It's a great job that you're doing and it will be a service to everyone. Give yourself a pat on th back. My only gripe is, why didn't you do it earlier? - it could have saved me five or six hundred bucks!
I've still got most of the new hoses sitting in a box in the shed - except those already fitted to the new motor which is sitting on the engine stand. As soon as I get a chance I'll provide I.D. measurements for you, and check them against the O.D. of the fittings they attach to.
I couldn't see a reference number or description allocated to N 901 976 01, RHS cyl head < > perimeter plastic pipe.
I have only found substitutes for the above hose, plus #26 & #65. I'll send you the details.
Would it be helpful if I measured the overall length of each hose?
I think I mentioned on a previous post that Gates make a range of rubber sleeves designed to slip inside the end of a hose to make it fit a smaller diameter pipe. This would be usueful for adapting a universal hose fit applications that require different sized ends, such as #2, #3, #15, #16, #17A & #38. With these, it would be practical to carry lengths of universal hose to cover multiple repairs. Straight lengths of hose are much easier to store in an expedition vehicle, and take up less space.
I looked at the Gates website but couldn't find the dimensions. I'll check it out at the radiator shop. I'll be down there again soon to order the stainless steel pipe.
By the way, I'm tempted to open a whole new can of worms by throwing silicone hoses into the ring for discussion. So far my preliminary research is that there is silicone, and silicone - some of the cheaper hoses are not up to scratch.
The same could be said for rubber hoses. I would think twice about using anything less than the best quality branded hose, especially in high-temp situations.
Has anyone got feedback on the merits of factory spring-loaded hose clamps versus screw clamps? I had a good quality screw clamp fail recently. Maybe I did it up too tight. I've taken to doubling them up where there is room. Paranoid.
What about using a lubricant such as vaseline when fitting tight rubber hoses, as I have seen some people do? Factory-fitted hoses on some vehicles appear to be glued on with an adhesive that probably acts as a lubricant during assembly. Any thoughts?
I haven't been able to get near the Syncro project lately as I'm trying to get my head around the Lucas fuel injection system in the old Range Rover, which now has long grass growing around it.
Meanwhile the old kombi keeps on going, although I have to give it a good thrashing in second gear every time the tappets start rattling.
Cheers, Roger {Beetle] Bayley