped it in the water...made sure drain plug was in. Started it up, and it started up right away with no delay (which is a little unusual). About 5 seconds of idle it gave a loud BANG. White smoke started whisking from the front exhaust tube, and the engine was idling rough and then died. Since I was only 50 feet from the dock, I started it up, and let it rough idle back to the dock and cut it off. In that 24 seconds, again white smoke from the tube and when the seat was removed, from the engine compartment.

4. Got it back home, and tried to hook up the flush water tube to try and give it a little flush. Started the engine, turned on the water, but the flush water didn't seem to come from the rear vent (came from below like it usually does). I shut everything down then.

What could this be, and I am in for a big repair bill?
 
I honestly don't know, maybe a hole in the mag. side piston? Let's start by getting compression readings, remove both spark plugs, ground the spark plug cable on the lugs mounted to the mag. cover. Take the readings on a cold engine, throttle open. 150psi is a fresh engine, 130-140 is O.K., and 120 or less indicates the engine will need a rebuild soon.

Lou
 
Could you have blown an exhaust hose causing the smoke. If the engine compartment fills with exhaust it will run bad if at all.
 
Thanks for the ideas. Tomorrow when it's daylight, I'm going to check for the integrity of all hoses and lines. If they're all good, I'll do a compression test.
 
Thanks to all for the advice...I looked real close inch by inch over the exhaust system. Found the blowout in the rubber hose in the rear that goes from port to starboard from the purple muffler to an elbow out the back. Looks like there's an oil line tap in right above this elbow. I wanted to at least get the fresh water flush done, so I did duct tape the rubber hose blowout some just to get the engine running for 20 seconds. :)

Looks to be a straightforward repair. Should it be as easy as taking off the hose this weekend and taking it to an auto parts store?
 
They are discontinued, you need to contact [MENTION=41828]Minnetonka4me[/MENTION] He can fix you up with a hose
 
Thanks for the info. Why yes, it appears to be a formed rubber hose...almost 2 inches in diameter. It's in the shape of a flattened "U", but turned upside down.
 
Just as a follow up - got the new exhaust hose and installed it (thanks Minnetonka4me)...she purrs like a kitten again.. Now that darn speedo sensor in the back....
 
Status
Not open for further replies.
Back
Top