BlackT5 Posted February 3, 2011 Report Share Posted February 3, 2011 What's the purpose of the coolant pipe to the tstat, can it not be deleted? Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted February 3, 2011 Author Report Share Posted February 3, 2011 What's the purpose of the coolant pipe to the tstat, can it not be deleted? I'm assuming it's a bleed/air vent line - since the head coolant passages & gasket are different, I'm going to keep it rather than block it off. I used a modified turbo oil pressure feed line, the banjo on the turbo end is the same as the head port - 12mm. Quote Link to comment Share on other sites More sharing options...
Volvo5.0 Posted February 3, 2011 Report Share Posted February 3, 2011 Looking good. I guess I'm lucky I had the whole car that my engine came from so mine didn't require any modifications. Looks like you got it worked out though. What's the purpose of the coolant pipe to the tstat, can it not be deleted? Since that coolant pipe runs together with the breather pipe, and it's all insulated, I'm thinking maybe it helps to keep condensation from forming in the breather pipe. Kind of like the idea of the heater in the ptc. Quote Link to comment Share on other sites More sharing options...
NEU Posted February 3, 2011 Report Share Posted February 3, 2011 What's the purpose of the coolant pipe to the tstat, can it not be deleted? Since that coolant pipe runs together with the breather pipe, and it's all insulated, I'm thinking maybe it helps to keep condensation from forming in the breather pipe. Kind of like the idea of the heater in the ptc. I'm not 100% on this but I think it's for heating up the intake in cold weather. I had something similar to this on my '71 Mercedes that would run coolant thru the throttle all the time. Great if you live in Germany and have cold weather and worry about icing up the throttle. Bad if you live in hot and humid DC. I disconnected it and never had any issues. On my RN motor when I did my alternator and had the intake off I noticed that it had something similar running from the T-stat housing to the intake manifold and back. I just looped a hose from the T-stat to the T-stat . I've been running this way for 2+ years and no issues... Again maybe more necessary in colder climates but not for me.... Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted February 4, 2011 Author Report Share Posted February 4, 2011 Since that coolant pipe runs together with the breather pipe, and it's all insulated, I'm thinking maybe it helps to keep condensation from forming in the breather pipe. Kind of like the idea of the heater in the ptc. That's my supposition. I may wrap that pipe with the copper breather pipe to keep it cosy in the inclement weather :D Quote Link to comment Share on other sites More sharing options...
wizzard_al Posted February 4, 2011 Report Share Posted February 4, 2011 That's my supposition. I may wrap that pipe with the copper breather pipe to keep it cosy in the inclement weather The pipe is designed to run water from the thermostat to the back of the head, and it is designed to run parallel to the breather line from the PVC system to the PTC on the intake pipe. This breather line takes fumes from the crankcase and runs them into the intake before the turbo. The purpose of the water line is to keep the fumes warm, so that in the winter, water in the fumes doesn't condense and freeze in the line, or at the PTC. That would cause massive overpressure in the block, and blow out seals. The PTC itself is connected to the electrical system, and is designed to maintain a temperature of 80 degrees C. Leave it to the Swedes to know how to deal with freezing water in the system in the winter. Later model cars had the breather line also connect to the bottom of the intake manifold with a banjo bolt. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted February 5, 2011 Author Report Share Posted February 5, 2011 worked on the ports modified t/stat neck (it's actually welded, I just put a layer of JB since the metal is so thin & may be porous. Hopefully I can use Volvo 3514629 740 radiator hose (used one in these pics) with the new orientation of the neck. just need to finish cleaning it up & paint started cleaning up the ME7 NA intake as well Quote Link to comment Share on other sites More sharing options...
Volvo5.0 Posted February 5, 2011 Report Share Posted February 5, 2011 started cleaning up the ME7 NA intake as well I'm having a flashback!! My hands are still aching from polishing my manifold :( Quote Link to comment Share on other sites More sharing options...
gilber33 Posted February 5, 2011 Report Share Posted February 5, 2011 OH. MY. GOD. This is some amazing work. :tup: Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted February 8, 2011 Author Report Share Posted February 8, 2011 OH. MY. GOD. This is some amazing work. Thanks! Finishing up the intake... Figured out what length dual ribbed belt was needed for my hybrid setup: 6DPK1824 (Gates DK060718) put sleeves in the injector ports on the ME7NA manifold as well... Quote Link to comment Share on other sites More sharing options...
dublin14 Posted February 8, 2011 Report Share Posted February 8, 2011 Looks great! Lookin forward to seeing this all together and on a dyno. Quote Link to comment Share on other sites More sharing options...
andyb5 Posted February 8, 2011 Report Share Posted February 8, 2011 Really excited to see the finished product Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted February 9, 2011 Author Report Share Posted February 9, 2011 tapped cams & plugged the VVT hub oil feeds with m6x1 allen screws VVT delete hubs my 2.5" IC plumbing will fit nicely over the new manifold coolant pipe from head to t/start housing Quote Link to comment Share on other sites More sharing options...
maciekb2002 Posted February 9, 2011 Report Share Posted February 9, 2011 (edited) great . Those delete hubs you got.Did you get them on VS, or neighborhood lathe work ? And what you going to do with ignition? Cap and cam sensor custom mounting on s60 head? Edited February 9, 2011 by maciekb2002 Quote Link to comment Share on other sites More sharing options...
magicaljake Posted February 9, 2011 Report Share Posted February 9, 2011 looking good Hussein Quote Link to comment Share on other sites More sharing options...
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