Hi all,
I have been communicating with Marti Auto Works on their short upper radiator hose with staples for 289. Turns out their supplier is making most of the upper radiator hoses on the short end of the tolerance, but a few are getting through on the long end. Laying a string along the hose, nominal would appear to be very near 13 inches. Doing the same approach, the short hose is 12.5 inches and the long is 13.5 inches. See image below. It appears the tolerance on the drawing is +/- .50 inches. I am betting the supplier is saving a little money, by reducing material cost and cutting to the short end of the tolerance. Marti should tighten up the drawing requirements or have them all cut long. If you order a new hose from Marti, put in a note on your order that you want them to cherry pick a long hose. Hope this helps.
Best of luck
Cory
I have been communicating with Marti Auto Works on their short upper radiator hose with staples for 289. Turns out their supplier is making most of the upper radiator hoses on the short end of the tolerance, but a few are getting through on the long end. Laying a string along the hose, nominal would appear to be very near 13 inches. Doing the same approach, the short hose is 12.5 inches and the long is 13.5 inches. See image below. It appears the tolerance on the drawing is +/- .50 inches. I am betting the supplier is saving a little money, by reducing material cost and cutting to the short end of the tolerance. Marti should tighten up the drawing requirements or have them all cut long. If you order a new hose from Marti, put in a note on your order that you want them to cherry pick a long hose. Hope this helps.
Best of luck
Cory