STD Maintenance General How do I turn the engine?

How do I turn the engine?

How do I turn the engine?

 
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led-panzer
Holset

541
12-31-2010, 07:09 PM #1
This may seem like a stupid question but I can't find an explanation. I want to pull the ip, This means turning the engine to TDC. I've read "on the crank balancer" which I'm sure is under the valve cover, I haven't pulled it yet. Could anyone specify for me or possibly post a pic of what I need to turn?

1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
12-31-2010, 07:09 PM #1

This may seem like a stupid question but I can't find an explanation. I want to pull the ip, This means turning the engine to TDC. I've read "on the crank balancer" which I'm sure is under the valve cover, I haven't pulled it yet. Could anyone specify for me or possibly post a pic of what I need to turn?


1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake

larsalan
Superturbo

1,272
12-31-2010, 08:22 PM #2
oh I just read one way to find TDC. I guess you would need to use a clear tube so you could see when the cylinder is at its least volume

http://www.mail-archive.com/mercedes@oki...62885.html

Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
larsalan
12-31-2010, 08:22 PM #2

oh I just read one way to find TDC. I guess you would need to use a clear tube so you could see when the cylinder is at its least volume

http://www.mail-archive.com/mercedes@oki...62885.html


Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'

led-panzer
Holset

541
12-31-2010, 10:09 PM #3
Thanks larsalan. Ok, I gathered that there are markings on the balancer to tell you where you are, whether that's where you truly are or not, my question was what nut or bolt do I turn that will rotate the engine?

1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
12-31-2010, 10:09 PM #3

Thanks larsalan. Ok, I gathered that there are markings on the balancer to tell you where you are, whether that's where you truly are or not, my question was what nut or bolt do I turn that will rotate the engine?


1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake

larsalan
Superturbo

1,272
12-31-2010, 10:20 PM #4
I turn the 22mm power steering nut that is attached to the crankshaft by a belt.

you'll be able to feel the compression strokes and with the valve cover off you can see the cam shaft turn too. dig it?
as for finding TDC for any particular cylinder you'll have to let me know what's a good way to find it. Prolly like shortly before the cams start to open the exhaust valves right? I dunno how close. Get pictures
here's a chart of what each valve is.
[Image: valveadjustment.htm]


from
http://www.dieselgiant.com/valveadjustment.htm
This post was last modified: 12-31-2010, 10:32 PM by larsalan.

Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
larsalan
12-31-2010, 10:20 PM #4

I turn the 22mm power steering nut that is attached to the crankshaft by a belt.


you'll be able to feel the compression strokes and with the valve cover off you can see the cam shaft turn too. dig it?
as for finding TDC for any particular cylinder you'll have to let me know what's a good way to find it. Prolly like shortly before the cams start to open the exhaust valves right? I dunno how close. Get pictures
here's a chart of what each valve is.
[Image: valveadjustment.htm]


from
http://www.dieselgiant.com/valveadjustment.htm


Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'

led-panzer
Holset

541
12-31-2010, 10:36 PM #5
Cool thanks Smile

1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
12-31-2010, 10:36 PM #5

Cool thanks Smile


1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake

ForcedInduction
Banned

3,628
01-02-2011, 11:00 AM #6
If you can turn the engine at all by the steering pump, the belt is way too tight.

All you need is a 27mm deep socket and a ratchet to turn the engine correctly by the crankshaft.
ForcedInduction
01-02-2011, 11:00 AM #6

If you can turn the engine at all by the steering pump, the belt is way too tight.

All you need is a 27mm deep socket and a ratchet to turn the engine correctly by the crankshaft.

larsalan
Superturbo

1,272
01-02-2011, 04:46 PM #7
Really? I turned it that way to do the valve adjustment and it seems like there is good deflection on my belts.
Someone told me to turn it that way because it is easier to reach than the 27mm on the crankshaft. Maybe they had said to tighten up the belt just for the purpose of turning over the crankshaft

Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
larsalan
01-02-2011, 04:46 PM #7

Really? I turned it that way to do the valve adjustment and it seems like there is good deflection on my belts.
Someone told me to turn it that way because it is easier to reach than the 27mm on the crankshaft. Maybe they had said to tighten up the belt just for the purpose of turning over the crankshaft


Rusted out beat down 300d turbo 82' -- RIP
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'

Captain America
Boostin' & Roostin'

2,221
01-04-2011, 11:25 AM #8
I just throw a breaker bar with the 27mm socket on the crank bolt. You will have plenty of leverage and can be extremely accurate, which is what you need when you time the IP.


1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

Captain America
01-04-2011, 11:25 AM #8

I just throw a breaker bar with the 27mm socket on the crank bolt. You will have plenty of leverage and can be extremely accurate, which is what you need when you time the IP.



1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag

AX15 Jeep Trans swap in progress....

winmutt
bitbanger

3,468
01-04-2011, 01:04 PM #9
Yes do not use the PS pump...

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
01-04-2011, 01:04 PM #9

Yes do not use the PS pump...


1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

led-panzer
Holset

541
01-05-2011, 04:04 PM #10
Haven't gotten to it yet anyway, this car being my daily driver and now only vehicle has made me a bit of a chicken shit about messing with something that important.

1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
01-05-2011, 04:04 PM #10

Haven't gotten to it yet anyway, this car being my daily driver and now only vehicle has made me a bit of a chicken shit about messing with something that important.


1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake

 
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