Author Topic: V172.....Need More Power!  (Read 64729 times)

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Offline Jason

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V172.....Need More Power!
« on: November 23, 2011, 09:20:53 AM »
Decided to repower the V172.

Originally it had a 67 Merc I6 95HP.

Found a 1980 Viking Deckboat with a 1980 150hp V6 Merc. Good compression, good spark, runs good.

Dragged it home last week. Pulled the motor off Sunday. Stripping the boat down now. Gonna dump it if no one takes it by saturday. Gonna sell the trailer hoefully sooner then later.

Built this engine stand monday night. Grand total in cost of $22!

I will keep you posted as I pull the old motor to make the swap.


One question: When filling and drilling the holes for the new motor, what do you recommend I use to fill the old holes and seal the new ones?



Jason S.
1974 Glastron Carlson CV16SS 140 I/O
1986 Glastron Carlson CV23 260 I/O

Offline MarkS

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Re: V172.....Need More Power!
« Reply #1 on: November 23, 2011, 09:33:05 AM »
Congrats on the "new" 150 Jason, that ought to make your V172 FLY!
Quote
what do you recommend I use to fill the old holes and seal the new ones?
I'd get the appropriate size hardwood dowel rod and cut to length, Soak the holes and the dowel rod in epoxy or resin, and drive them home.  Finish with "Peanut butter" and/or Gelcoat, whatever your fancy dictates.  Just my thoughts, someone else may have better ideas.....?
Mark
1978 SSV-176

Offline Rich_V174SS

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Re: V172.....Need More Power!
« Reply #2 on: November 23, 2011, 09:49:11 AM »
I second the hole-filling recommendation.
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline David CVX-16

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Re: V172.....Need More Power!
« Reply #3 on: November 23, 2011, 04:12:16 PM »
Wow Jason, you move fast. I bought my Mercury last December and it is still sitting on the stand.

Menards has hardwood dowels in different diameters.

I am using transom supports or plates to distribute the stresses of the bolts over a wider area. The supports are make by T H Marine for both the upper and lower bolts. Here is a link for the whole kit, but my upper and lower were about $25 to $30 each. The supports will also cover the old holes.

http://www.ebay.com/itm/TRANSOM-SUPPORT-PLATE-KIT-HARDWARE-SEALER-TSP1DP-TSP2DP-/130588032633?hash=item1e67a73e79&item=130588032633&pt=Boat_Parts_Accessories_Gear&vxp=mtr

Maybe if your outboard motor stand is still around next spring, I could borrow it to place the old motor until the new motor is transferred onto the boat from my outboard motor stand.
« Last Edit: November 23, 2011, 04:15:30 PM by David V-153 »
David
87' CVX-16, 85' 115 HP Johnson, 58.8 MPH GPS w/ 23" SRX Prop

Offline Hyperacme

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Re: V172.....Need More Power!
« Reply #4 on: November 23, 2011, 04:23:31 PM »
" I'd get the appropriate size hardwood dowel rod and cut to length, Soak the holes and the dowel rod in epoxy or resin, and drive them home.  Finish with "Peanut butter" and/or Gelcoat, whatever your fancy dictates.  Just my thoughts, someone else may have better ideas.....? "

That's how my V-156 was done, with the plates Dave talked about to cover old thumb screw scares on transom.

If ya need any help ... just post !

Offline MarkS

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Re: V172.....Need More Power!
« Reply #5 on: November 23, 2011, 06:43:41 PM »
David wrote;
Quote
Maybe if your outboard motor stand is still around next spring, I could borrow it to place the old motor until the new motor is transferred onto the boat from my outboard motor stand.
I happen to have an extra stand now, the Merc sold and I shipped it to Oregon yesterday.  You're welcome to it David, no charge.  (Shipping may be more than it would cost to build one, I don't know but could find out.)  Since it's screwed together, I could break it down for easier shipping.  Nothing fancy mind you, but you could easily add wheels or whatever.  Just a thought......let me know.

