Triumph Repair: Adjusting valves 72 TR-6, roadster factory, degree wheel


Question
QUESTION: Great explanation on adjusting valves however my car has a new mild cam and calls for different settings on intake timing 22-70, VL .415" ,VC .012", FL 112, LTDC .039 the exhaust timing 63-28, VL .400, VC .014, FL106, LTDC .045 . how do I know which is which is one ,odd and one even/
? your example did not tell me as all valves were valves to .010 clearance.  I'm also not sure on the timing as All I have is one timing pointer and a marker on the flywheel with no hashes for degrees. Headed to an SCCA event this weekend hopefully running smooth. Last question my oil pressure sits a little above 25 at idel and at speed about 55, this is a newly rebuilt engine from the roadster factory doesn't this seem low? perhaps the gage is wring? Thanks new to all this Bob G

ANSWER: Bob, what I gave you was the factory specs for a stock cam. if you have a different cam, you need to refer to the specs from the cam manufacture. Most cam manufactures will supply a card with the opening and closing degrees and you can use a degree wheel mounted on the crankshaft. Is that where you took those numbers from? You can still adjust the cam to meet those specs with a degree wheel and by flipping the sprocket over to get half tooth adjustments. It looks like they use a different valve clearance too .012" on the intake and .014" on the exhaust. Valve clearance is always set by the cam manufacture not the engine manufacture.
Howard

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QUESTION: the cam  and engine are set up and running now 1000 miles on them. My issue is when going to adjust the #1 /#3 etc. which one is the intake and which one is the exhaust? I cant see the valves as the engine is installed and operating so Im not sure which one to set at .014 and which one to set at .012? Thanks BG

Answer
Bob, all you need to do is look at the exhaust header and the intake manifold and you can see that the valve arrangement is from front to rear, Ex,in-in,ex-ex,in-in,ex-ex,in-in,ex. Even though the intakes are a little above the exhaust the order is as it appears.
Howard