Better alternator option
#46
Rennlist Member
The hose end that was on the alt needs to be situated such that it gets fresh air while moving and you still won’t have accurate readings when stationary as no air will be moving past sensor.
#48
Drifting
Thread Starter
No. I'm recommending a regulator swap. The standard Contour alternator uses a regulator with a function known as load response control (LRC.) I've now used two Contour regulators on this alternator. Was one the regulator on it from the junk yard, the other was a brand new Motorcraft branded Contour regulator. I ultimately went with a different regulator that has no LRC.
#49
Drifting
Thread Starter
i was looking at this guy.... but the wiring looks to be different.....
http://www.ebay.com/itm/281047039196...S:1123&vxp=mtr
http://www.ebay.com/itm/281047039196...S:1123&vxp=mtr
#51
Rennlist Member
It certainly does! Without the bosch you can’t mount the shroud. Without the shroud there is nowhere to attach the hose. The alt fan is what moves air through the hose. Without air movement past the sensor you don’t have accurate readings.
The hose end that was on the alt needs to be situated such that it gets fresh air while moving and you still won’t have accurate readings when stationary as no air will be moving past sensor.
The hose end that was on the alt needs to be situated such that it gets fresh air while moving and you still won’t have accurate readings when stationary as no air will be moving past sensor.
I think it is fair to say that very little is known about the function of the ext temp sensor in the disconnected hose. Obviously it is not a major issue, but I would be interested in maintaining that functionality.
I'm thinking about upgrading to one of these alternators, removing the hose, and creating a small housing for the sensor that bolts on to the wheel well panel as in the stock configuration. If airflow was an issue, a small fan could be used to stir things up. I suppose a filter could be added to keep it relatively clean. All of this is probably an over-engineering exercise.
#53
Nordschleife Master
What is the normal air circulation path with these new alternators?
Do they have an internal fan or anything?
Figure out where IN is and route the hose to that spot.
Do they have an internal fan or anything?
Figure out where IN is and route the hose to that spot.
#54
Rennlist Member
Somebody else asked about cooling; the Bosch sucks air from the back through the duct, these alternators pull air from the front, so hot air from the ground and radiators is pulled into the alternator - not a ideal cooling solution.
#55
Rennlist Member
Now convince that to the ghetto punks that you can feel/hear coming from three blocks away.
And as it does, it is constantly pulling fresh air past the temp sensor. Fixing the hose to point forward behind the grill will reverse the direction but still provide air movement past the sensor while driving.
#56
Rennlist Member
Rennlist Site Sponsor
"Somebody else asked about cooling; the Bosch sucks air from the back through the duct, these alternators pull air from the front, so hot air from the ground and radiators is pulled into the alternator - not a ideal cooling solution. "
Perhaps - but every alternator that I am familiar with uses a centrifugal fan on the back of the pulley to pull air from the back of the alternator and discharge from the front.
On the 928, pulling air from the back with no shroud and hose pulls very hot air that has gone thru the condenser, oil cooler and radiator, and has then been heated by the exhaust manifold and treated to occasional droplets of ATF from the leaking power steering system. I prefer to have the shroud and hose on mine...
Perhaps - but every alternator that I am familiar with uses a centrifugal fan on the back of the pulley to pull air from the back of the alternator and discharge from the front.
On the 928, pulling air from the back with no shroud and hose pulls very hot air that has gone thru the condenser, oil cooler and radiator, and has then been heated by the exhaust manifold and treated to occasional droplets of ATF from the leaking power steering system. I prefer to have the shroud and hose on mine...
#57
i adapted the shroud to fit on the back of the GM camero alternator. does not seal 100% but better than nothing. i do plan to try this Contour alternator/f150 reg mod at anyrate.
#60
Rennlist Member
I guess the question is, "how do you order that?"
I figure my Autozone guy will have no idea.
I'll look at VR's on some websites and see if "nonLRC" is mentioned.
Also, from the posts, it seems this is a "no go" for '84 and earlier cars?
Great write-up!
I figure my Autozone guy will have no idea.
I'll look at VR's on some websites and see if "nonLRC" is mentioned.
Also, from the posts, it seems this is a "no go" for '84 and earlier cars?
Great write-up!