EA82T CAM Timing - no flywheel!

[NigelD]

Is there any way of aligning the Cams without using the three lines on the flywheel?
I have an EA82T fitted to a kit car with a VW box, so the flywheel is different (even if I could see it!).
I know that you should line up the marks on the flywheel and line up the right-hand cam to the top mark, rotate crank 360 and line the left cam to the top mark. But I cannot find a way of aligning without using the flywheel.

Is there anything like the locating stud in the crank pully that is always located in the same position to align with? I know that I maybe 180o out but at least there would only be two options.

Many Thanks.

[FROG]

showthread.php?t=13606

Try here

[NigelD]

Thanks for that link - must have missed it...

So TDC can be aligned from the crank pully, and 2 notches will give 20degrees for the distributor timing.
But they do not relate to the timming markings for the Cam alignment - or am I missing something?

[steptoe]

Those three marks you don't have are basically a point where there is no valve spring tension causing camshaft to turn the whole thing a blip or two so you could make your own marks on front pulley. I think that if timing marks TDC zero degres is at 0/360 of circle the three marks are 90 degrees after TDC from memory

[discopotato03]

What they actually represent are the longer middle one - center stroke , and a figure probably a crank degree or two before and after center stroke .

Do not mistake ignition timing and cam timing because they are completly different things . The only direct relationship in an EA82 is that the nearside (RHS looking from the front) camshaft drives the distributor .

What you may be able to do is get one of those large diameter timing wheels that fits in the place of the crankshaft pulley and make a wire pointer up for a temporary reference point .

A .

[steptoe]

Is centre stroke where all four pots are halfway from top to bottom?

I know I appreciate this subaru thoughtfulness for the service people which is rare when comparing many other designs such as twin cams where when lining things up there is valve spring tension working against you and the need for special tool to lock things in place while you fit belt

[discopotato03]

Yes its common for a belt driven twin cam engine to need some sort of clamping device to hold the pulleys in place while the belt/s idlers and tensioners are changed .
I don't recall having any issues with the cams moving when I did the belts on my original EA82T engine .
And yes center stroke is when all four pistons are half way up or down their bores - two will have been rising and the other two falling .
Sorry if this sounds confusing , this is because everything goes "sideways" in or out on flat engines .

Just don't forget to rotate the crank 180 degrees to fit the second or outer belt . This is because the two cylinder banks are 180 crank degrees apart .

A .

[Gannon]

0deg is when cylinder no1 is at top dead centre

Remove the spark plug from cylinder number 1 and shine a torch in there, then rotate the crankshaft till you see the piston reach the highest point. This is where you want to be.

Is it possible to remove your current flywheel and copy the timing marks from an EA82 flywheel onto it?