Turning over the motor

302mustang

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Jun 4, 2007
Messages
26
Hi post,

First and foremost, thanks to everyone who has helped me out with the problems i have had.

I do have another question. I have a 96 glasstron 3.0 volvo penta I/O.

The way it's mounted in the front, I can't get a breaker bar on the pully. Is there a trick to this?

How are you supposed to manually turn the motor.

Yep heads are off and it's tore down. I am trying to get it cleaned up for the re-install.

Thanks again guys. You have been very helpful so far.


Sean

P.S. - if anyones looking for a mustang 94' semi built, i have one for sale. Mint condition. Need to sell to afford this boat.
 

Coors

Captain
Joined
Dec 8, 2006
Messages
3,367
Re: Turning over the motor

Need a pic; if the pulleys aren't hitting the bulkhead, you should have room.
 

302mustang

Cadet
Joined
Jun 4, 2007
Messages
26
Re: Turning over the motor

Here are the pics. The motor mount is in the way. Do i seriously need a cherry picker to pull this thing just to rotate the crank??????

Thanks board

P.S. - Let me know if you need more photos. I'll go and grab a few more from different angles. Hope this helps you to help me.
 

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whywhyzed

Banned
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Feb 1, 2005
Messages
1,871
Re: Turning over the motor

how bout welding something to an old u-joint shaft and turning it from the back with the outdrive off.
OR
With the head off and no compression - might just be able to grab the w/p belt and turn it- just watch your fingers
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Turning over the motor

You have no compression with the head off. Pull back on the power steering pump by hand to tighten the belt, then turn the circ pump pulley with a 1/2" wrench on the pully bolts
 

Coors

Captain
Joined
Dec 8, 2006
Messages
3,367
Re: Turning over the motor

I don't know, let the guys with that engine chime in.
 

302mustang

Cadet
Joined
Jun 4, 2007
Messages
26
Re: Turning over the motor

Don S. Your a genius. If you were here I'd kiss you. (just kidding guys). How about settle for a cold one?

I worked great, but I do have a final question and I'll stop buggin you guys. It looks as if the #1 and #4 cylinder are at TDC the same time and the same goes for #2 and #3. Is this normal? Or does it just look that close?

Secondly. Where does the piston need to be when Adjusting the Valves? At TDC or just as it starts to move down a pinch?

Thanks board,

Can i buy a drink for all who helped me?

Sean
 

bomar76

Lieutenant Commander
Joined
Jun 27, 2002
Messages
1,963
Re: Turning over the motor

A strap wrench around the harmonic balancer would do it too
 

Don S

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Aug 31, 2004
Messages
62,321
Re: Turning over the motor

Here is the procedures from a Mercruiser manual. Same thing, just easier to copy and past.

Valve Adjustment
Engine Not Running
With valve cover removed, adjust valves when lifter is on low part of camshaft lobe, as
follows:
1. Crank engine with starter or turn over in normal direction of rotation until mark on
torsional damper lines up with center “0” mark on timing tab, and engine is in No. 1 firing
position. This may be determined by placing fingers on No. 1 valve as mark. If valves
move as mark comes up to timing tab, engine is in No.4 firing position and should be
turned over one more time to reach No. 1 position.
2. With engine in No. 1 firing position as determined above, the following valves may be
adjusted:
• No. 1 Cylinder - Exhaust and Intake
• No. 2 Cylinder - Intake
• No. 3 Cylinder - Exhaust
• No. 4 Cylinder - Intake
3. Loosen adjusting nut until lash is felt at push rod, then tighten adjusting nut until all lash
is removed. This can be determined by moving push rod up and down while turning
adjusting nut until all play is removed.
4. Hydraulic lifters can be adjusted by tightening adjustment nut an additional 3/4-turn.
Valve lash should be checked after engine has run and reached operating temperature.
5. Crank engine one revolution until pointer “0” mark and torsional damper mark are again
in alignment. This is No. 4 firing position. With engine in this position, the following valves
may be adjusted:
• No. 2 Cylinder - Exhaust
• No. 3 Cylinder - Intake
• No. 4 Cylinder - Exhaust
6. Repeat steps 3-4 to adjust other valves.
7. Install Distributor cap, spark plug wires and coil lead.
8. Install rocker arm cover; torque to 40 lb-in. (4.5 Nm).
 

302mustang

Cadet
Joined
Jun 4, 2007
Messages
26
Re: Turning over the motor

Awesome. Many many thanks. I don't get re-worked head back until Thursday, and will probably take me 2 nights to re-assemble and test. I will surely post results. Granted I'm no mechanic, it may take longer.

Pray for me guys. Hope this works so I can go fishing.... Stay tuned!

Sean

Don S. You've been a great help. If I were your boss I'd pay your double. Thanks guys.
 
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