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Author Topic:   170 Montauk Outboard
howlingdogsteve posted 06-05-2007 09:56 PM ET (US)   Profile for howlingdogsteve   Send Email to howlingdogsteve  
Hi All,

I'm the proud new owner of a 2004 170 Montauk.
So far we love the boat.
I have a 2006 EFI 4 stroke Mercury on it.
The other day I was flushing it.
I unscrewed the hose from the top flush fitting and pulled out one side of the rubber fiiting.
I was able to carefully place it back in the outboard.
Is there anything that could be a problem by doing this?
In other words, is there a tube or something on the inside that could come lose from the rubber fitting?
Can I run the boat and flush it without any fears?

Thanks so much.

Knot at Work posted 06-06-2007 04:46 AM ET (US)     Profile for Knot at Work  Send Email to Knot at Work     


Yes this is a common problem on the boat. I recommend you just use the muffler for water washing.

howlingdogsteve posted 06-06-2007 06:04 AM ET (US)     Profile for howlingdogsteve  Send Email to howlingdogsteve     
But, did I cause any problems to the outboard?


Jaybld posted 06-06-2007 09:07 AM ET (US)     Profile for Jaybld  Send Email to Jaybld     
You might try looking up the parts section of the mercury outboard website. You will asked to enter your motor serial number, and eventually you will get to view schematics of your engine along with associated parts and costs. The point it you will be able to see what was disconnected, and it might help you understand your motor a little better. It has certainly helped me.
Knot at Work posted 06-06-2007 09:11 AM ET (US)     Profile for Knot at Work  Send Email to Knot at Work     
I dont think you caused any problems, The fitting is intended to screw a hose in and flush the motor. I used it one time had the same difficulty you described and after pushing the plastic back in place. I never used the flush port again. Instead I used the mufflers on the lower end.

I recommend you hook the mufflers up and run the motor. Watch for the tattle tale stream. If facing the motor the tattle tale stream should flow to the stbd side.

gbcbu posted 06-06-2007 02:46 PM ET (US)     Profile for gbcbu  Send Email to gbcbu     
I had the same dam problem with my 2006. It was under warranty and the teck "muscled" a new one back in. The socket is connected to a rubber tube which is part of the water pump indicator hole which the teck had to re-connect when he replaced the rubber fitting. If that is working i.e. tell tail and you have a correct water pressure reading you probaly did no harm. Believe me I'm new at this but I had the exact same problem. I wrote to BW and they informed me that you could use the muffs with the motor out of the water to flush. I'd rather use the muffs. That quick connector needs a design change pronto!

gbcbu posted 06-06-2007 02:48 PM ET (US)     Profile for gbcbu  Send Email to gbcbu     
PS. If you take the Top Cowl off you can look down at the connector and make sure the tube is connected. Good luck.
howlingdogsteve posted 06-06-2007 05:24 PM ET (US)     Profile for howlingdogsteve  Send Email to howlingdogsteve     
Thanks guys.
Another problem I've been having is great difficulty taking the motor cowling off. I loosened the fore and aft locks but she doesn't want to budge.
Any suggestions?

Thanks much.

gbcbu posted 06-06-2007 07:32 PM ET (US)     Profile for gbcbu  Send Email to gbcbu     
It’s a big cowl. I have to struggle with it too. I keep the motor pretty much in the down position with just a little tilt up. After releasing both clamps I just try and pull the back up first. It always seems to “stick” to the rubber gasket. When putting it back I set the front then the back of the cowl and rest my body on top to force it down on the gasket.
You should take it off and take a peek at the quick connector to see if the tube is connected, good luck and let us know how it goes.
Knot at Work posted 06-07-2007 02:17 AM ET (US)     Profile for Knot at Work  Send Email to Knot at Work     
Motor cowl is heavy and also seals really well. You need to just give it a good lift from the rear and hinge it forward. After you have it off, put some lubricant on the cowl seal.

I only use the muffs for my flush after the same problem you had... no worries really..

howlingdogsteve posted 06-07-2007 08:33 PM ET (US)     Profile for howlingdogsteve  Send Email to howlingdogsteve     
I was able to pull from the back and get it off.
Took a real good tug though.
I saw the water line was still attached, so I'm good to go.

Thanks again guys.
This board is just another reason I'm glad I bought a Whaler.


jimh posted 06-08-2007 12:02 AM ET (US)     Profile for jimh  Send Email to jimh     
Another problem I've been having is great difficulty taking the motor cowling off. I loosened the fore and aft locks but she doesn't want to budge.

