LD28 timing marks

Discuss (and cuss) the Nissan LD-series OHC Six diesel engine, popularly available in the US in 1981-83 Datsun/Nissan Maxima Sedans & Wagons.

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philip
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Location: Southern California, USA

LD28 timing marks

#1

Post by philip » 14 years ago

asavage wrote:
TheDieseliminator wrote: I found the above specification right on the back cover of my 81 diesel FSM.
That information is removed from the later manuals, and is pretty misleading, since there are not reference marks to use a 7° BTDC number: what would you do with it?
Where ARE those timing marks for setting the injection pump on LD28's?
-Philip
Passed 08May2008
My friend, you are missed . . .

1982 Datsun 720KC SD-22

"Im slow and I'm ahead of you"

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asavage
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#2

Post by asavage » 14 years ago

LD28 in Maximas (don't know about Marine/Industrial) have only TDC on the flywheel, nothing on the harmonic balancer.
Regards,
Al S.

1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.

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philip
Posts: 1494
Joined: 14 years ago
Location: Southern California, USA

#3

Post by philip » 14 years ago

asavage wrote:LD28 in Maximas (don't know about Marine/Industrial) have only TDC on the flywheel, nothing on the harmonic balancer.
You are kidding. The one mark is the ONLY mark and that is TDC .... not the 7° BTDC mark? How peculiar.
Last edited by philip 14 years ago, edited 1 time in total.
-Philip
Passed 08May2008
My friend, you are missed . . .

1982 Datsun 720KC SD-22

"Im slow and I'm ahead of you"

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asavage
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#4

Post by asavage » 14 years ago

You measure the VE's plunger lift at TDC, that's how you time it. No other marks are needed. Unlike the sloppy SD method of "well, when it starts/stops dripping fuel . . . ". :roll:
Regards,
Al S.

1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.

User avatar
philip
Posts: 1494
Joined: 14 years ago
Location: Southern California, USA

#5

Post by philip » 14 years ago

asavage wrote:That (timing) information is removed from the later manuals, and is pretty misleading, since there are not reference marks to use a 7° BTDC number: what would you do with it?

SNIP

You measure the VE's plunger lift at TDC, that's how you time it. No other marks are needed. Unlike the sloppy SD method of "well, when it starts/stops dripping fuel . . . ". :roll:
Ok ... NOW I remember you covering that procedure. A dial indicator or somesuch tool is required.

Regarding your diesel timing doohicky that allows the use of a strobe timing light. Does your timing light have a timing delay dial/provision that would permit you to verify the static/mechanical timing method?
-Philip
Passed 08May2008
My friend, you are missed . . .

1982 Datsun 720KC SD-22

"Im slow and I'm ahead of you"

User avatar
asavage
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#6

Post by asavage » 14 years ago

My antique timing light doesn't, but the Kent-Moore J-33300 does, built-in. And it displays the degrees offset digitally even (big deal in 1984 when this thing was made).
Regards,
Al S.

1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.

User avatar
philip
Posts: 1494
Joined: 14 years ago
Location: Southern California, USA

#7

Post by philip » 14 years ago

asavage wrote:My antique timing light doesn't, but the Kent-Moore J-33300 does, built-in. And it displays the degrees offset digitally even (big deal in 1984 when this thing was made).
So .... MILLIONS of anxious lurkers want to know how close the stroboscopic reading was. :)
-Philip
Passed 08May2008
My friend, you are missed . . .

1982 Datsun 720KC SD-22

"Im slow and I'm ahead of you"

User avatar
asavage
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Posts: 5349
Joined: 15 years ago
Location: Duvall, Wash.
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#8

Post by asavage » 14 years ago

I haven't ever timed an LD28 . . . and Joe has been too busy to shoot his engine after mechanically timing it. The Teeming Millions will just have to wait.
Regards,
Al S.

1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.

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