8N_John
Silver Member
I am going to replace my oil pressure gauge (showing continuous maxed out reading) and tachometer (unreadable) on my 8N. How does one go about replacing these? Any advice is appreciated.
Oil Pressure Gauge and Tachometer
- Thread starter 8N_John
- Start date
normde2001
Elite Member
- Joined
- Mar 10, 2002
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- 4,143
Is the tachometer what the 8n parts lists refer to as a "proofmeter"?
Soundguy
Old Timer
- Joined
- Mar 11, 2002
- Messages
- 52,238
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- Central florida
- Tractor
- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
Oil pressure gauge is an easy 9.99$ replacement from an auto store. I have sunpro 'cheapy' gauges on 3 of my old fords. Drops in.. all sae.
Proofmeter is as stated.. about 60 bucks. Drops in and screw the drive cable in. Try lineing it up to make sure it doesn't bind when you put the drive cable in.
Soundguy
Proofmeter is as stated.. about 60 bucks. Drops in and screw the drive cable in. Try lineing it up to make sure it doesn't bind when you put the drive cable in.
Soundguy
Soundguy
Old Timer
- Joined
- Mar 11, 2002
- Messages
- 52,238
- Location
- Central florida
- Tractor
- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
Oil gauge could be bad.. or someone has dinked with the oil relief valve.. as it shouldn't develop 50 psi.
Replace the gauge first. If it still reads high.. I'd bet someone has stretched the spring under the large headed cap on the front of the engine.. left side front... under it is a spring and plunger that is the oil relief valve. If the oil pressure is a tad low.. some people stretch the spring.
New springs are available.
The proofmeter is the tach.. it is helpfull if you need to know specific rpm or groundspeed.. also is an hourmenter. N's didn't get them till around 50 or so.. so from 39 till them they went without... your call.. I like mine..
Soundguy
Replace the gauge first. If it still reads high.. I'd bet someone has stretched the spring under the large headed cap on the front of the engine.. left side front... under it is a spring and plunger that is the oil relief valve. If the oil pressure is a tad low.. some people stretch the spring.
New springs are available.
The proofmeter is the tach.. it is helpfull if you need to know specific rpm or groundspeed.. also is an hourmenter. N's didn't get them till around 50 or so.. so from 39 till them they went without... your call.. I like mine..
Soundguy