Here's the plans I think Gregg came up with a while back (?)
Mark
1978 SSV-176

Offline David CVX-16

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Re: V172.....Need More Power!
« Reply #6 on: November 23, 2011, 08:00:33 PM »
Mark, your outboard motor stand looks very well constructed. I would not need the extra stand until next spring and then just for the time it takes for the motor switch. I even thought of using a heavy duty sawhorse to clamp the outboard onto (the 1974 Merc has clamps at the top) while the skeg rests on the floor, maybe boxed in at the sides to prevent it from tipping over. In any case, spring is months away and I will let you know if yours is needed.

I sent Joe Poole an e-mail asking him if he knew of an adopter whereby the harness on a 1971 Mercury Quicksilver tachometer can be modifyed to fit the plug in to a 1988 control box, as the configeration has changed. Also called Allen at Supreme Motors. He did not know for sure, but would take a look at it. It would be nice to keep the square faced instruments rather than going to the International II series of the 1980's.  
« Last Edit: November 23, 2011, 09:09:43 PM by David V-153 »
David
87' CVX-16, 85' 115 HP Johnson, 58.8 MPH GPS w/ 23" SRX Prop

Offline Rosscoe

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Re: V172.....Need More Power!
« Reply #7 on: November 23, 2011, 09:13:58 PM »
THAT should push it along good. I saw that you mentioned a 150 in some other thread and saw that one on CL and thought uh huh!

David I have 2 stands but they both have motors on them right now. If I can free one up, I may have one available for the swap.
The one that Mark posted a pic of is the one I made. Does the trick and I had spare treated lumber from my deck so I didnt have to buy any. Just the casters. The other one doesnt roll around but I have clmaped to a furniture dolly right now.
Ross
61 Surflite 1964 90HP Johnson project
67 V163 Bayflite Super Sport  1989 100HP Merc
67 V164 Bayflite 120HP
67 V174 Crestflite Rat Rod
71 V175 Crestflite 350ci -Jet
73 GT 160
84 CVX 17  83 115 Merc
88 CVX-23 350 Mag

Offline Jason

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Re: V172.....Need More Power!
« Reply #8 on: November 23, 2011, 09:57:27 PM »
Dave, I hope to have that motor hanging on the 172 within a week or so. But then my old motor needs a stand and I am not sure what the future holds for that motor. I want to sell it but may hang on to it. The stand I have took about a hour to build. you could easily just build one too dave, but if this one is free in the spring you are more than welcome to it.

Also, the Viking deckturd had a huge aluminum plate on it. I was going to try and make some stiffener brackets out of that. Not sure if it will be as pretty but should work!
Jason S.
1974 Glastron Carlson CV16SS 140 I/O
1986 Glastron Carlson CV23 260 I/O

Offline David CVX-16

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Re: V172.....Need More Power!
« Reply #9 on: November 23, 2011, 10:34:22 PM »
Jason, if you need an aluminum plate, our metal fab shop has aluminum plate material in various thicknesses and can cut it to any size with the shears, or we can cut your plate.

Don't worry about an outboard motor stand. I can have someone at work throw one together out of tube steel and put casters on it if need be.
« Last Edit: November 23, 2011, 10:36:50 PM by David V-153 »
David
87' CVX-16, 85' 115 HP Johnson, 58.8 MPH GPS w/ 23" SRX Prop

Offline Rosscoe

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Re: V172.....Need More Power!
« Reply #10 on: November 25, 2011, 09:41:50 AM »
David, you really only need one for the swap, right because you have that killer steel/diamond plate one and dont want or need to have another taking up space. Your "old" motor willl go on there once the "new" one is hanging on the boat. We should be able to work something out among us so you dont have an unused one in the way. Maybe you could suspend it from the ceiling temporarily and lightly rest the skeg on some carboard, carpet scraps of something?
Ross
61 Surflite 1964 90HP Johnson project
67 V163 Bayflite Super Sport  1989 100HP Merc
67 V164 Bayflite 120HP
67 V174 Crestflite Rat Rod
71 V175 Crestflite 350ci -Jet
73 GT 160
84 CVX 17  83 115 Merc
88 CVX-23 350 Mag

Offline David CVX-16

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Re: V172.....Need More Power!
« Reply #11 on: November 25, 2011, 11:26:44 AM »
You are right Ross that I only need and want one outboard motor stand. I am slow at things so the old motor will be off for a few days/weeks? before the new one is ready to go on the reconstructed transom - old holes filled, new holes drilled, transom supports in place. I probably could set the motor down on the floor of the garage resting on the skeg and the clamps of the motor tightened onto a piece of wood  2"  x  10"  x  36" long. Then the motor locked so it can not swivel/turn. 

