dlogvine
Master Chief Petty Officer
- Joined
- May 4, 2015
- Messages
- 839
I changed the tachometer gauge on a 1984 boat with OMC 3.8L v.6 engine. Had to exchange it once since the first tachometer that I've got through eBay was dead. The other one, medallion B-3150 is working but looks like it shows up RPMs way too high. I can even hear it by the ear, when it is about 3000-3500 rpm it shows 5000-5300. The setting is on 2 which corresponds to v.6 The question is, since the tachometer has calibration nob, how can I calibrate it to show approximately right RPMs?
The other question is about the fuel gauge. I had to change the float in the tank, the old one was all soaked and was sinking into the fuel. The cover of the float was all warped, then the previous owner tried to seal it with some sealant which was all eaten by gas. So when I hooked up a fuel gauge to the sender it started showing up a full tank and keeps showing it after an hour of boat running. Any ideas about what could be wrong?
Thx
The other question is about the fuel gauge. I had to change the float in the tank, the old one was all soaked and was sinking into the fuel. The cover of the float was all warped, then the previous owner tried to seal it with some sealant which was all eaten by gas. So when I hooked up a fuel gauge to the sender it started showing up a full tank and keeps showing it after an hour of boat running. Any ideas about what could be wrong?
Thx