Go Back   TeamTalk > Maintenance Tips, How-tos and Refurbishing Topics > Engine / Drive Train

Reply
 
Thread Tools Display Modes
  #11  
Old 11-09-2012, 11:14 AM
Thrall's Avatar
Thrall Thrall is offline
MC Maniac
 
Join Date: Jul 2004
Boat: '06 X2 MCX
Location: Eagle River, AK!
Posts: 3,825
You won't wreck a good impeller by cranking the engine or even starting it up briefly with no water to the engine.
My usual routine if I have to start it out of the water (at home), since I just put a garden hose in the r/w line, is to start the boat with the hose ready to go, then go turn on the hose. It runs for 10-15sec dry, no problem.
I had an unfortunate incident with a defective Perko flush pro first time out a couple years ago. Boat idled for proabably a couple minutes before I realized what was going on. The engine compartment got very hot, light smoke from somewhere was the clue, but it actually did not ruin anything. Exhaust hoses were fine, impeller fine. Not that I'm reccomending to do that, but evidence that starting it dry for a few seconds won't hurt anything.
__________________
'06 X2 MCX

"I understand why some people may not want to do this the way I have recommended but I can't understand the death grip some people have on a toilet plunger with a hose fitting." -JimN
Reply With Quote
  #12  
Old 11-09-2012, 11:22 AM
mzimme's Avatar
mzimme mzimme is online now
MC Maniac
 
Join Date: Mar 2012
Boat: 2006 Supra 20V
Location: Kansas City
Posts: 2,952
Quote:
Originally Posted by Thrall View Post
You won't wreck a good impeller by cranking the engine or even starting it up briefly with no water to the engine.
My usual routine if I have to start it out of the water (at home), since I just put a garden hose in the r/w line, is to start the boat with the hose ready to go, then go turn on the hose. It runs for 10-15sec dry, no problem.
I had an unfortunate incident with a defective Perko flush pro first time out a couple years ago. Boat idled for proabably a couple minutes before I realized what was going on. The engine compartment got very hot, light smoke from somewhere was the clue, but it actually did not ruin anything. Exhaust hoses were fine, impeller fine. Not that I'm reccomending to do that, but evidence that starting it dry for a few seconds won't hurt anything.
No offense, but just because things came out ok for you at one time does not mean the correct advice given should be that starting dry is fine. Starting dry is what ruins impellers prematurely, there's really no disputing that. Impellers can go bye bye in as little as a few seconds, it's just not worth a dry start.
Reply With Quote
  #13  
Old 11-09-2012, 11:34 AM
TRBenj TRBenj is offline
MC Devotee
 
Join Date: Dec 2005
Boat: 1990 Ski Nautique
Location: NWCT
Posts: 1,147
Quote:
Originally Posted by mzimme View Post
No offense, but just because things came out ok for you at one time does not mean the correct advice given should be that starting dry is fine. Starting dry is what ruins impellers prematurely, there's really no disputing that. Impellers can go bye bye in as little as a few seconds, it's just not worth a dry start.
No, he's right... at least mostly. Unless the RWP was drained fully (this will not happen over time- only if it was drained or blown out), a "dry start" isnt actually dry- there is some residual water left in it. A quick start without water is NOT going to shred an impeller. Im talking 1-2 seconds... not 30+. I dont trailer regularly, so Im not subjecting the impeller to this practice on a regular basis... but on all the boats I own or work on, I do a quick dry start before heading to the ramp... sure beats monkeying around once you get there. I get 5+ years out of my impellers.
Reply With Quote
  #14  
Old 11-09-2012, 11:49 AM
XtwentyNot's Avatar
XtwentyNot XtwentyNot is offline
TT Enthusiast
 
Join Date: Jul 2012
Boat: None
Location: Pacific Northwest
Posts: 275
I blame the dealer for me having to change the impeller at less then 10 hours on a new X25. I yelled at them when they dry fired it, they laughed at me. I made them give me a new impeller to put in my glove box. I should have made them change it since I overheated and had to change it on my next use.
Reply With Quote
  #15  
Old 11-09-2012, 12:17 PM
east tx skier's Avatar
east tx skier east tx skier is offline
MC Hero
 
Join Date: Jul 2004
Boat: 1998 Ski Nautique
Location: End of my rope.
Posts: 25,302
Even though there is water in the pump housing, I err on the side of not starting the boat out of the water unless it is hooked up to a water source. If you are worried about your battery's state, just turn on the blower. If it sounds weak, you may want to check the battery. If it fires up loud as ever, you're probably good to go. You should be running the blower anyway, right?

