STD Tuning Engine Working tacho from om605 CPS sensor?

Working tacho from om605 CPS sensor?

Working tacho from om605 CPS sensor?

 
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MrHope
GT2256V

112
01-17-2015, 10:02 AM #1
anyone have a solution to get a aftermarket tach to work with the standard Crank sensor on the 605/606 ?

.
W460 300GD with om605 Turbo 6mm pump Build Thread!
W124 300D 1985 (daily driver)
MrHope
01-17-2015, 10:02 AM #1

anyone have a solution to get a aftermarket tach to work with the standard Crank sensor on the 605/606 ?


.
W460 300GD with om605 Turbo 6mm pump Build Thread!
W124 300D 1985 (daily driver)

F.R.A.S
Holset

579
01-18-2015, 04:46 AM #2
You gonna use it in a G right? How does the stock tacho get its signal? Most Mercedes diesel engines pick up on the starter ring, except the turbo 605/606. If you're lucky you can just mount the pickup on the starter ring and wire it to the stock tacho Tongue

To answer your question: I have no idea Sad

(01-17-2015, 10:02 AM)MrHope anyone have a solution to get a aftermarket tach to work with the standard Crank sensor on the 605/606 ?

F-tune Performance [Image: V-band_om606.jpg] [Image: GTX3582R.jpg] [Image: gs6-53dz_gearbox.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.
F.R.A.S
01-18-2015, 04:46 AM #2

You gonna use it in a G right? How does the stock tacho get its signal? Most Mercedes diesel engines pick up on the starter ring, except the turbo 605/606. If you're lucky you can just mount the pickup on the starter ring and wire it to the stock tacho Tongue

To answer your question: I have no idea Sad

(01-17-2015, 10:02 AM)MrHope anyone have a solution to get a aftermarket tach to work with the standard Crank sensor on the 605/606 ?


F-tune Performance [Image: V-band_om606.jpg] [Image: GTX3582R.jpg] [Image: gs6-53dz_gearbox.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.

01-18-2015, 10:16 AM #3
there must be a crank signal somewhere... Or you go the old fashioned way via the alternator

What signal does the tacho need???
This post was last modified: 01-18-2015, 10:18 AM by DiseaselWeasel.

____________________________________

'88 300CD Turbo Coupé - OM603
DiseaselWeasel
01-18-2015, 10:16 AM #3

there must be a crank signal somewhere... Or you go the old fashioned way via the alternator

What signal does the tacho need???


____________________________________

'88 300CD Turbo Coupé - OM603

mantahead
Holset

600
01-18-2015, 03:03 PM #4
hi,
i fitted an alternator with W terminal on my om606, and wired it up to a large type r rev counter,but couldn't get it calibrated correctly,must need resistors or something as its designed to work of coil.
it was reading about 3k revs at idle.
mantahead
01-18-2015, 03:03 PM #4

hi,
i fitted an alternator with W terminal on my om606, and wired it up to a large type r rev counter,but couldn't get it calibrated correctly,must need resistors or something as its designed to work of coil.
it was reading about 3k revs at idle.

MrHope
GT2256V

112
01-18-2015, 04:22 PM #5
yes im supposed to have it in my Gwagen originally it has no tach .
but i have a tach from anotoher Gwagen but its from a 6 cylinder gasoline.

how many pulses does a 6 cyl gas engine on one rev ?

the 605 from w124 reads the starter teeth
the 605 from w202 reads from humps on backside of flywheel (5 humps)

im using an universal tach now that reads W-signal from gen, but im not sure i reads right...

what would the gasoline tach say about the 5 signals from CPS sensor?

.
W460 300GD with om605 Turbo 6mm pump Build Thread!
W124 300D 1985 (daily driver)
MrHope
01-18-2015, 04:22 PM #5

yes im supposed to have it in my Gwagen originally it has no tach .
but i have a tach from anotoher Gwagen but its from a 6 cylinder gasoline.

how many pulses does a 6 cyl gas engine on one rev ?

the 605 from w124 reads the starter teeth
the 605 from w202 reads from humps on backside of flywheel (5 humps)

im using an universal tach now that reads W-signal from gen, but im not sure i reads right...

what would the gasoline tach say about the 5 signals from CPS sensor?


