how fast should a 07 challenger 180 go

[miran587]

i have a 07 challenger 180 single engine supercharged i just bought it took it out 1 time it ran like crap for 5 min then ran good maybe it was winterized or old gas in motor. once it ran good top speed was 25-26 mph on a pond the pond was little choppy rpm was i believe 6450 is that normal thought it would be faster

 

[Dieselcamel]

should be in 40ish range depending on load and condtions max rpm is around 8000 i believe

 

[cawish33]

at 6450 your supercharger is gone !! you need to rebuilt it ! if memory served me , the clutch washer was in ceramic on those year ! upgrade it to steel washer, check compression and spark plug etc...

 

[JoeZ]

at 6450 your supercharger is gone !! you need to rebuilt it ! if memory served me , the clutch washer was in ceramic on those year ! upgrade it to steel washer, check compression and spark plug etc...

Does sound like your supercharger needs to be rebuilt. How many hours since the last rebuild? If it's been more than 2 years or 100 hours, you can use our service to get back up to speed.
[h=2]Sea-Doo Supercharger Rebuild Service[/h]

 

[miran587]

boat only has 50 hrs i thought when supercharger goes washer breakes and goes into motor and damages it

 

[KK40384]

boat only has 50 hrs i thought when supercharger goes washer breakes and goes into motor and damages it

You are correct. That is what is going on most likely. They longer the motor runs like that the more likely it is to get more damage.

 

[miran587]

i wont use it but how can i tell if its supercharger . is there way so see if motor is hurt is there a special way to do compression test on these boats ive done them on cars

 

[miran587]

how do i know if washer went into motor is there way to remove it or is damage done

 

[Oldmanfunk]

This is only my opinion (not gospel) and we all know what those are worth

If in fact you have an issue with the washers on your SC drive shaft, then your SC clutch would be slipping constantly not allowing the motor to rev to the higher RPM's. Two things could cause this to happen. One, the washers have worn past their intended tolerances and are not applying the proper tension against the driven gear on the SC shaft. If this was the case, I would think that you would have noticed a decrease in performance over time, leaving you with the condition your experiencing now. Or the second possibility is that the washers (ceramic most likely) have given up the ghost and have disintegrated and are now laying in the bottom and all through out your timing chain case area.

So in conclusion, this is what I would do if it was my motor, and keep in mind that this is only my advise as I do not profess to be an expert.

Remove the SC from the back of your motor (real easy to do) and inspect the shaft carefully for any missing or damaged washers. Also spin the impeller by hand and listen for any noise which might be an indication of internal damage of the bearing / impeller components. If your missing any washers, then I wouldn't start the motor as the broken washer pieces could cause more damage than what has already happened. You’ll need to have the SC overhauled and the motor opened up and inspected / cleaned out (best case scenario).

If the washers all appear to be intact, then test the preload of the clutch slippage. This will tell you if the SC is slipping prematurely or not, and then go from there.
http://www.**************/forums/showthread.php?t=62056

Let us know

 

[miran587]

anyone know wat the compression should be on this boat

 

[Oldmanfunk]

anyone know wat the compression should be on this boat

This video may help with compression testing


http://www.youtube.com/watch?v=mtjWbqJq_PM

 

[miran587]

that video says 120 the research ive done says 150 . thats a jet ski how would you do wide open throttle on a boat it has different set up

 

[Oldmanfunk]

that video says 120 the research ive done says 150 . thats a jet ski how would you do wide open throttle on a boat it has different set up

It also said that the more important issue is to have a consistent value between all 3 cylinders. He stated that some gauges will read different than others

 

[miran587]

i understand that but 30 is alot for a gauge to be off i would think

 

[miran587]

also on the throttle body theres a spot were a 1/8th air hose should be connected but no air hose is this normal

 

[Oldmanfunk]

how would you do wide open throttle on a boat it has different set up

Again, I'm no expert and sense nobody else jumped in to answer this, I'll give it a go.
This procedure is a basic reference to how one would preform a compression test on your basic engine.

