1999 Jimny Heater Core Hose

Hi everyone,

Just about to flush my heater core as one pipe is significantly colder than the other leading me to believe it is blocked to some extent however I've been wiggling the inlet hose to see if they were stuck and it started to disintegrate and now leaks a little. I would like to replace both of them if possible.

Would anyone happen to know the inner diameter of the hose I would need (pictured)? Edit: or know a suitable replacement?

 

Surely the ID of the rubber hose is the same as the OD of the steel pipe it's connected to?...

Yes, fair point. Just wanted to ask in case there was some hidden wisdom out there... 

Whats been said ^^^^.
​​​​Measure the OD of the metal pipe and get a rubber hose with a ID no larger, ideally slightly smaller, than the metal pipe OD. 
​​​​​​Only other option is new OEM pipe I suspect.
MIke

Thank you Scimike that's useful to know! 

I will add a little to what Lambert said. The pipe shows serious corrosion and removing the hose will likely destroy it. At this age the hose is likely to be rubber welded to the pipe and difficult to remove so you will end up needing a new pipe and hose. In the past I have made new pipes using copper tube.

Roger

The operation was a success... the heater on the Jimny is bloody hot! I've never known it to be so warm and so quick! Well worth it if anyone else who is reading this has the issue that their heater is simply not warm enough. 

Thank you all for your advice.