Bottom radiator hose - PAS cars

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Llessur
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Bottom radiator hose - PAS cars

#1 Post by Llessur » Wed Jan 30, 2019 1:36 am

The 2500s with power steering (like mine) use a different bottom radiator hose arrangement than the cars with manual steering – instead of a single hose there are two shorter hoses which are connected by a metal pipe. This arrangement prevents the hose from chafing on the water pump pulley.

Does anyone know if there is anything special about the two short hose lengths for the PAS cars (GRH554 and GRH555) or can I cut down the new non-PAS bottom hose I already have?

I can’t see why this wouldn’t work and I’ll give it a go anyway but thought I worth checking here to stop me ruining a perfectly good hose if it won’t work.
Adelaide, South Australia (ex-Brighton, UK)
1977 2500S - White
1975 2500 - Murky silver parts car

My blog: https://triumph2500blog.wordpress.com/

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valencia
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Re: Bottom radiator hose - PAS cars

#2 Post by valencia » Wed Jan 30, 2019 3:06 pm

Well it certainly looks feasible from the diagrams in the parts list although I have to say that I have never tried it myself, my car is power steering anyway and I always had the proper hose to hand, get the knife/saw out and give it a go if the non pas hose is of no use to you.
Mike.

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Re: Bottom radiator hose - PAS cars

#3 Post by tony » Wed Jan 30, 2019 5:47 pm

It does work. Done it a couple of years ago.
Tony.
1976 2500 TC.

Lots of bits

1999 BMW Z3.
2003 BMW 525i Touring.
Hopefully not needing too many bits.




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Hopefully don't need bits !

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Re: Bottom radiator hose - PAS cars

#4 Post by sprint95m » Thu Jan 31, 2019 3:57 pm

Yes cut the non-PAS hose to suit and, if it was me, I would fit a stainless steel pipe
https://www.chriswitor.com/proddetail.php?prod=153509SS



Ian.
Owner of a 1979 Dolomite Sprint (EFI),
previously ran for nine years a Dolomite (1850), a 2500S (for 4 years), a Dolomite 1500HL (for a few months),
a Dolomite Sprint (for 10 years) and a second 2500S (for 5 years until 2007).

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Re: Bottom radiator hose - PAS cars

#5 Post by johnnydog » Thu Jan 31, 2019 6:02 pm

The top PAS hose is the 45 degree (approx) angle, and the bottom PAS hose is a 90 degree angle but one side of the 90 angle is longer than the other. The longer side goes to the radiator. As Tony says, they can be cut from a non PAS hose.
The old hoses should be sufficient for templates when making the cuts.
Preferably, the 'new' hoses should be the reinforced type which helps prevents any swelling when hot and under pressure.
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1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

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Re: Bottom radiator hose - PAS cars

#6 Post by Llessur » Sun Feb 03, 2019 11:15 pm

Cheers all - the hose has been sliced and spliced and fits a treat.

A little bit fiddly to fit but I got there in the end. Sadly I'll have to do this all over again when my stainless pipe is delivered from the UK...
Adelaide, South Australia (ex-Brighton, UK)
1977 2500S - White
1975 2500 - Murky silver parts car

My blog: https://triumph2500blog.wordpress.com/

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Re: Bottom radiator hose - PAS cars

#7 Post by bigestate » Tue Feb 12, 2019 10:14 am

If you position the hose on a certain angle and trim a slight piece to shorten it like I have done you can get away with using a standard non power steering bottom hose. Mines been on for 7 years and over 25,000 miles without issues 8)

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