These starting systems have a 2-post solenoid. One post comes from the + side of the battery and the other goes to the starter. This solenoid is energized when you press the start/stop button.

So, what I would do in this order is:
1) Remove all your spark plugs
2) Discount the solenoids black electrical plug that has 2 small wires coming from it (this is the lead that basically gets the signal to energize the solenoid when you press the start button). Connect a remote starter switch across the 2 posts on the solenoid or you can connect 1 side to the positive post of the battery and the other to the starter post on the solenoid.
3) DO NOT plug your ignition key into the dash button. This will keep your primary ignition from being active, therefore you will not produce any secondary ignition to your plug wires while cranking using the remote starter switch.
4) Screw the compassion gauge into each spark plug hole one at a time and crank the engine using the remote switch. Record your readings

Couple things to consider, all though I wouldn't think either of these 2 conditions would be a factor on a engine with 50hrs.

If you get a cyl that is significantly lower than the other 2, then you might have a blown head gasket (not likely) or poor sealing between the rings and cyl wall. You can check this by 1st replacing the 2 spark plugs in the head that are not effected and then retest the low cyl and see if the reading increase at all. If it does, then you may have a leak across 2 cyl at the head gasket area. If your reading is the same, then try squirting a very small amount of 10/40w oil into the cyl, just enough to seep down around the piston to seal it's contact against the cyl wall. Retest the compression and see if the numbers come up. If so, you have a ring issue.

http://www.harborfreight.com/12-volt-remote-starter-switch-35448.html

 

[miran587]

if the boat is off and in neutral shouldnt the impellar spin freely i couldnt get it to spin . also started it for sec to feel supercharger tube to see if i coulkd feel air from supercharger didnt feel much it didnt get hard at all

 

[Oldmanfunk]

if the boat is off and in neutral shouldnt the impellar spin freely i couldnt get it to spin . also started it for sec to feel supercharger tube to see if i coulkd feel air from supercharger didnt feel much it didnt get hard at all

I would recommend at this stage that you take it to a qualified Seadoo mechanic.

 

[miran587]

I would recommend at this stage that you take it to a qualified Seadoo mechanic.

Yes I am I figured I'd try few simple things before that dealer I bought it from is far

 

[JoeZ]

If you take the intake hose off of the supercharger, with the engine off CAREFULLY see if you can spin the supercharger impeller by hand. Don't cut your hand on the impeller. If you can spin the supercharger impeller, the clutch is slipping and needs a rebuild. Just because it's slipping doesn't mean that the washers broke and fell into the engine.

The engine is direct drive, so you won't be able to spin the "prop" even if in neutral.

 

[miran587]

If you take the intake hose off of the supercharger, with the engine off CAREFULLY see if you can spin the supercharger impeller by hand. Don't cut your hand on the impeller. If you can spin the supercharger impeller, the clutch is slipping and needs a rebuild. Just because it's slipping doesn't mean that the washers broke and fell into the engine.

The engine is direct drive, so you won't be able to spin the "prop" even if in neutral.

i started it and squeezed the tube from the supercharger to see if it builds any pressure in tube it doesnt get hard at all very easy to squeeze feels same as off u can feel air as if its naturally aspirated does this say anything going to dealer saturday hopefully they fix it right

 

[JoeZ]

Kinda hard to tell from an idle, but if you blip the throttle you should certainly feel the tube inflate. Try the impeller hand spin test, too.

 

[miran587]

Kinda hard to tell from an idle, but if you blip the throttle you should certainly feel the tube inflate. Try the impeller hand spin test, too.

i squeezed it while i put it at full throttle didnt feel much if any pressure at all

 

[JoeZ]

All signs are pointing towards a slipping clutch....get it rebuild. Sea-Doo Supercharger Rebuild Service

 

[miran587]

All signs are pointing towards a slipping clutch....get it rebuild. Sea-Doo Supercharger Rebuild Service

is there way to tell if its slipping or if ceramic disk is gone