[gdill2]

Re: Heating Issue (volvo77)

Welcome to Swedespeed, Walt.

Before you did all this work on the '77 did the temp gauge act the way it does now? When you first start the car cold where is the temp gauge needle? When you changed the heater core did you remove the instrument cluster? How old is the water pump? Radiator?

Engine buzzing at 65mph - because of no OD?

George Dill

 

[gdill2]

Re: (volvo77)

If nothing is leaking coolant and the level of the expansion tank remains uniform at both hot and cold (nearly empty when cold, nearly full when hot) then the cooling system should be OK.

What brand and temp rating was on the old and new thermostats?

http://www.cleanflametrap.com/#links

George Dill

Modified by gdill2 at 11:46 AM 5-23-2009

 

[gdill2]

Re: (volvo77)

If you replace the water pump and/or radiator source a 160F thermostat locally and install same unless you plan to take the car outside Salem to a much colder area.

If you make more than one change to the car (all three above) at one time and the temp gauge runs coooler and steady you won't be sure which fix fixed but it will be fixed.

George Dill