Frank L. Di Gioia
True Classic
I Bolted a head from a 903/965cc A112 on my 903 engine. I can't remember the correct way to run the temp gauge and thermostat bypass water lines. I'm using an after market gauge with a 1/8" NPT connection. The A112 temp gauge is a tapered thread NOT NPT and it's ohm impedance will not work with my gauge nor can the banjo be fitted. I've never really understood the function of the water bypass banjo. POSSIBLY the temp sensor read a lower temperature if the water level dropped below the sensor tip. The bypass would insure there was actual fluid going to it. ?
My solution is to:
1) drill out A112 temp gauge and fit 1/8" NPT sensor to top of block.
2) route water bypass directly from thermostat base to water pump with a restrictor.
3) plug outlet formerly for heater at front of block. Again it's NOT a NPT sitting but is tapered.
Any suggestions would be appreciated.
My solution is to:
1) drill out A112 temp gauge and fit 1/8" NPT sensor to top of block.
2) route water bypass directly from thermostat base to water pump with a restrictor.
3) plug outlet formerly for heater at front of block. Again it's NOT a NPT sitting but is tapered.
Any suggestions would be appreciated.