Jinma FYI

[RonMar]

Thank you all for the quick replies.

The filter i mentioned is a cartridge type filter. It looked identical as far as filter media. The filter element is the same size as the original. I didn't know about the difference in filtering between oil and hydraulic filters.

This spin-on cartridge you are refering to, is it down by the gas pedal in the hardline between the resovoir and the pump? If so, that is a real bad place to put a "filter" Filters are meant to have oil pushed thru them, and as such, have a lower micron rating. In the case of a hydraulic return filter, around 10 micron or so. when they clog, the bypass will allow flow thru the cartridge, but they have a rather high bypass pressure of around 15PSI or so. Filters are not meant to have oil sucked thru them, and restricting the flow feeding a hydraulic pump is a bad idea. It can and will cause cavitation which can destroy the pump. IF it is cold, and the oil is thick, the pump will have trouble pulling enough suction to trip a bypass in the teens for PSI. A suction side cartridge should have a very low bypass pressure. Hydraulic pumps are meant to make pressure, and need as little restriction as possible on their inlet. At the most, a hydraulic system should have a screen strainer on the input. These are typically #100 mesh, which if I recall correctly works out to around 140 micron... You can get spin-on wire mesh strainers...

Search this forum, this has been discussed at length, and there should be some appropriate part numbers for domestic hydraulic strainer cartridges...

 

[chris0152]

RonMar,
I never used the term spin on......
I said cartridge........

 

[chris0152]

OK, sorry it wasn't this morning, but the TSC part number is 2301088

 

[chris0152]

let me know if these come through

 

[greg_g]

RonMar,
I never used the term spin on......
I said cartridge........

Let me help you with the terminology here. A spin-on is has a round metal casing that threads onto a housing. Filtration material/bypass valve inside, and the whole thing gets thrown away at fluid change time.

A cartridge is just the filtration material that goes inside a permanent housing. The control valves are part of the housing. Only the cartridge gets tossed at fluid change time.

Don't know about yours, but the older Jinmas came with a suction screen right inside the hydraulic sump.

//greg//

 

[robert421960]

that key switch look exactly like the ford cold start i bought at my local auto parts store but i was thinking it was less than 10 bucks

 

[greg_g]

that key switch look exactly like the ford cold start i bought at my local auto parts store but i was thinking it was less than 10 bucks

Yup. That's a Chinese aftermarket copy of the Ford/Lucas switch. They typically run in the $10-$13 range. Significantly inferior to an actual Ford or Lucas switch, but much more available - and a helluva lot cheaper. Real Ford and Lucas switches are in the $65-$70 price range (new), but likely live longer than most Jinmas. That said, and despite the low price, the farm/auto store and eBay Chinese clones will still outlast the OE Jinma keyswitch.

//greg//