zanelefko

iTrader: (2)

Heres the story, bought my evo used with a built bottom end, the previous owner put the head on, cams, etc. when he timed it, he used the 4g63 belt but it was a tooth short and the car kept going in and out of timing. I had a new timing job done and when i look at the cam gears, they line up TDC and pistons are TDC, BUT, the crank pulley mark is 9 degrees or so off.. The car is not making the power it should be on the dyno and seeing weird knock, could it be an issue of the crank pulley being off?

Sarg

Is it advanced or retarded?

zanelefko

iTrader: (2)

I believe advanced

evoyrrah

iTrader: (2)

i been through this crap....it can be confusing....what you need to do is line up the crank and then u have to line up the "inner tdc marks" on your cam gear to the marks on the rocker cover.....ignore the outer marks on the cam gear

zanelefko

iTrader: (2)

What do u mean by inner tdc marks?

evoyrrah

iTrader: (2)

It has aftermarket cam gears, yes?

zanelefko

iTrader: (2)

Yes

evoyrrah

iTrader: (2)

Well ur cam gears should have 2 tdc marks on them, one on the inner part of the gear with +/- 10* and the same on the outer part of the gear, correct? Just ignore the outer marks and line up the inner tdc mark to the rocker cover mark......simple as that bud

zanelefko

iTrader: (2)

Gotcha, so line the crank up tdc the simply manually find tdc with the pistons and line up the inner ones based on that..

zanelefko

iTrader: (2)

Thanks for the help man cus as it is now im losing 130whp or so than what my car should be making

craigybaby37

when i done my 4g64 build i had to find TRUE tdc with a dti gauage as the bottom pulley was about 2 degrees out.

I was lucky when i done mine though as hadnt set the cams up yet so the cam wheels had no advance or retard on them.

Then once i was happy with the timing i then set about timing the cams to there correct lift at or before TDC

FL_SilverEvo8

iTrader: (15)

evoyrrah: could post up a picture on what you mean by these marks on the inner and outer ? What cam gears are you using? Is the cam gears post to be at 3.75 retarded sence the 2.4 block height is higher? Once you have it at 3.75 and you line it up it should be tdc. Right?

zanelefko

iTrader: (2)

Well, as of now, my crank pulley is 9 degrees out, so Im having my timing redone tomorrow at Billet Design in Pompano Beach and getting a new tune etc.