Welcome to the world of Mercury cowlings. I love to look under the cowling of engines. When I go to a boat show, I take the cowling off every engine I am interested in and study the engine. When I get to a Mercury engine I have to call the salesman over and ask him to take the cowling off. He struggles with it for a while, then he calls over another salesman. The two of them heave and grunt and throw their weight into it, and finally the cowling comes off.

"Thank you," I say to them politely. Then I study the engine. After a few minutes I try to put the cowling back on. It does not fit over the gasket easily. I call the salesman over again. Together we heave and pull on the cowling. Then I try to close the latches. They won't close. The salesman tries to close the latches. He can't get them to close either. I excuse myself and step away. The other salesman comes over and the two of them fiddle with the cowling for a few minutes, getting it back in place and closing the latches.

If I were the product manager at Mercury Marine for outboards, I would take all the designers who work on the cowlings to a boat show, and have them try the cowlings on a Yamaha, an E-TEC, or a Honda. I'd give them a digital camera and tell them to take a lot of pictures.

There may be a great motor under that cowling, maybe even designed by some German engineer who used to work for a Formula One race team. But the people who design the cowling latches and specify the gasket material don't seem to understand that sometimes you want to remove these things. And sometimes you have to do it out in the boat, on the water, and not at the dock. If nothing else the production manager ought to figure out some lubricant, grease, silicon, or something to apply to the gasket so it does not stick like bubble gum to the cowling.

Yes, I'd say your experience with a Mercury cowling was not unusual.

Now I did try the newest Mercury cowling on a OptiMax G2 or OptiMax The Next Generation motor. These cowlings are a new design. These cowlings were specifically re-engineered as part of the new model. These cowlings work a little better than most Mercury cowlings, but they are still a tight fit and seem harder to remove or replace than you'd like. But they're a step in the right direction.

gbcbu posted 06-08-2007 05:39 AM ET (US)     Profile for gbcbu  Send Email to gbcbu     
If I may suggest while those designers are out there looking at the cowling design they need to look at the quick connector flushing attachment too...that said the motor does run great and at idle speed ya can't beat the quiet...
Feejer posted 06-13-2007 11:13 AM ET (US)     Profile for Feejer  Send Email to Feejer     
Yea, They need to take a look at the Yamaha F150 attachment.
gbcbu posted 06-14-2007 09:23 AM ET (US)     Profile for gbcbu  Send Email to gbcbu     

I just looked at the Yamaha site on the F150 you referred to.

Here's what they have:

"Freshwater Flush Device allows you to flush the engine without running it, for added convenience and long-engine life."

I think this is great especially when you keep a boat at a slip or dock. It's more than just convenient.

itldo posted 06-15-2007 09:24 PM ET (US)     Profile for itldo  Send Email to itldo     
You can find a garden hose quick discount device at Home Depot that works just fine, look in the garden dept.
itldo posted 06-15-2007 09:32 PM ET (US)     Profile for itldo  Send Email to itldo     
Buy a can of silicon spray at Auto. store, a little on rubber gasket works wonders on getting motor cowling off
itldo posted 06-15-2007 10:14 PM ET (US)     Profile for itldo  Send Email to itldo     
Sorry! should have said {Quick Disconnect Device}
gbcbu posted 06-17-2007 06:52 AM ET (US)     Profile for gbcbu  Send Email to gbcbu     

I use/used a garden quick connect on my 90HP Mercury. It's not so much the location but the fact that the rubber seal that holds the actual connector, in my amateur/non mechanic,opinion is woefully inadequate and according to other comments on CW a problem as they have come apart or seperated or pop out of the cowl. I'm going to try the silicone on the cowl gasket thanks for the tip.

Barney posted 06-17-2007 08:57 AM ET (US)     Profile for Barney  Send Email to Barney     
I went with a garden hose quick connect too a few years ago. The first time the plastic grommet disappeared into the cowling was the first time I put the boat on a lift. Fixing it was fun from the boat. I also found that the front controls grommet pulls out and disintegrates. I ordered a new one and refit it properly. There were to many cables and hoses going thru too few holes in the grommet. I added holes and the new front grommet has stayed for two years now. The outboard is 4 years old. The only other thing is the trim motor which has heavy corrosion. Jim

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