Also, if you have a fair amount of down time between uses, a battery cut off switch is a good investment. My boats have always managed to have one sort of phantom draw or another that will drain the battery over time. The switch is cheaper and easier for me than chasing the source of the draw.

Also, we have a battery powered jump starter that we keep charged up and take on the boat with us. It isn't huge and is good insurance.
__________________
Previous: 1993 Prostar 205

Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG.

FAQ


Tyler Ski Club


To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.

Last edited by east tx skier; 11-09-2012 at 12:23 PM.
Reply With Quote
  #16  
Old 11-09-2012, 12:45 PM
thatsmrmastercraft's Avatar
thatsmrmastercraft thatsmrmastercraft is offline
MC Master Poster
 
Join Date: Sep 2008
Boat: 1977 Stars & Stripes
Location: St. Paul, MN
Posts: 15,029
Quote:
Originally Posted by east tx skier View Post
Even though there is water in the pump housing, I err on the side of not starting the boat out of the water unless it is hooked up to a water source. If you are worried about your battery's state, just turn on the blower. If it sounds weak, you may want to check the battery. If it fires up loud as ever, you're probably good to go. You should be running the blower anyway, right?

Also, if you have a fair amount of down time between uses, a battery cut off switch is a good investment. My boats have always managed to have one sort of phantom draw or another that will drain the battery over time. The switch is cheaper and easier for me than chasing the source of the draw.

Also, we have a battery powered jump starter that we keep charged up and take on the boat with us. It isn't huge and is good insurance.
Great for peace of mind. Haven't needed mine since I got it.
__________________
Peter

Tandem Axle Wheel & Tire Packages Starting at $569
4 Aluminum 14x5.5 wheels, 4 ST205/75R14 tires, mount, balance & delivery.

Single Axle Wheel & Tire Package $319
2 Aluminum 14x5.5 wheels, 2 ST205/75R14 tires, mount, balance & delivery.


CARB REBUILDING - FAST TURN-AROUND - $125 +PARTS
LED lights, Hubs, Spare Tire Carriers, Chrome & Powder Coated Lug Nuts - Red, Blue & Black


PM or email me tiresplease@gmail.com
Reply With Quote
  #17  
Old 11-09-2012, 02:56 PM
mikeg205's Avatar
mikeg205 mikeg205 is offline
Moderator
 
Join Date: Aug 2011
Boat: 1995 Pro Star 205 5.7 Liter
Location: Plainfield - Joliet, IL
Posts: 11,403
Send a message via Skype™ to mikeg205
+ 1 on not running engine with no water... if you want to spin the engine to check it.. make sure the impeller is lubricated. I run in a muddy river that has it's share of duck weed and other flora that can get sucked up....so my MCOCD kicks in and I check my impeller a few outings and back flush the tranny cooler....usually get some grass out during the back flush.

I always check start in the drive way...lanyard off just to make sure all is good...yeah I know...the start in the drive good always be the last for a starter....
__________________
...A bad day water skiing still beats a good day at work...1995 Pro Star 205....
Reply With Quote
  #18  
Old 11-09-2012, 02:57 PM
mikeg205's Avatar
mikeg205 mikeg205 is offline
Moderator
 
Join Date: Aug 2011
Boat: 1995 Pro Star 205 5.7 Liter
Location: Plainfield - Joliet, IL
Posts: 11,403
Send a message via Skype™ to mikeg205
Quote:
Originally Posted by thatsmrmastercraft View Post
Great for peace of mind. Haven't needed mine since I got it.
Everyone I know who bought a jump starter never needed it.. lol.
__________________
...A bad day water skiing still beats a good day at work...1995 Pro Star 205....
Reply With Quote
  #19  
Old 11-09-2012, 03:04 PM
mzimme's Avatar
mzimme mzimme is online now
MC Maniac
 
Join Date: Mar 2012
Boat: 2006 Supra 20V
Location: Kansas City
Posts: 2,952
I just bring jumper cables. I don't have a perko switch hooked up yet for my second battery (use the second battery for the stereo only), so if I need some extra power I hook up the cables and am usually fine. If not, someone else on the water will be able to help.
Reply With Quote
  #20  
Old 11-09-2012, 03:21 PM
Miss Rita's Avatar
Miss Rita Miss Rita is offline
MC Fanatic
 
Join Date: Jul 2009
Boat: 1992 ProStar 205, 1991 Ski Pro
Location: Black Hills
Posts: 851
wouldn't the impeller run dry every time you start the engine until it draws water up through the intake hose?
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 07:51 AM.