STD Tuning Engine how to know if 1987 300d model has #17 head

how to know if 1987 300d model has #17 head

how to know if 1987 300d model has #17 head

 
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tilldeath
Unregistered

18
08-26-2010, 03:45 AM #1
what do i look for in a 1987 300d turbo?
i hear that i need one with the #17 head.

how do i know if a car has the #17 head?

what do i look for?

can the vin also be traced?

if a car doesnt have the head. how hard is it to replace?
how much?
where do i get one?
do i have to pull the engine to replace the head?

thanks!
tilldeath
08-26-2010, 03:45 AM #1

what do i look for in a 1987 300d turbo?
i hear that i need one with the #17 head.

how do i know if a car has the #17 head?

what do i look for?

can the vin also be traced?

if a car doesnt have the head. how hard is it to replace?
how much?
where do i get one?
do i have to pull the engine to replace the head?

thanks!

aaa
GT2256V

913
08-26-2010, 04:33 AM #2
I'm pretty sure they all came with #14 heads to begin with, so the vin can't tell you anything.

The number is etched/cast somewhere around the third injector. Second group of digits from the right I think.
aaa
08-26-2010, 04:33 AM #2

I'm pretty sure they all came with #14 heads to begin with, so the vin can't tell you anything.

The number is etched/cast somewhere around the third injector. Second group of digits from the right I think.

winmutt
bitbanger

3,468
08-26-2010, 08:57 AM #3
Third group. #22 head is what you want.

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
08-26-2010, 08:57 AM #3

Third group. #22 head is what you want.


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

willbhere4u
Six in a row make her go!

2,507
08-26-2010, 10:04 AM #4
look by the 2-3 injector by the intake manifold the last two numbers are what you want

any thing 18 through 22 is a good updated casting/replacement

It's the original head #14 that's prone to cracking but if they don't ever get hot they last a long time

every number higher than 14 is a replacement!

the higher the # the more updates Mercedes did to it the latest being the # 22

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
08-26-2010, 10:04 AM #4

look by the 2-3 injector by the intake manifold the last two numbers are what you want

any thing 18 through 22 is a good updated casting/replacement

It's the original head #14 that's prone to cracking but if they don't ever get hot they last a long time

every number higher than 14 is a replacement!

the higher the # the more updates Mercedes did to it the latest being the # 22


1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

tilldeath
Unregistered

18
08-26-2010, 04:48 PM #5
thank you. i will look on the cars for the casting!

so a 1988 300d isnt better than a 1987 300d? or would it better due to the improvements?

i just notice that 1987 seems to be the pinnacle of power and reliability.
tilldeath
08-26-2010, 04:48 PM #5

thank you. i will look on the cars for the casting!

so a 1988 300d isnt better than a 1987 300d? or would it better due to the improvements?

i just notice that 1987 seems to be the pinnacle of power and reliability.

willbhere4u
Six in a row make her go!

2,507
08-26-2010, 05:08 PM #6
In 1988 I think it had a om605? 2.5 turbo 5cyl less power but still a very reliable engine!

In 1987 It had the om603 turbo 3.0 6cyl witch is a very good engine as well except for the head issue witch is only a real problem if it has been overheated!

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
08-26-2010, 05:08 PM #6

In 1988 I think it had a om605? 2.5 turbo 5cyl less power but still a very reliable engine!

In 1987 It had the om603 turbo 3.0 6cyl witch is a very good engine as well except for the head issue witch is only a real problem if it has been overheated!


1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

winmutt
bitbanger

3,468
08-26-2010, 09:24 PM #7
There was no 88 300d state side. If you found one its a rareity. None of the om60x engines are nearly as reliable as the 61x. The 87 has the most power until the late 90's. I am putting a #22 head on mine and going from there. It is thought that the #22 from the 90s 3.5L with the 3.0 block is the most reliable combination with most amount of power.

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
08-26-2010, 09:24 PM #7

There was no 88 300d state side. If you found one its a rareity. None of the om60x engines are nearly as reliable as the 61x. The 87 has the most power until the late 90's. I am putting a #22 head on mine and going from there. It is thought that the #22 from the 90s 3.5L with the 3.0 block is the most reliable combination with most amount of power.


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

tilldeath
Unregistered

18
08-27-2010, 06:20 PM #8
what was wrong with the models above 1987 that had a diesel?
why is the 3.5 liter not as good as the 1987?
seems like it would perfected by then?
or maybe they added emissions and experimented?
tilldeath
08-27-2010, 06:20 PM #8

what was wrong with the models above 1987 that had a diesel?
why is the 3.5 liter not as good as the 1987?
seems like it would perfected by then?
or maybe they added emissions and experimented?

winmutt
bitbanger

3,468
08-27-2010, 08:37 PM #9
87 heads warped and cracked if overheated, a good chance in 20x years.
3.5 had weak connecting rods and they all would get oval. Some replacement engines were put int but the numbers were not nearly as high as they should have been.

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
08-27-2010, 08:37 PM #9

87 heads warped and cracked if overheated, a good chance in 20x years.
3.5 had weak connecting rods and they all would get oval. Some replacement engines were put int but the numbers were not nearly as high as they should have been.


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

 
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