what damage was incurred when the belt broke if any. why are you changing the cams? if the damage has been rectified and you just want to change the cams find the timing marks on the relevant locations (ie) crankshaft and engine timing mark then the cams should only fit one way as there should be a locating dowl in the cams with timing marks on toothed cog
No heat or low heat in a water cooled engine is worthy of an immediate check as major damage to engine could be the result of continuing to drive it. Things to check:
These two things may cause no heat and possible not ever show as a problem on the temp gauge or temp warning light until far to late:
Low coolant/antifreeze level
Frozen coolant/antifreeze
Stuck thermostat
Other possibilities that may/may not show other signs of trouble as well:
Failing water pump (this would also explain some noise, typically like a grinding, scraping or bad bearing noise)
Slipping belt (Typically associated with the famous belt squealing or chirping noise)
Clogged radiator and/or heater core
Non-operating temperature control valve
Stuck thermostat
Hope this helps!
the thermostst is normally situated at the engine end of the top hose in a housing. To check wait until the engine is cold Thermostat will be shut remove the top radiator hose at the radiator and start the engine If water gushes out there is no thermostat. Best to get a friend to start the car as it will pump out quickly
