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Why Does This Hose Keep Blowing Off? *pic*

hazerb30

By hazerb30,
in Engines & Forced Induction

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hazerb30 Collaborator

hazerb30

Posted
Posted (edited)

Found this little hose had come off. Fixed the high idle problem ive been having :thumbsup: See attached pic

But today it came off again. Its obviously a vacuum hose going to the fuel pressure reg but i didnt realise just how important it is until i did some reading on here.

This from sydneykid was most enlightening.. and scary

Sydneykid on FPR hose/boost guage install

There is no clamps on this little hose and no evidence there ever were so it makes me think nissan never expected it to come off. Its coming off when the car is on boost.

Anyone know why? i dont want to just clamp the thing on id rather understand whats happening because it could be pointing to something more serious?

Car is R32 gtr, 1989, 1.0 bar boost, stock computer, aftermarket turbos recently installed which were rebuilt and highflowed r33's.

post-7752-1247141975_thumb.jpg

Edited by hazerb30
Duncan Grand Master

Duncan

Posted
Posted

most likely there is a small split in one end of the hose, so replace it. Mine is on and off regularly (with every motor) so I cable tie it each time. Never had a problem since (and despite Gary's disagreement I run my boost controller from there)

James_03 Mentor

James_03

Posted
Posted

I replaced myn a while ago with some good turbosmart vac line then cable tied it. Just make sure the replacement hose is the same ID.

I would recommend silicone hose for replacement over rubber too. I also never T anything off the reg line as gary mentions.

Brezza Proficient

Brezza

Posted
Posted

i had the same problem,

replaced the hose as its cheap as, mine had dried up and was a stretched from being on the car for 20 years.

FYI mine is a '89 R32 GTR too.

replaced the hose, cable tied it and it hasnt popped off since.

easy fix!

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