STD Tuning Engine OM605 shaking

OM605 shaking

OM605 shaking

 
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addi.bigg
OM605; 7,5mm elements

94
11-29-2017, 12:43 PM #1
Buddies,

My OM605 shakes sometimes at idle. I couldn't define any exact status when it is doing that, it also happens cold and hot, no matter how much I've driven before. Just one thing maybe, when I stop at the traffic light it may not shake but after a 20-30 seconds it can start also. What do you think what should I take a deeper look on? Nozzles? 

OM603 mechanical pump, 7,5mm elements. Pump has been restored not much ago. Timing is on the original signing.

Thanks!
addi.bigg
11-29-2017, 12:43 PM #1

Buddies,

My OM605 shakes sometimes at idle. I couldn't define any exact status when it is doing that, it also happens cold and hot, no matter how much I've driven before. Just one thing maybe, when I stop at the traffic light it may not shake but after a 20-30 seconds it can start also. What do you think what should I take a deeper look on? Nozzles? 

OM603 mechanical pump, 7,5mm elements. Pump has been restored not much ago. Timing is on the original signing.

Thanks!

addi.bigg
OM605; 7,5mm elements

94
11-29-2017, 12:50 PM #2
(11-29-2017, 12:43 PM)addi.bigg Buddies,

My OM605 shakes sometimes at idle. I couldn't define any exact status when it is doing that, it also happens cold and hot, no matter how much I've driven before. Just one thing maybe, when I stop at the traffic light it may not shake but after a 20-30 seconds it can start also. What do you think what should I take a deeper look on? Nozzles? 

OM603 mechanical pump, 7,5mm elements. Pump has been restored not much ago. Timing is on the original signing.

Thanks!

The engine has a voice at idle like in this video at idle.

https://www.youtube.com/watch?v=cmDAwMYEBGU
addi.bigg
11-29-2017, 12:50 PM #2

(11-29-2017, 12:43 PM)addi.bigg Buddies,

My OM605 shakes sometimes at idle. I couldn't define any exact status when it is doing that, it also happens cold and hot, no matter how much I've driven before. Just one thing maybe, when I stop at the traffic light it may not shake but after a 20-30 seconds it can start also. What do you think what should I take a deeper look on? Nozzles? 

OM603 mechanical pump, 7,5mm elements. Pump has been restored not much ago. Timing is on the original signing.

Thanks!

The engine has a voice at idle like in this video at idle.

https://www.youtube.com/watch?v=cmDAwMYEBGU

whipplem104
Holset

559
11-29-2017, 01:44 PM #3
If it is intermittent then it is your pump. Probably a delivery valve sticking.
Sounds like a modified pump.
whipplem104
11-29-2017, 01:44 PM #3

If it is intermittent then it is your pump. Probably a delivery valve sticking.
Sounds like a modified pump.

addi.bigg
OM605; 7,5mm elements

94
11-30-2017, 01:10 AM #4
(11-29-2017, 01:44 PM)whipplem104 If it is intermittent then it is your pump. Probably a delivery valve sticking.
Sounds like a modified pump.

The pump has 7,5mm elements. It is in good condition, also the power is perfect. 
The pump has to be disassembled to cure sticking valve if that is the problem?
This post was last modified: 11-30-2017, 01:15 AM by addi.bigg.
addi.bigg
11-30-2017, 01:10 AM #4

(11-29-2017, 01:44 PM)whipplem104 If it is intermittent then it is your pump. Probably a delivery valve sticking.
Sounds like a modified pump.

The pump has 7,5mm elements. It is in good condition, also the power is perfect. 
The pump has to be disassembled to cure sticking valve if that is the problem?

starynovy
Holset

338
11-30-2017, 05:43 AM #5
No, just delivery valves which are on top. So no further dismantling is needed no calibration.

-------------------------------------------------------------------------------------------------------------------------
Ex: 525tds 130kW, C250TD 160kW, E320CDI 200kW, ML400CDI 230kW, A6 R5TDI 130kW
Now: Q7 V8TDI 240kW, 320d 150kW, 335d 210kW
starynovy
11-30-2017, 05:43 AM #5

No, just delivery valves which are on top. So no further dismantling is needed no calibration.


-------------------------------------------------------------------------------------------------------------------------
Ex: 525tds 130kW, C250TD 160kW, E320CDI 200kW, ML400CDI 230kW, A6 R5TDI 130kW
Now: Q7 V8TDI 240kW, 320d 150kW, 335d 210kW

Fishman
GTA2056V

92
11-30-2017, 06:26 AM #6
Can a sticking valve do any harm? Mine does the same up to 1500 rpm than smooths out.
Fishman
11-30-2017, 06:26 AM #6

Can a sticking valve do any harm? Mine does the same up to 1500 rpm than smooths out.

addi.bigg
OM605; 7,5mm elements

94
11-30-2017, 02:42 PM #7
(11-30-2017, 05:43 AM)starynovy No, just delivery valves which are on top. So no further dismantling is needed no calibration.

