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Coolant Hoses/Passages on 3800 by mitchjl22
Started on: 10-10-2013 01:59 AM
Replies: 9 (598 views)
Last post by: FIEROFLYER on 10-16-2013 03:11 PM
mitchjl22
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Report this Post10-10-2013 01:59 AM Click Here to See the Profile for mitchjl22Click Here to Email mitchjl22Send a Private Message to mitchjl22Edit/Delete MessageReply w/QuoteDirect Link to This Post
I searched and read every article, but I'm still confused. I tried to find a picture like the one i'm posting and couldn't find anything. I'm attaching to an 87GT. Do I need a modified thermostat housing? Where do these coolant lines go?



-Mitch
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MstangsBware
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Report this Post10-10-2013 03:03 AM Click Here to See the Profile for MstangsBwareClick Here to Email MstangsBwareSend a Private Message to MstangsBwareEdit/Delete MessageReply w/QuoteDirect Link to This Post
U dont need a modded t stat housing but its nice to have as a fill point. If u dong wanna go that route the run ur one heater hose to the fitting in the LIM..Then plug the small hole on the front housing.

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mitchjl22
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Report this Post10-10-2013 03:31 AM Click Here to See the Profile for mitchjl22Click Here to Email mitchjl22Send a Private Message to mitchjl22Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by MstangsBware:

U dont need a modded t stat housing but its nice to have as a fill point. If u dong wanna go that route the run ur one heater hose to the fitting in the LIM..Then plug the small hole on the front housing.


Ok. So run heater hose to purple. Then Block off the Red. What about the orange? Does that get blocked as well? Pink goes to the passenger coolant tube correct?
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MstangsBware
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Report this Post10-10-2013 04:42 AM Click Here to See the Profile for MstangsBwareClick Here to Email MstangsBwareSend a Private Message to MstangsBwareEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by mitchjl22:


Ok. So run heater hose to purple. Then Block off the Red. What about the orange? Does that get blocked as well? Pink goes to the passenger coolant tube correct?


Orange aa is where PS mount. Yes to pink..
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olejoedad
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Report this Post10-10-2013 09:27 AM Click Here to See the Profile for olejoedadClick Here to Email olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
Use PURPLE to feed heater core, you will need to tap the hole for the pipe thread for the nipple. Return the heater core to the passenger side coolant tube, like the stock routing.
RED should be tapped and plugged.
ORANGE area can be used for low mount alternator bracket attachment point using the mounting holes for the power steering pump.
PINK is attached to the passenger coolant tube, it is the inlet (feed) to the water pump from the radiator.
A modified Fiero thermostat housing is not needed.
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mitchjl22
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Report this Post10-10-2013 12:15 PM Click Here to See the Profile for mitchjl22Click Here to Email mitchjl22Send a Private Message to mitchjl22Edit/Delete MessageReply w/QuoteDirect Link to This Post
What is the small hose that connects to the Fiero thermostat housing. What does it do? Is that the Fiero Heater core return?
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olejoedad
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Report this Post10-10-2013 12:44 PM Click Here to See the Profile for olejoedadClick Here to Email olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by mitchjl22:

What is the small hose that connects to the Fiero thermostat housing. What does it do? Is that the Fiero Heater core return?


For the 2.8 V-6......
There are four hoses that attach to the thermostat housing......
Large coolant discharge to radiator
medium coolant discharge to heater core
two small hoses for the throttle body coolant lines, one off of the thermostat housing, the other off of the heater core feed line.
The heater core return is either on the passenger side undercar coolant tube (87-88) or the pipe nipple on the waterpump housing (85-86).
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MstangsBware
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Report this Post10-11-2013 12:48 AM Click Here to See the Profile for MstangsBwareClick Here to Email MstangsBwareSend a Private Message to MstangsBwareEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by mitchjl22:

What is the small hose that connects to the Fiero thermostat housing. What does it do? Is that the Fiero Heater core return?


If u use a modded Fiero housing then u use the smaller outlet for ur heater core and plug all the other open holes with metal freeze plugs...
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mitchjl22
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Report this Post10-16-2013 02:36 PM Click Here to See the Profile for mitchjl22Click Here to Email mitchjl22Send a Private Message to mitchjl22Edit/Delete MessageReply w/QuoteDirect Link to This Post
wheres he how to thread on a modified housing? I searched forever and can't find
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FIEROFLYER
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Report this Post10-16-2013 03:11 PM Click Here to See the Profile for FIEROFLYERSend a Private Message to FIEROFLYEREdit/Delete MessageReply w/QuoteDirect Link to This Post
I would just use the stock 3800 99 and newer alt bracket that has the heater hoses going through it and then you have a nice strong platform for the dog bone and a tensioner pulley for the belt. Dan
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