.
W460 300GD with om605 Turbo 6mm pump Build Thread!
W124 300D 1985 (daily driver)

F.R.A.S
Holset

579
01-18-2015, 05:23 PM #6
I'm not sure how the petrol engines read rev. How ever if it's not by five "humps" you can just mimic the petrol way by a piece of 3mm sheet metal and any machine shop can mill the pattern out for you. A more or less stock solution is always the best Smile

Don't do stainless or aluminum Smile Has to be magnetic.

(01-18-2015, 04:22 PM)MrHope yes im supposed to have it in my Gwagen originally it has no tach .
but i have a tach from anotoher Gwagen but its from a 6 cylinder gasoline.

how many pulses does a 6 cyl gas engine on one rev ?

the 605 from w124 reads the starter teeth
the 605 from w202 reads from humps on backside of flywheel (5 humps)

im using an universal tach now that reads W-signal from gen, but im not sure i reads right...

what would the gasoline tach say about the 5 signals from CPS sensor?

F-tune Performance [Image: V-band_om606.jpg] [Image: GTX3582R.jpg] [Image: gs6-53dz_gearbox.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.
F.R.A.S
01-18-2015, 05:23 PM #6

I'm not sure how the petrol engines read rev. How ever if it's not by five "humps" you can just mimic the petrol way by a piece of 3mm sheet metal and any machine shop can mill the pattern out for you. A more or less stock solution is always the best Smile

Don't do stainless or aluminum Smile Has to be magnetic.

(01-18-2015, 04:22 PM)MrHope yes im supposed to have it in my Gwagen originally it has no tach .
but i have a tach from anotoher Gwagen but its from a 6 cylinder gasoline.

how many pulses does a 6 cyl gas engine on one rev ?

the 605 from w124 reads the starter teeth
the 605 from w202 reads from humps on backside of flywheel (5 humps)

im using an universal tach now that reads W-signal from gen, but im not sure i reads right...

what would the gasoline tach say about the 5 signals from CPS sensor?


F-tune Performance [Image: V-band_om606.jpg] [Image: GTX3582R.jpg] [Image: gs6-53dz_gearbox.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.

mantahead
Holset

600
05-10-2015, 01:11 PM #7
hi,
any luck with the tacho?

i found that starter ring sensor on an old n/a om606 engine i had, i drilled my engine in the car from underneath and fitted it in the same place.
i wired it up to the large type r tacho, it reads backways, 4500rpm at idle and goes to zero if you rev it, lol, any ideas anyone?
mantahead
05-10-2015, 01:11 PM #7

hi,
any luck with the tacho?

i found that starter ring sensor on an old n/a om606 engine i had, i drilled my engine in the car from underneath and fitted it in the same place.
i wired it up to the large type r tacho, it reads backways, 4500rpm at idle and goes to zero if you rev it, lol, any ideas anyone?

seanyt
is300d He351ve

279
05-10-2015, 01:20 PM #8
Ive to do this on my own car. Ill plan on using a tacho amp circuit that will read the existing crank sensors and convert the VR signal into a pulse that my existing clock will use.
Original engine was a 6 cylinder petrol and the crank signal will still be going to my ecu.
The circuit im using is based off a w124 tacho amp. using an lm1815n chip and a few resistors and capacitors .

I actually need to build two of them so hopefully it works .
My om606 has 6 tabs on the flexplate so matchs what the clocks want to see per revolution.
seanyt
05-10-2015, 01:20 PM #8

Ive to do this on my own car. Ill plan on using a tacho amp circuit that will read the existing crank sensors and convert the VR signal into a pulse that my existing clock will use.
Original engine was a 6 cylinder petrol and the crank signal will still be going to my ecu.
The circuit im using is based off a w124 tacho amp. using an lm1815n chip and a few resistors and capacitors .