A few drops of engine oil inside?
addi.bigg
11-30-2017, 02:42 PM #7

(11-30-2017, 05:43 AM)starynovy No, just delivery valves which are on top. So no further dismantling is needed no calibration.

A few drops of engine oil inside?

starynovy
Holset

338
11-30-2017, 05:35 PM #8
Nope.. it is submerged in high pressure diesel so oil will not help. If it would stick you can lap it or change it.

-------------------------------------------------------------------------------------------------------------------------
Ex: 525tds 130kW, C250TD 160kW, E320CDI 200kW, ML400CDI 230kW, A6 R5TDI 130kW
Now: Q7 V8TDI 240kW, 320d 150kW, 335d 210kW
starynovy
11-30-2017, 05:35 PM #8

Nope.. it is submerged in high pressure diesel so oil will not help. If it would stick you can lap it or change it.


-------------------------------------------------------------------------------------------------------------------------
Ex: 525tds 130kW, C250TD 160kW, E320CDI 200kW, ML400CDI 230kW, A6 R5TDI 130kW
Now: Q7 V8TDI 240kW, 320d 150kW, 335d 210kW

erx
w202 om606

323
11-30-2017, 05:57 PM #9
Usually delivery valves don't stick, they just fail due to careless pump installation when dust gets in from fuel lines and even smallest dust can ruin delivery valve seat or even element tip. If it sometimes runs smooth then maybe dust particle is stuck in valve seat and maybe it just needs cleaning. Try to loosen injector lines one by one at idle to make sure which cyl is problematic.
erx
11-30-2017, 05:57 PM #9

Usually delivery valves don't stick, they just fail due to careless pump installation when dust gets in from fuel lines and even smallest dust can ruin delivery valve seat or even element tip. If it sometimes runs smooth then maybe dust particle is stuck in valve seat and maybe it just needs cleaning. Try to loosen injector lines one by one at idle to make sure which cyl is problematic.

baldur
Fast

506
11-30-2017, 07:05 PM #10
I've seen the delivery valve springs break.

Baldur Gislason

baldur
11-30-2017, 07:05 PM #10

I've seen the delivery valve springs break.


Baldur Gislason

Fishman
GTA2056V

92
12-03-2017, 04:58 AM #11
Anybody got the part nr for the seals?
Fishman
12-03-2017, 04:58 AM #11

Anybody got the part nr for the seals?

baldur
Fast

506
12-03-2017, 09:03 AM #12
(12-03-2017, 04:58 AM)Fishman Anybody got the part nr for the seals?

This is where I always get them from:
https://www.ebay.com/itm/BOSCH-diesel-pu...2749.l2649

Baldur Gislason

baldur
12-03-2017, 09:03 AM #12

(12-03-2017, 04:58 AM)Fishman Anybody got the part nr for the seals?

This is where I always get them from:
https://www.ebay.com/itm/BOSCH-diesel-pu...2749.l2649


Baldur Gislason

addi.bigg
OM605; 7,5mm elements

94
12-14-2017, 01:18 PM #13
Trying the Liqui Moly (Lubro Moly) Diesel Purge cleaning would worth anything? Both for pump and nozzles. Ideas?
This post was last modified: 12-14-2017, 01:19 PM by addi.bigg.
addi.bigg
12-14-2017, 01:18 PM #13

Trying the Liqui Moly (Lubro Moly) Diesel Purge cleaning would worth anything? Both for pump and nozzles. Ideas?

addi.bigg
OM605; 7,5mm elements

94
01-08-2018, 03:08 PM #14
Actually I think the delivery valve really sticked as ione of the cylinders didn't run for a 20-30 seconds in idle, and after that started again.
The diassembly to clean the delivery valve means what this guy shows, so untight the upper side and clean everything above the copper washer?

https://www.youtube.com/watch?v=PlB0Uc1qdUk&t=389s
addi.bigg
01-08-2018, 03:08 PM #14

Actually I think the delivery valve really sticked as ione of the cylinders didn't run for a 20-30 seconds in idle, and after that started again.
The diassembly to clean the delivery valve means what this guy shows, so untight the upper side and clean everything above the copper washer?

https://www.youtube.com/watch?v=PlB0Uc1qdUk&t=389s

 
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