RB25DET Neo heater hoses

[CRSKmD]

Not sure if correct place admin please move if needed.

Half way through a RB25DET neo into R32 swap and needing to replace the heater and other hoses.

from what i can gather the RB25DET Neo heater hoses are what i need but please correct me if i am wrong.

apart from OEM what options are out there. i have found Misc eBay ones mainly listing RB26 or R33 25
and JJR do not list a Neo kit.

[GTSBoy]

I don't remember the details, but I just cut the R32 ones and used size-changing joiners to connect them to the appropriate points on the back end of the inlet manifold/water log stuff.  The R32/RB20 stuff is different sized to the R34/Neo hoses, so you can't just get Neo hoses and use them (and they go to the wrong spot on the firewall anyway, I think).

[Jordy32]

This is the list of numbers I used for replacing all of the rubber hoses in my engine bay, I added some metal pipes in there too, you can ignore those.



I used this website/diagram to get part codes/numbers

http://www.jp-carparts.com/nissan/partlist.php?maker=nissan&type=81&cartype=12&fig=211

Hope this helps!

[CRSKmD]

@Jordy32 Legend thanks

[CRSKmD]

can anyone confirm about the back fo block to heater core hoses bieng different size/shape

[GTSBoy]

You can come look at mine if you want.

[CRSKmD]

Just now, GTSBoy said:

You can come look at mine if you want.

where do you live?

 

[GTSBoy]

Northern suburbs.  Car is close to the city during the day.

[NEO25T]

My inlet side is off as well as all the hoses eccept for the heater. If you need pics or measurements of anything let me know and ill do my best to help.

thats the best pic of heater hoses on my phone

Edited February 8, 2018 by NEO25T
Add photo

[Jordy32]

I've got the 2 passenger side hoses brand new in bag ready to be installed, but they're with my car not with me. I can get pics/measurements for you too

[Dose Pipe Sutututu]

Useless information to add (might be useful to someone)

R34 RB25DET NEO motor heater core hoses fit on a R33 heater core, as in they're the same size & roughly same location.

[GTSBoy]

First image is original R32 heater hoses coming out of firewall and going behind head.  Note that the RB25DET Neo steel heater pipes have been removed from the back of the head.  (Ignore the small hose mixed up with it - it's my current attempt to stop smurf jizz spoogin all over my parking spots.

Second image is same R32 heater hoses seen from other side of head.  Retains the original R32 bleeder point (just under the brake pipe you can see on lower edge of photo).  If you look down next to the clutch master, where the brake pipe bends under it, you can see the hose clamps that show where I have the size reducing joiners.  I cut the R32 hoses here, put the joiners in and also cut back the RB25 hoses coming off the head/water log/block (wherever they each came from).

The last photo shows same thing from forward of the clutch master.  The bit of heater hose with the dried green smurf spoof is the RB25 heater hose and you can see its hose clamp onto the engine side connection behind that bit of loom.

 

[CRSKmD]

awesome help.

 

@NEO25T are they factory neo heater lines straight onto an R32 shell? if so were the ID/OD matching

[NEO25T]

Sorry mate they are standard neo heater hoses but in a r34.

If you want i can measure them up in the morning, i was going to today but machine shop called and distracted me saying my block was stuffed and to find another one lol

[NEO25T]

Ok on the 34 the heater outlet through firewall and hard pipes that run behind head are 19mm od and hoses are 19mm id +-

[GeeDog]

Did you get this sorted? I've found the body side heater hoses off my R33, and I'm in Adelaide. They are 19mm / 3/4" ID, and appear to be in good condition. Removed cause track car.

[CRSKmD]

14 minutes ago, GeeDog said:

Did you get this sorted? I've found the body side heater hoses off my R33, and I'm in Adelaide. They are 19mm / 3/4" ID, and appear to be in good condition. Removed cause track car.

I went away so this is still a future me problem. 

[CRSKmD]

@Jordy32 where did you get the hose from for the prices shown in the screen shot?

[Jordy32]

Hey mate, replied to your PM.

For those watching at home, I got them from Amayama and they got shipped from the Japan warehouse.

Thanks,