My heater core broke and is leaking coolant into my passenger side interior. I don't feel like removing my entire interior to fix it... Besides, the heat system sucks and I don't really need it in Florida anyways.



So, what I wanted to do was just connect the two in/out coolant lines together that feed to the heater core. I just wanted to reassure myself that I'm taking the correct action by asking you all if I've got the right idea.



The two small rubber hoses that connect into the firewall just above the rear turbo are the ones I should be concentrating on, correct? I was also curious as to what your recommendation is on the connecting piece I should use to do this. I'm pretty sure I've got the right idea on what to get, but if someone else has done this before and it worked fine, I'd rather go with a tried and true method.



Any help would be much appreciated. Thanks!



-Anthony

just connect the two lines...bypass the core.

the feed line for the heater is on the driver side of the engine, right below the elbow... block it off if you want

Does anyone have a coolant system diagram I can look at? DUB says connect the two lines I'm talking about and Martin says there's another one. lol...

just pull the 2 lines off the firewall, get a piece of copper pipe from home depot or lowes and connect the 2 together. Simple, easy, done https://www.nopistons.com/forums/pub...IR#>/smile.png

Was that the source of the leak?

Get rid of the whole heater system and whatever piping you don't need - you might be surprised at the weight you save.



Mark

Nah I don't think that was the leak... The leak is most likely a freeze plug gone bad but now I'm not sure because the car isn't leaking anymore... Yea I'm gonna run to home depot before it gets to late and connect these hoses together so I can finally have a dry passenger side.

the core and blower to include piping to the housing dont weigh very much....

the entire system weighs around ten lbs... give or take a few

so the surprise is that the weight savings is minimal...

Where's the car right now?

if you decide to keep the heater.. i have 2 cores in storage. Let me know... If you ditch it.. the best thing to do is remove the piping and cap the nipples at the Waterpump housing (bottom of passenger side) and the nipple on the rear housing (bottom of drivers side). this not only eliminates a small amount of weight.. if eliminates a few possible leak points.

I dunno. The reason I said it is because the smallest heater I can fit to my car is one out of a mini, and one of those is quite big including all the switchgear etc. And with the extra water I'd imagine there'd be a good bit of weight overall.



Mark

So it doesnt hurt the motor to block off that line. https://www.nopistons.com/forums/pub...1047683561.gif because i have mine looped back into each other but i would rather remove it all together so i can get some more clearance around my single setup. anyways i thought it was for cooling in the motor also but if thats not true. then i know what i am doing tomorrow https://www.nopistons.com/forums/pub...IR#>/boink.gif

if youve already looped that line..

not much more left to do outside of line deletion up to the rear housing port...

asssumption is that youve already removed the related blower.. core and ducting...

doesnt make sense to loop it if you havent done a complete removal..

runnin the heater on high provides very little change in coolant temp...

wont hurt the motor... your actually removing failure points on the coolant system as grey have already stated..

keep in mind that youve also removed your ability to use the heater to clear your windshield..

most id gather who have done this mod have already removed the ac as well ... so that option is out...

imho...unless this is a track specific car dont bother..

pics..

amp yep a/c heater is long gone. didnt work when i bought the car. i spent in my opinion a ton of money fixing it for minimal results so i decided to scrap it all together. but i thought the line was for additional cooling to the engine block. but since it seems thats not the case i will be more than happy to remove it from the car. living in florida and with garage parking my car doesnt leave me with a frosty windshield to often. and i am leaving the blower motor in for now so i can "try" to make some ducting to attach it to the vents so i can still blow some air if i need to. it should be a fun little project.

dash removal for when you start the ducting design...

and use fogx for times when drivin in the rain...

Yeah man how are you going to defrost?

lol i just dont care about defrosting. since i live in a climate thats 70f+ year round. plus it hasnt worked in two years so thats two years i have gone without the ability to defrost my windshield or cool myself in traffic. i want to keep the blower for rain driving though as it would tend to fog. but i still drive with my windows cracked to help that. anyways to each there own right fellas

heres a pic of the plug on my housing....