MarcNH
Well-Known Member
I have managed to get just about everything fixed on my '87 JD 310c after several months of repair/waiting for parts.
After firing it all up,and fixing a few hydraulic cylinder issues, it easily came to life, and I was ready to put the hood back on.
But v-belt wobble has me a bit worried.
I thought I had these cranked down pretty well, but the section of belt between the water pump/fan and the main drive pulley flops around quite a bit. Not as bad as it was before doing all the work (e.g. that +- $600 main pulley/balancer replacement, ant the complete coupler assemblies, spline, and hydraulic pump). The other pulley points (main pulley-to-alternator, and alternator-to-water pump) which are shorter appear to be just fine.
An older thread mentions the use of a side-by-side dual belt instead of two single belts. Is this a better solution? I bought 2 belts from a dealer for the 310c, but neglected to look for "matching" in the description (yet another error I made).
Replacing these is a real pain. Not sure if I should just crank everything down tighter, and wait for winter; I believe that I am throwing pieces of flex-ring in the Stanadyne pump, causing that ball valve to clog, and will likely send it out for rebuild in a few months. But I just need to get some actual work done now before winter.
My gut tells me to just run it for a couple months, and then put a twin belt (or at least a "spare" twin belt) on there at pump rebuild, when the hood will have to come back off anyways.
After firing it all up,and fixing a few hydraulic cylinder issues, it easily came to life, and I was ready to put the hood back on.
But v-belt wobble has me a bit worried.
I thought I had these cranked down pretty well, but the section of belt between the water pump/fan and the main drive pulley flops around quite a bit. Not as bad as it was before doing all the work (e.g. that +- $600 main pulley/balancer replacement, ant the complete coupler assemblies, spline, and hydraulic pump). The other pulley points (main pulley-to-alternator, and alternator-to-water pump) which are shorter appear to be just fine.
An older thread mentions the use of a side-by-side dual belt instead of two single belts. Is this a better solution? I bought 2 belts from a dealer for the 310c, but neglected to look for "matching" in the description (yet another error I made).
Replacing these is a real pain. Not sure if I should just crank everything down tighter, and wait for winter; I believe that I am throwing pieces of flex-ring in the Stanadyne pump, causing that ball valve to clog, and will likely send it out for rebuild in a few months. But I just need to get some actual work done now before winter.
My gut tells me to just run it for a couple months, and then put a twin belt (or at least a "spare" twin belt) on there at pump rebuild, when the hood will have to come back off anyways.