08-25-2016, 07:37 AM #1
I bought a 2004 SeaDoo GTX 185 SC for $600, it needs some work
I picked up a 2004 SeaDoo GTX 4 TEC 185 Supercharged yesterday for $600 without a trailer. The previous owner said his kid managed to get the engine to ingest water, then was able to restart it, it ran for a little bit and then seized. The ski is in pretty good condition with 108 hours, looks to have never been taken apart. I pulled the head and found the PTO piston was turned into aluminum nuggets, the rod is bent, head is missing an exhaust valve and is ruined from the repeated impact of fragments. I'm going to pull the block and see if the crank is ruined (probably), then decide on a plan to get this ski running again.
This is going to be my fall, winter, maybe spring project. I have other skis to ride so I'm not going to rush to complete it.
08-25-2016, 07:17 PM #2
08-25-2016, 07:19 PM #3
Pictures of the carnage. The head is destroyed, and those nuggets used to be a piston.
08-25-2016, 08:47 PM #4
- Join Date
- Sep 2012
- broken arrow ok
i have done a few of those and im sure the crank is good, may need to get the block sleeved and new piston and rod and then some bearings and maybe oil pumps. make sure you replace the exaust valves, well the head needs replaced anyway. the problem started with the exaust valves, they were hollow and then they drop and break the piston. Its a good looking ski.
08-25-2016, 09:15 PM #5
08-26-2016, 07:10 AM #6
Can i have just the damaged sleeve replaced or will they have to do all three? Any idea on what it cost for re-sleeve?
08-26-2016, 09:23 AM #7
I would make sure the crank and other rods are OK first. You maybe able to find a good used short block or complete engine for less money. Since you also need a cylinder head, rod, piston.
08-26-2016, 09:46 AM #8
I have a complete 02 155 4 Tec engine that has water damaged bores (already bored .5 mm over) and two spun rod bearings that I can use for parts. I have to pull and disassemble the engine to see the full extent of damage
08-28-2016, 07:47 PM #9
These are pics of my 155 parts engine, water damaged bores (already bored to 0.50mm over), two spun rod bearings, one rod and the head is still good. The pistons are SBT 0.50mm with new piston rings, but are for a 155. Tomorrow I'll pull the 185 and see if the crankshaft is ruined and get a good look at the damaged bore. If the crank is good and the damaged bore is able to be bored .5 mm over, I could have all three bores done and run the 155 pistons and leave the supercharger off
08-28-2016, 07:58 PM #10
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