BC 272 install

[kj2fast4u92]

Hey everyone. i have a 1994 Mitsubishi Eclipse GS 2.0 i spun a rod bearing in the motor and so i went and bought a low mileage replacement motor.

Anyways the replacement motor has stock cams in it and my old motor has Brian Crower 272s. So naturally i want to switch those over to the new motor. Now the thing is though is that i have no timing tools of any sort, and i dont really know how to time a DOHC motor anyways.

So my theory is that i could take a white paint marker and mark the timing belt and the cam gears one spot on each side. Then, remove the gears and stock cams and put the BC cams onto the previously marked gears. Then i would just have to line up the paint marks and be good to go.

However, i am not sure about one thing. would the stock cams and BC cams be in the exact same position when installed into the gears? As in is there like a "flat spot" that makes the cam be in a certain position when the gear is put on? If not then my time saving idea is shot.

 

[WES_393]

Just look up how to time your engine. The only tools you really need are a C-Clamp, zip ties, and two adjustable wrenches. The C-Clamp to compress the tensioner (do this VERY slowly) and zip ties to hold the belt onto the cams when you get the timing marks lined up.

The white paint idea would work, but using the stock timing marks would be the best way to do it.

 

[dexterholland04]

VFAQ on a timing belt swap: Timing Belt VFAQ (Timing Belt TSB - ENHANCED)

This will tell you the in's and out's of timing a 4G63 motor. All of the special tools you need can be found here: http://www.jayracing.com/index.php?main_page=product_info&cPath=17_229&products_id=214

If you plan on doing it right, I would buy the right tools. I've used these ones to put countless timing belts on my DSMs and other people's DSMs too.

 

[BogusSVO]

If you have stock springs on the new motor head you may want to check the old head that has the BC272 and see if it has the matching springs and retainers and swap them over.

 

[kj2fast4u92]

Ok thanks guys. sorry for askin noob q's i usually try to figure things out on my own, but coming from a pushrod v8 background alot of this stuff is new to me.