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| | | | Joined: Apr 2009 Posts: 181 'Bolter | | 'Bolter Joined: Apr 2009 Posts: 181 | Hello - I just purchased the 3 necessary hyd. brake hoses for the 58 Spartan 2.5 Ton I'm fixing up - the original hoses were (all 3) Wagner F4000 (from vintage catalog I have). The ones I picked up are Dorman H4000, which are supposed to cross. The originals have at least a 3/16 ID, while the Dormans have 1/8 ID....otherwise, the Dormans are correct (length/fittings, etc.). Will this difference affect performance? Thanks for any feedback that you may have....
1955 GMC 630, 1959 GMC W660, 1958 Chevy Spartan 80
| | | | | Joined: Aug 2009 Posts: 184 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2009 Posts: 184 | If this is a measured ID from the original hose there could possibly have been some expansion over the years...never heard of this but possible I suppose.
I would not think this would affect performance at all. The only effect this could possibly have would be to slow the application of the brakes slightly by reducing how quickly the brake fluid can move through the hose. In a laboratory setting one may be able to measure a difference in the flow rate of the different hoses but in a real life application I can't see it would matter.
1946 Chevy OS 1.5ton, 1955 GMC 3100, along with other various IH,Ford,Nash,MGB,.....
| | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | Pressure is pressure when you're dealing with hydraulics. It won't make any difference.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | If the brakes were out of adjustment the reduced flow may be noticeable.
But I think like OldSub says it'll be OK.
Although I'd look and ask a little more and try to find ones more like original before giving up and using the smaller diameter ones.
Grigg | | | | | Joined: Apr 2009 Posts: 181 'Bolter | | 'Bolter Joined: Apr 2009 Posts: 181 | Thanks, gentlemen, for getting back to me with your comments and thoughts...definitely good input....
1955 GMC 630, 1959 GMC W660, 1958 Chevy Spartan 80
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