99 TURBO EXHAUST VALVES
Posted: Sun Mar 03, 2013 4:23 am
HELLO CHAPS,
JUST A QUERY FOR A SUNDAY MORNING.....
I HAVE ANOTHER 99T 2DR
AT THE MOMENT WHICH WAS RUNNING ON THREE CYLINDERS....COMPRESSION TEST REVEALED NO.3 WAS ''NO COMPRESSION'',SO I STRIPPED DOWN THE CYLINDER HEAD YESTERDAY,EXPECTING A BURNED OUT EXHAUST VALVE....
YES,INDEED....THE EXHAUST VALVE WAS THE CULPRIT
SO,ON REMOVAL THE PART NUMBER ON THE BURNT VALVE WAS 836440
I DELVED INTO THE DEPTHS OF MY OTHER 1978 3DR TURBO ,WHERE THE ENGINE IS IN BITS IN THE BOOT(AND HAS BEEN FOR TWENTY YEARS!) AND RETRIEVED AN EXHAUST VALVE PART NUMBER 930735.....
BUT,ON COMPARISON.......THE HEAD OF THE VALVE 99T 3DR IS MUCH THICKER?POSSIBLY 2MM...
BOTH HAVE THE SMALL DOT IN THE CENTRE TO INDICATE SODIUM COOLED VALVES......
I THINK POSSIBLY THE EXHAUST VALVE SET HAS BEEN REPLACED AT SOME TIME ON THE 2DR 99T? BUT FROM WHAT ENGINE DOES THE PART NUMBER 836440 COME FROM?
DOES ANYBODY HAVE ACCESS TO VALVE PART NUMBER CATALOGUE?
BIRDIE
JUST A QUERY FOR A SUNDAY MORNING.....
I HAVE ANOTHER 99T 2DR
![Crazy :crazy:](./images/smilies/out.gif)
YES,INDEED....THE EXHAUST VALVE WAS THE CULPRIT
![Yay! :yay:](./images/smilies/clap.gif)
SO,ON REMOVAL THE PART NUMBER ON THE BURNT VALVE WAS 836440
I DELVED INTO THE DEPTHS OF MY OTHER 1978 3DR TURBO ,WHERE THE ENGINE IS IN BITS IN THE BOOT(AND HAS BEEN FOR TWENTY YEARS!) AND RETRIEVED AN EXHAUST VALVE PART NUMBER 930735.....
BUT,ON COMPARISON.......THE HEAD OF THE VALVE 99T 3DR IS MUCH THICKER?POSSIBLY 2MM...
![Dunno :dunno:](./images/smilies/dunno.gif)
BOTH HAVE THE SMALL DOT IN THE CENTRE TO INDICATE SODIUM COOLED VALVES......
I THINK POSSIBLY THE EXHAUST VALVE SET HAS BEEN REPLACED AT SOME TIME ON THE 2DR 99T? BUT FROM WHAT ENGINE DOES THE PART NUMBER 836440 COME FROM?
DOES ANYBODY HAVE ACCESS TO VALVE PART NUMBER CATALOGUE?
BIRDIE