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76

Omega General Help / Re: How does HBV work V6

« on: 24 July 2017, 09:51:43 »

HBV never shuts all the way to specific position, there is always a little flow to everywhere at least that is what happens when the HBV is out of car and tested with under pressure pump.

When normal situation, water flows trough the upper and when under pressure flows trough the lower.

It's just that my HBV doesn't always go back to normal situation 
As able to confirm that when engine stop, ignition on, heater set to high and also some blow set sometimes the car cools down quickly and sometimes not at all.
So does it mean HBV broken or could it be the controlling that doesn't always open the HBV?

77

Omega Electrical and Audio Help / Re: Cooling system switches and sensors

« on: 24 July 2017, 08:39:50 »

Temp sensor smaller at the bridge ~~0.9kohm at ~~25 degree
Temp sensor larger at the bridge ~~2.9kohm at ~~25 degree

No significance difference between old and new, resistant descending when heat applied.

78

Omega Electrical and Audio Help / Re: Cooling system switches and sensors

« on: 19 July 2017, 10:28:33 »

Can you spin all the fans by hand? Fronts can sieze

All fans are spinning at some point.

79

Omega Electrical and Audio Help / Re: Cooling system switches and sensors

« on: 19 July 2017, 06:00:34 »

Bosch electric pump from package 2.7 Ohms, when running ~400mA, running good.
Bosch electric pump (might be original -99) ~130 Ohms, when running ~900mA, sounds like running half speed.
Some fancy brand electric pump (1 year old) 9.8 Ohms, when running  no mA tested but sound horrible and lets some water trough seals.

More information coming after I get those sensors in my hands


Maybe the front fans will not spin when motor isn't in operation temperature yet when ac on? 
Otherwise the fans then works fine I guess

80

Omega Gallery / Re: drakos, omega trackday toy

« on: 18 July 2017, 12:00:25 »

Well that isn't nice at all... hope you will be okay for now on!

I think is safe to say that we all look forward to see your project coming on!

81

Omega Gallery / Re: humbucker's 2004 Irmscher MV6 #irmscherMV6

« on: 18 July 2017, 11:58:16 »

Where is our updates?

82

Omega Electrical and Audio Help / Cooling system switches and sensors

« on: 18 July 2017, 11:54:41 »

Car -99, MV6, X30XE, climate control: Automatic

Is there some electrical resistant values for temperature sensors in the "bridge" and for sensors/switches at the radiator? To confirm they are working properly?


Side question:
The fan on the engine side is almost always on when climate control is set to cold(low is not needed)
The two fans on the front goes on at ~96-97 degree maybe not on full speed can't really tell as no experience of those going full speed.
Are the fans working correctly?

83

Omega General Help / Re: How does HBV work V6

« on: 14 July 2017, 09:53:36 »

Yes hbv, there are 2 ports on one side

All im saying is to not to mix them up when reinstalling

Okay, yes I'll be careful:)

84

Omega General Help / Re: How does HBV work V6

« on: 13 July 2017, 17:06:02 »

Also the pre heater that I'm going to install will work just fine pumping into the heater matrix because then the HBV is not vacuumed and the water can go to engine trough HBV... I am right, am I?

Yes, that should be OK. Pre-heated coolant will circulate through both the heater matrix and engine block, which is what you want.

Okay, thanks. It's all clearing up step by step

If the valve is connected upside down it will work opposite to what you set the heater dial/ climate control to, so hot becomes cold and vice versa

Which valve you are talking here? HBV?

85

Omega General Help / Re: How does HBV work V6

« on: 13 July 2017, 16:00:01 »

If the heater matrix is connected to the lower port, you'll get hot air on the cold setting and cold air on the hot.

I have done it, and wasted the cup full or so of coolant then having to remove the 2 pipes again to correct it

I'm sorry can't understand this?
If I force warm coolant with pump to the heater matrix lower connection, happens what you said? or what did you mean?

86

Omega General Help / Re: How does HBV work V6

« on: 13 July 2017, 15:20:26 »

From memory, the connection to the HBV goes into the nose of the pump and the feed to the heater matrix (bulk head connection, top) is from the side due to the fact its an impeller pump

Your drawing suggests that the t-piece pipe connects to the HBV, heater matrix return pipe and the pump, is that correct?

Usually its to the HBV (lower from memory) connection, heater matrix return (lower connection) and the coolant return pipe from rad (stainless pipe to the rear of block).

The nose of the pump goes to heater matrix, I have double checked that now.

Yes the drawing is right, it goes to lower connection of the heater matrix but it just goes trough the pump.


So I think that the electric pump is going to be removed or then put under manual switch because:

In situation where the HBV is vacuumed it doesn't matter which way the pump is pumping it's either creating a pressure or then underperssure to the heater matrix and HBV. . Am I right?

When the HBV is not vacuumed then there could be the pump pumping but only pumping out of the heater matrix because if it would pump against the heater matrix there would be two ways going in.... Am I right?


Also the pre heater that I'm going to install will work just fine pumping into the heater matrix because then the HBV is not vacuumed and the water can go to engine trough HBV... I am right, am I?

87

Omega General Help / Re: How does HBV work V6

« on: 13 July 2017, 13:23:40 »

Be aware that on pre-facelift cars the aux pump runs when ever the ignition is on to increase heat up times in the cabin (there was no cabin residual heat option on the early setup)

Well That explains why it's on all the time. Now i need to think why it's in wrong flow direction....

88

Omega General Help / Re: How does HBV work V6

« on: 13 July 2017, 13:03:40 »

No. The HBV is either in one state or the other. It probably only bypasses when maximum cooling is required, because normally some heat is used in addition to air conditioning even in summer to achieve the desired temperature at the vents.

A tech 2 is required to check the climate panel config.

I removed my electric pump when I fitted LPG and haven't noticed any issues with heating. I'm guessing that you rely more on the heater in Finnish winters, however!

Thank you, I'll probably inform what did I do.

89

Omega General Help / Re: How does HBV work V6

« on: 13 July 2017, 12:46:26 »

OK, the HBV is vacuum operated and without vacuum (engine off) the position of the valve is such that it allows flow through the heater matrix. When vacuum is applied, it bypasses the heater matrix.

This probably means that you can plumb the pre-heater into the circuit where the pump currently is and it will work fine, since it only runs when the engine is stopped.

As to the direction of flow of the pump, I ditched mine a long time ago so I can't check but, if it only operates with the engine stopped, I guess it probably doesn't matter which direction it pumps.

If the climate panel is configured not to have the pump installed, the pump runs all the time, I believe. Could it be that the climate panel has been swapped, or maybe it has the wrong config?

Okay, also one more: is it on/off or can it be in some case like 50% open/close?

Is it easy to find out what is config the climate panel has?

Car is brought to Finland from German in early 00s, so there might be some issues with it.

90

Omega General Help / Re: How does HBV work V6

« on: 13 July 2017, 10:42:13 »

The reason why asking all of this and trying to understand the flow, vacuum and HBV is because I'm going to buy a hose heater and it comes to same place as the electric pump is now.

I need to understand the flow before installing the hose heater, otherwise it will break something because it has own pump in it.

When engine and ignition is off, in which state is the HBV? Does it matter in which setting you leaved the heater controls before shutdown?