Author Topic: Looking for ideas on an Engine purchase & pickup  (Read 26906 times)

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Offline Rich_V174SS

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #20 on: March 03, 2016, 11:06:58 PM »
Remember I've mentioned your new motor mount will be about 6 inches forward from your existing mount. Then allow for clearance for pulleys and belts. If you don't have to move the seats I would at least cut in an access panel in the back of the seat to be able to work on the front of the engine.
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline dorelse

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #21 on: March 03, 2016, 11:54:27 PM »
Yep, thanks Rich.

Right now I just need to get it home and see what's what...I can then start measuring planning etc.  If I end up needing to adjust/rebuild the bench, I'll integrate a ski pole attachment point and set the original seat aside untouched.

$500.00 pretty solid deal...thanks Jim for the pickup!!!
1990 Sierra 1700

Offline Plugcheck

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #22 on: March 04, 2016, 01:27:51 PM »
    I've seen both heads from a V8 460 and I4 470.   The 470 has an extra coolant port on the short side, which when blocked off, can allow a used 470 head to be used on a V8 460, but honestly, I've never looked at it the other way around.  I will look tonight, likely has a press plug if the port is there.   Plenty of aluminum heads out there, but its the exhaust port that is so heinous in flow on the 460 head that is the real performance limiter.  Considering our stall speed of circa 5000 rpms, having the ability to make more HP at higher rpm's is not going to produce huge results.    Some porting and valve help is out there for cast iron heads, but not sure if its worth the ROI.   Still, I'm a bit curious to know the condition of the existing engine, compression, leak down.   Given your speed results, sounds like it might be a little sick?  At least it might be worth knowing if your going to part with it when your done with your conversion.
Michael
1979 CVZ-18 388 CI Vortec Mouse
1980 CVX-16SS 140 Mercruiser
1979 CVX-16 Johnson 175
2002 Bennington 2275CC 90 Mercury
1985 Intimidator project
1989 Lowe 200 Redneck fishin Toon
2001 Godfrey Sweetwater pontoon 115 Rude

Offline dorelse

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #23 on: March 04, 2016, 01:36:03 PM »
Yeah, we'll see...engine starts and run great, (a little flooding issue in long wake zones), but plenty of power.  I suspect it's just some adjusting on the throttle, prop tuning, etc.  My speeds were only via the gauge and the rpm gauge didn't work...so for all I know I was going faster than indicated. 

Only had it out twice then cleaned it up and put it away...I need to sort out the RPM, and clean the carb up.  The 140 will be sold once the 3.7 is in.
1990 Sierra 1700

Offline Tonka Jim

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #24 on: March 04, 2016, 03:04:19 PM »
Status;

Jumped starter & engine turns over (slow) - weak starter.
Hot wired coil - checked spark - none
Points fried - sanded & set points - no help
PO had ballast resister in wire from (-) coil to points - removed & ran direct wire - no help.
1977 SSV-176 / '85 115 Merc. - Mine
1989  CV 23 / 350 - 270hp - Kelly's
1968 V-174 / '73 140 I/O - Gifted to Son
1971 Seaking 14' / 1958 Evenrude 7.5 - Gifted to Grandson

Offline dorelse

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #25 on: March 04, 2016, 03:11:25 PM »
I knew you wouldn't let it sit!!!  LOL!
1990 Sierra 1700

Offline Tonka Jim

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #26 on: March 04, 2016, 03:23:59 PM »
I knew you wouldn't let it sit!!!  LOL!

SORRY ??????
1977 SSV-176 / '85 115 Merc. - Mine
1989  CV 23 / 350 - 270hp - Kelly's
1968 V-174 / '73 140 I/O - Gifted to Son
1971 Seaking 14' / 1958 Evenrude 7.5 - Gifted to Grandson

Offline dorelse

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #27 on: March 04, 2016, 03:24:34 PM »
I knew you wouldn't let it sit!!!  LOL!

SORRY ??????

Sorry?  No way, have at her!  (Only if you want to of course!)
1990 Sierra 1700

Offline Rich_V174SS

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #28 on: March 04, 2016, 03:35:51 PM »
Status;

Jumped starter & engine turns over (slow) - weak starter.
Hot wired coil - checked spark - none
Points fried - sanded & set points - no help
PO had ballast resister in wire from (-) coil to points - removed & ran direct wire - no help.

The ballast wire is supposed to go to positive terminal of the coil. Cranking bypass comes from the kicker solenoid under the exhaust manifold. Disconnecting the shift interrupt may help determine if the switch is shorted internally killing the spark.
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline Tonka Jim

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #29 on: March 04, 2016, 04:30:24 PM »
I ran a hot wire from battery to (+) coil, thinking I was eliminating all other wiring.
Ground side (-) of coil directly to points.
I unhooked all other wires to coil including tach.
I was thinking this would put ignition in start mode with hot shot to coil & no ballast resistor.
« Last Edit: March 04, 2016, 04:34:16 PM by Tonka Jim »
1977 SSV-176 / '85 115 Merc. - Mine
1989  CV 23 / 350 - 270hp - Kelly's
1968 V-174 / '73 140 I/O - Gifted to Son
1971 Seaking 14' / 1958 Evenrude 7.5 - Gifted to Grandson

Offline Glastronjohn18

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #30 on: March 04, 2016, 06:56:37 PM »
Quote
I ran a hot wire from battery to (+) coil, thinking I was eliminating all other wiring.
Ground side (-) of coil directly to points.
I unhooked all other wires to coil including tach.
I was thinking this would put ignition in start mode with hot shot to coil & no ballast resistor.

