bleeding cooling system? Greddy IM

Discuss the RB20, RB25 and RB26 series engines.
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240slidekat
Posts: 532
Joined: Sun Dec 19, 2004 11:29 pm
Car: 240sx, 280z, gsxr1000, m3
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hey how do you guys bleed the coolant system on the rb25 with greddy intake manifold, since it doenst have one of those bleed screws.


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maryjane
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Joined: Tue May 12, 2009 7:50 am

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jack the front of the car up, remove the rad cap and let the coolant system bleed out, then reinstall the rad cap

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240slidekat
Posts: 532
Joined: Sun Dec 19, 2004 11:29 pm
Car: 240sx, 280z, gsxr1000, m3
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how long do i keep it on?

s14_sport
Posts: 1852
Joined: Mon Nov 14, 2005 2:01 pm

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for future coolant bleeding adventures you might want to invest in a coolant breather. They work wonderiffically.


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Shocker
Posts: 2082
Joined: Sun Aug 01, 2004 2:40 pm
Car: 89 240sxHB rb26/30

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Cold engine, jack up front of car (or park on an incline so rad cap is the highest point). Remove rad cap, top off. Start car, (no fans on) let car get up to operating temp. Add coolant as needed. Once it has flushed all its bubbles off and fans have kicked on (temps above 200 F turn fans on), Cap it off. Drive happy, might need to redo this one more time if temps don't cooperate.

cheers

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meet07
Posts: 1189
Joined: Tue May 08, 2007 5:48 am
Car: 89 180sx rb25det
Location: North Carolina
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I read somewhere to jack up,remove the temp sensor on the manifold and fill until fluid comes from that hole. Then plug that hole with the sensor and keep filling with the cap off.

crazyandevil05
Posts: 83
Joined: Sun Jul 01, 2007 1:02 pm
Car: 1995 240sx SE, RB25

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instead of jacking the front up, you could just come park in my driveway, its steeper than hell. i had to get coilovers just so i could adjust the height up enough so i dont scrape as bad. my buddy couldnt back up it in his dodge ram w/o 4wd, he did a lil burnout :D


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