DMNDSTAR87 Posted December 13, 2013 Report Share Posted December 13, 2013 I have seen two different angles on these----The one I have now angles at about 4 oclock(looking down at it) but I had one a while back that is pointed more towards 5 oclock---That is the one I need as it leaves more room to run my pipes down the drivers side versus the OVCP---anyone know what year that was used on----thxgig out Link to comment Share on other sites More sharing options...
carguygibby Posted December 13, 2013 Report Share Posted December 13, 2013 (edited) 88-89 ones are different, I think that's the one you want.I replaced my earlier 86 with one.Colin Edited December 13, 2013 by carguygibby Link to comment Share on other sites More sharing options...
ucw458 Posted December 13, 2013 Report Share Posted December 13, 2013 88-89 are different. More angle and longer than the 83-87 ones. Link to comment Share on other sites More sharing options...
importwarrior Posted December 13, 2013 Report Share Posted December 13, 2013 (edited) http://i35.photobucket.com/albums/d182/Professor-Quest123/cooling/WP-12.jpg http://i35.photobucket.com/albums/d182/Professor-Quest123/cooling/WP-13.jpg http://i35.photobucket.com/albums/d182/Professor-Quest123/cooling/WP-8.jpg http://i35.photobucket.com/albums/d182/Professor-Quest123/cooling/WP-9.jpg Edited December 13, 2013 by importwarrior Link to comment Share on other sites More sharing options...
importwarrior Posted December 13, 2013 Report Share Posted December 13, 2013 88-89 http://i35.photobucket.com/albums/d182/Professor-Quest123/cooling/WP-2.jpg 83-87 http://i35.photobucket.com/albums/d182/Professor-Quest123/cooling/WP-3.jpg Link to comment Share on other sites More sharing options...
KIDMEN Posted December 13, 2013 Report Share Posted December 13, 2013 Just a question why did they change them. Link to comment Share on other sites More sharing options...
ucw458 Posted December 13, 2013 Report Share Posted December 13, 2013 Just a question why did they change them. That's one of those questions we may never have an answer for. Link to comment Share on other sites More sharing options...
Shelby Posted December 15, 2013 Report Share Posted December 15, 2013 most likely more of a direct suction at the lower rad hose inletwhen the thermostat is closed the only coolant flow to the turbo is what coolant that can be sucked out of the upper rad hose ,, shows the how critical the coolant level is to insure good flow to the turbo Link to comment Share on other sites More sharing options...
DMNDSTAR87 Posted December 15, 2013 Author Report Share Posted December 15, 2013 (edited) http://i35.photobucket.com/albums/d182/Professor-Quest123/cooling/WP-12.jpg http://i35.photobucket.com/albums/d182/Professor-Quest123/cooling/WP-13.jpg Now I'm a little confused....I checked my microfiche and it lists 3 different ones...(83-84) MD061791---(85-4/87) MD084802----(5/87-89)MD127231.In the pics shown here my housing on car now is the same as pic marked 88-89.I have an old pic of my engine bay from 1992 and it has the housing with the more direct angle to the upper radiator port(what I want) I never replaced it till I rebuilt my motor and swapped to another I had kicking around so I assume that the one on my car back in the day was factory.Just to make it more interesting I have only owned 3 of these cars and 2 were 87's and 1 86 so that poses the question " how did I have a Tstat housing from a 88-89 car when I never owned one?just want to be sure of what I need so I don't buy the same part I already have.Thxgig out Edited December 15, 2013 by DMNDSTAR87 Link to comment Share on other sites More sharing options...
importwarrior Posted December 15, 2013 Report Share Posted December 15, 2013 87 built towards the end of production? Link to comment Share on other sites More sharing options...
MikeMeyerhoff Posted December 15, 2013 Report Share Posted December 15, 2013 87 built towards the end of production?Thats probably it. The waterpump change was a mid year switch, so maybe the thermostat housing change happened at the same time? mm there is a third t-stat housing from the 83 and 84s oil-only turbos. Link to comment Share on other sites More sharing options...
Shelby Posted December 15, 2013 Report Share Posted December 15, 2013 and two more the 2.6 and 2.0 carbed engines had a couple diff ones also Link to comment Share on other sites More sharing options...
DMNDSTAR87 Posted December 15, 2013 Author Report Share Posted December 15, 2013 88-89 http://i35.photobucket.com/albums/d182/Professor-Quest123/cooling/WP-2.jpg 83-87 http://i35.photobucket.com/albums/d182/Professor-Quest123/cooling/WP-3.jpg Now that i look at my waterpump its an 88-89 pump cause it has the extra port but the metal waterline is the 87 and i have that port blocked... Im guessing the 88-89 style is better?Gig out Link to comment Share on other sites More sharing options...
DMNDSTAR87 Posted December 15, 2013 Author Report Share Posted December 15, 2013 87 built towards the end of production? My car is 8/86---hence 87 Link to comment Share on other sites More sharing options...
kev Posted December 17, 2013 Report Share Posted December 17, 2013 The 83/84 models didn't have the water cooled turbo..hence no nipple on the tstat housing. Link to comment Share on other sites More sharing options...
ucw458 Posted December 17, 2013 Report Share Posted December 17, 2013 The 83/84 models didn't have the water cooled turbo..hence no nipple on the tstat housing. You said nipple Link to comment Share on other sites More sharing options...
Paul87Quest Posted August 29, 2015 Report Share Posted August 29, 2015 There was a Mitsubishi Technical Service Bulletin No. STB 87-07-001 regarding this cover. The thermostat cover change began May of 1987. According to the bulletin, the revised thermostat cover improves the cooling systems ability to release vapor that normally occurs after shut off when the engine is hot. They also mention that the hoses that are attached to the cover were revised and are both different shape. The TSB indicates that both hoses should be changed to the later version with the cover. So basically this is an upgrade to likely shorten engine cool down and allows the system to remove vapor pockets that trap heat. Link to comment Share on other sites More sharing options...
DMNDSTAR87 Posted September 7, 2015 Author Report Share Posted September 7, 2015 Holy old thread Batman...Good info though....Gig out Link to comment Share on other sites More sharing options...
importwarrior Posted September 7, 2015 Report Share Posted September 7, 2015 http://www.starquestclub.com/forum/index.php?showtopic=147838 Hyundai TStat option works too. Link to comment Share on other sites More sharing options...
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