Your thinking is correct. If these are the only wires connected( shift interrupter disconnected also) than you should have spark.If no spark check the points again, condenser may be shorted, wire leading into dizzy may be shorted or coil may be bad. Also check rotor and check cap for carbon tracks.
« Last Edit: March 04, 2016, 06:58:09 PM by Glastronjohn18 »
John
'80 CVX 18 - Survivor Class
'78 CVX 18
'76 V 225 -   Bal Harbor
'80 V195XL
'86 CVX 18- And '86 Makes 3

Offline Tonka Jim

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #31 on: March 04, 2016, 08:53:37 PM »
Rotor & cap look good. Disconnected resistor. I'm checking for spark at the points - None
It's probably a bad coil. PO had 12V wire going to (+) side of coil & ballast resistor on (-) side to points. I'm hoping someone in the twin cities has a coil to try. I don't want to buy a new one if Dorn will be installing pointless system 
« Last Edit: March 04, 2016, 08:55:10 PM by Tonka Jim »
1977 SSV-176 / '85 115 Merc. - Mine
1989  CV 23 / 350 - 270hp - Kelly's
1968 V-174 / '73 140 I/O - Gifted to Son
1971 Seaking 14' / 1958 Evenrude 7.5 - Gifted to Grandson

Offline Glastronjohn18

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #32 on: March 04, 2016, 08:57:46 PM »
Try disconnecting the condenser and see if you get spark
John
'80 CVX 18 - Survivor Class
'78 CVX 18
'76 V 225 -   Bal Harbor
'80 V195XL
'86 CVX 18- And '86 Makes 3

Offline Tonka Jim

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #33 on: March 04, 2016, 09:05:24 PM »
Did That
1977 SSV-176 / '85 115 Merc. - Mine
1989  CV 23 / 350 - 270hp - Kelly's
1968 V-174 / '73 140 I/O - Gifted to Son
1971 Seaking 14' / 1958 Evenrude 7.5 - Gifted to Grandson

Offline Glastronjohn18

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #34 on: March 04, 2016, 09:13:27 PM »
Hope you can borrow a coil for troubleshooting , no need to buy one until the conversion is done. Pertronix has several of them.
John
'80 CVX 18 - Survivor Class
'78 CVX 18
'76 V 225 -   Bal Harbor
'80 V195XL
'86 CVX 18- And '86 Makes 3

Offline Tonka Jim

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  • 1977 SSV 176 1989 CV 23
1977 SSV-176 / '85 115 Merc. - Mine
1989  CV 23 / 350 - 270hp - Kelly's
1968 V-174 / '73 140 I/O - Gifted to Son
1971 Seaking 14' / 1958 Evenrude 7.5 - Gifted to Grandson

Offline dorelse

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #36 on: March 04, 2016, 10:11:10 PM »
Well, I think its more along the lines of mounting the older 470 bell housing so it will bolt up to the MC-1 transom plate.  If I go with an alpha inner, I think I have to switch everything outer...gimbal, outer plate, etc, etc.

So thinking this is what I need...notice how the bolt holes are wider to accommodate the wider mounting points on the MC-1 (pre-alpha) plate:

http://www.ebay.com/itm/MERCRUISER-3-7-BELL-HOUSING-89775-165-170-470-488-PRE-ALPHA-/121790702845?hash=item1c5b4aa4fd:g:o34AAOSwYHxWIw4e&vxp=mtr

That should make the rear engine mounts plug & play...then its just moving the forward mounting cross member forward.
« Last Edit: March 04, 2016, 10:34:32 PM by dorelse »
1990 Sierra 1700

Offline Rich_V174SS

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #37 on: March 04, 2016, 10:39:04 PM »
You can try it but the different bell housing may affect how the starter bolts up to the engine. Some models had the starter bolts go through the bell housing with nuts on the back side. Some were threaded into the block casting. One thing Mercury was good at was if you change one part it created a bunch of other annoying problems to solve.
1967 V174 Crestflite SuperSport Modified
1987 Mercruiser 190 3.7LX/Alpha One

1970 V176 Swinger
1983 Mercury 115

Offline dorelse

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #38 on: March 04, 2016, 11:19:16 PM »
You can try it but the different bell housing may affect how the starter bolts up to the engine. Some models had the starter bolts go through the bell housing with nuts on the back side. Some were threaded into the block casting. One thing Mercury was good at was if you change one part it created a bunch of other annoying problems to solve.
Lovely,  its a cheap enough part that I'm going to give it a shot...it would save a lot of time and effort if it works...

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1990 Sierra 1700

Offline Jason

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Re: Looking for ideas on an Engine purchase & pickup
« Reply #39 on: March 04, 2016, 11:34:14 PM »
I bet bad coil too. I have spares.
Jason S.
1974 Glastron Carlson CV16SS 140 I/O
1986 Glastron Carlson CV23 260 I/O