A Manufacturer of substandard parts, much like "Uro".sansouci wrote:I guess I'm dense: what is an MTC?
No heat at highway speeds //M6
Moderators: GRNSHRK, ron, bfons
Blistering cold here....
Gotta shout-out to Barry for fixing me up with a damn nice used
heater valve. Installed it about a month ago.
Very nice and toasty warm in the Bavarian Ferarri. It was very cold other
morning and I had it at Max temperature. Whoa, that nearly melted my
rubber soles..
After doing a autopsy on the 1987 valve, the solenoid was weak and could not
hold the valve in place.
I have the plastic unit if someone has a cracked housing.
Free plus shipping.
Gotta help a brother stay warm
heater valve. Installed it about a month ago.
Very nice and toasty warm in the Bavarian Ferarri. It was very cold other
morning and I had it at Max temperature. Whoa, that nearly melted my
rubber soles..
After doing a autopsy on the 1987 valve, the solenoid was weak and could not
hold the valve in place.
I have the plastic unit if someone has a cracked housing.
Free plus shipping.
Gotta help a brother stay warm
I'll take that housing. I tried fixing the MTC valve I have and no dice. It still closes off over 2500 rpm.
I will move forward with a direct acting valve conversion and using an OEM housing could let me keep the check valve and use the stock mounting points easily.
I'll PM you.
Jose
I will move forward with a direct acting valve conversion and using an OEM housing could let me keep the check valve and use the stock mounting points easily.
I'll PM you.
Jose
1987 M6 - My dream car
Big thanks to all who have contributed to this topic. My Bosch valve had a tear in the diaphragm, so I bought the MTC valve. It exhibited the same symptoms (no heat above 2k rpm), so I was glad to read about swapping the plastic spacer from the Bosch to the MTC. It works like a champ now!
The Bosch spacer itself has a larger inner diameter (as previously stated), but it also has three ridges that keep it centered on the shaft, as opposed to a perfectly smooth bore.
(Also, in case you are contemplating doing this and did not already know, the heater valve is located in such a way that you do not have to drain the coolant to remove it. Two small bolts and 4 small screws is all you have to remove. However, it is a bit tricky to get the E-ring back on after swapping the spacers - just be patient.)
Joel
The Bosch spacer itself has a larger inner diameter (as previously stated), but it also has three ridges that keep it centered on the shaft, as opposed to a perfectly smooth bore.
(Also, in case you are contemplating doing this and did not already know, the heater valve is located in such a way that you do not have to drain the coolant to remove it. Two small bolts and 4 small screws is all you have to remove. However, it is a bit tricky to get the E-ring back on after swapping the spacers - just be patient.)
Joel
1983 633CSi 5-speed Black & Tan
2008 X5 4.8i
2004 MINI Cooper S 6-speed
2001 Z3 3.0i 5-speed
DFW Texas
2008 X5 4.8i
2004 MINI Cooper S 6-speed
2001 Z3 3.0i 5-speed
DFW Texas
I'm revisting this thead.
Mine is doing same (closing at 2000rpm). Has anyone replaced the valve with a N.O. 12v solenoid valve?
It's really annoying having the heat stop when cruising in cold weather.
Also what is the pipe size as it's a bit of a pain to measure the valve as I have the plenum in the way.
Mine is doing same (closing at 2000rpm). Has anyone replaced the valve with a N.O. 12v solenoid valve?
It's really annoying having the heat stop when cruising in cold weather.
Also what is the pipe size as it's a bit of a pain to measure the valve as I have the plenum in the way.
BMW’s
84 E24 M635csi
90 E34 M5 3.6
94 E34 540i/6 SC E85
97 E36 M3 euro SC U/C
97 Z3 2.8 widebody
OTHERS
11 Audi S5 3.0 SC
19 VW Amarok V6
84 E24 M635csi
90 E34 M5 3.6
94 E34 540i/6 SC E85
97 E36 M3 euro SC U/C
97 Z3 2.8 widebody
OTHERS
11 Audi S5 3.0 SC
19 VW Amarok V6