I actually need to build two of them so hopefully it works .
My om606 has 6 tabs on the flexplate so matchs what the clocks want to see per revolution.

mantahead
Holset

600
05-10-2015, 01:41 PM #9
i am using an older flywheel so no humps on it
mantahead
05-10-2015, 01:41 PM #9

i am using an older flywheel so no humps on it

seanyt
is300d He351ve

279
05-10-2015, 02:58 PM #10
Something from dakota digital would probably do the trick so.
seanyt
05-10-2015, 02:58 PM #10

Something from dakota digital would probably do the trick so.

MrHope
GT2256V

112
05-10-2015, 04:03 PM #11
Mantahead:
im using a sensor that reads the flywheel ring gear.
My sensor has 2 wires , the brown one to GND and the other one to signal on tacho.
works fine! has to bee a diesel tacho ! that only goes to 6000rpm

.
W460 300GD with om605 Turbo 6mm pump Build Thread!
W124 300D 1985 (daily driver)
MrHope
05-10-2015, 04:03 PM #11

Mantahead:
im using a sensor that reads the flywheel ring gear.
My sensor has 2 wires , the brown one to GND and the other one to signal on tacho.
works fine! has to bee a diesel tacho ! that only goes to 6000rpm


.
W460 300GD with om605 Turbo 6mm pump Build Thread!
W124 300D 1985 (daily driver)

raysorenson
Superturbo

1,162
05-10-2015, 06:00 PM #12
(05-10-2015, 02:58 PM)seanyt Something from dakota digital would probably do the trick so.

This. They sell a VR sensor for flywheel teeth to work on the diesels. Drill a hole in bell housing, adjust sensor air gap.
raysorenson
05-10-2015, 06:00 PM #12

(05-10-2015, 02:58 PM)seanyt Something from dakota digital would probably do the trick so.

This. They sell a VR sensor for flywheel teeth to work on the diesels. Drill a hole in bell housing, adjust sensor air gap.

mantahead
Holset

600
05-12-2015, 03:42 PM #13
(05-10-2015, 04:03 PM)MrHope Mantahead:
im using a sensor that reads the flywheel ring gear.
My sensor has 2 wires , the brown one to GND and the other one to signal on tacho.
works fine! has to bee a diesel tacho ! that only goes to 6000rpm

hi mate,
im using original sensor of om606 n/a thats reads ring gear, wired the same way, only works back ways on tacho, tacho is large type r designed for petrol ignition coil

so that dakota digitial box would convert my alternator signal to work on my rev counter, it says 4 cylinder or 8 in their description, should that matter on my 6 cylinder?
This post was last modified: 05-12-2015, 03:46 PM by mantahead.
mantahead
05-12-2015, 03:42 PM #13

(05-10-2015, 04:03 PM)MrHope Mantahead:
im using a sensor that reads the flywheel ring gear.
My sensor has 2 wires , the brown one to GND and the other one to signal on tacho.
works fine! has to bee a diesel tacho ! that only goes to 6000rpm

hi mate,
im using original sensor of om606 n/a thats reads ring gear, wired the same way, only works back ways on tacho, tacho is large type r designed for petrol ignition coil

so that dakota digitial box would convert my alternator signal to work on my rev counter, it says 4 cylinder or 8 in their description, should that matter on my 6 cylinder?

raysorenson
Superturbo

1,162
05-12-2015, 06:06 PM #14
Mantahead, this is the Dakota digital thing I was talking about.

http://www.dakotadigital.com/index.cfm/p...prd129.htm
raysorenson
05-12-2015, 06:06 PM #14

Mantahead, this is the Dakota digital thing I was talking about.

http://www.dakotadigital.com/index.cfm/p...prd129.htm

mantahead
Holset

600
05-15-2015, 02:14 PM #15
(05-12-2015, 06:06 PM)raysorenson Mantahead, this is the Dakota digital thing I was talking about.

http://www.dakotadigital.com/index.cfm/p...prd129.htm

cheers man
mantahead
05-15-2015, 02:14 PM #15

(05-12-2015, 06:06 PM)raysorenson Mantahead, this is the Dakota digital thing I was talking about.

http://www.dakotadigital.com/index.cfm/p...prd129.htm

cheers man

 
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