I'm really excited about putting the new motor on and want to get an early start next year doing it and doing it right.

We have alot of new set ups coming this spring - Brian, Gregg, David, Jerry, and others.

Maybe a prop testing day for Steve, Jim, Jerry, Gregg, and David

David

   
David
87' CVX-16, 85' 115 HP Johnson, 58.8 MPH GPS w/ 23" SRX Prop

Offline Jason

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Re: V172.....Need More Power!
« Reply #12 on: November 25, 2011, 01:58:12 PM »
Maybe a prop testing day for Steve, Jim, Jerry, Gregg, and David
  

And Jason..

Will the I6 props work on the V6 motors?
Jason S.
1974 Glastron Carlson CV16SS 140 I/O
1986 Glastron Carlson CV23 260 I/O

Offline Jason

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Re: V172.....Need More Power!
« Reply #13 on: November 25, 2011, 02:07:18 PM »
Ready for the dump.







Jason S.
1974 Glastron Carlson CV16SS 140 I/O
1986 Glastron Carlson CV23 260 I/O

Offline David CVX-16

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Re: V172.....Need More Power!
« Reply #14 on: November 25, 2011, 05:13:49 PM »
Sorry about the omission Jason. Guess I am getting old. Your V-6 has a larger hub than the in-line Mercurys. Did you get a prop with the motor? I'm thinking that a 19" or 21" would work. Believe your red line is 5,500 RPM. Props that come to mind are the standard Mercury aluminum prop, a stainless steel Mercury Laser II in the odd pitchs (19", 21"), Ballistic, and the older style Mercury stainless steel QSS that Jim Barrett has.  Propably start out with the prop that came with the motor to see where your RPM's are and go from there.

 
David
87' CVX-16, 85' 115 HP Johnson, 58.8 MPH GPS w/ 23" SRX Prop

Offline Jerry

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Re: V172.....Need More Power!
« Reply #15 on: November 25, 2011, 05:22:04 PM »
You are right Ross that I only need and want one outboard motor stand.
David

Wish I could say that.







That doesn't count the ones that are in pieces, and the 3800 OMC that's on the floor.

'72 Glastron GT160 Sport - Okie-Dokie
'63 Winner - Grandpa's Fisn-Bote
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Offline wiliermdb

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Re: V172.....Need More Power!
« Reply #16 on: November 25, 2011, 06:25:13 PM »
Bob's machine shop has the backing plates for $25 a set. (2) I put them on the CVX back in January before the big washers from the factory cracked the glass. Had an indention of about 1/8 inch.

Offline MarkS

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Re: V172.....Need More Power!
« Reply #17 on: November 26, 2011, 05:47:43 AM »
Quote
Bob's machine shop has the backing plates for $25 a set.
http://www.bobsmachine.com/Products/transom_backing_plates.cfm
Mark
1978 SSV-176

Offline Jason

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Re: V172.....Need More Power!
« Reply #18 on: November 26, 2011, 11:29:22 AM »
maybe the V6 is the same as the stern drive's then. I'll see if one of those fit. The 150 came with a banged up 17p prop.
Jason S.
1974 Glastron Carlson CV16SS 140 I/O
1986 Glastron Carlson CV23 260 I/O

Offline Hyperacme

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Re: V172.....Need More Power!
« Reply #19 on: November 26, 2011, 12:12:21 PM »
Jason
I have a brand new Merc / Quicksilver 20 P alm. prop with a Torq flo hub.
I'm not going to list it on CL until next summer, so if you would like to try it in the spring and it works  ...
Will also have a 20P Laser II for sale in spring you can try ...
« Last Edit: November 26, 2011, 12:19:22 PM by Hyperacme »