PDA

View Full Version : setting timing with no belt cover


swedge
20-09-11, 10:27 AM
on a 20seh

theres a cutout on the belt cover for the cam timing mark but my cover is kinda broke

the crank pulley is easy enough setup without it

any ideas on how to set it
simonm
20-09-11, 10:46 AM
What cam and pulley you using
swedge
20-09-11, 10:51 AM
with will be a 272 from autosprint, will be a vernier pulley but was gonna set the timing to standard untill i get it to a rr
simonm
20-09-11, 11:13 AM
Well just set your pulley at 0 then pop the rocker cover off get the crank to TDC when no 4 cylinder is rocking on the lobes no1 the lobes should be both facing away from the rockers evenly that will give you your standard timing stick the belt on and turn the crank twice by hand then recheck that should get you started any way hope this helps
swedge
20-09-11, 01:28 PM
so the lobes on number 1 and 4 should be pointing directly up yeah
simonm
20-09-11, 01:45 PM
Yea that's it they should be around the 2oclock and 10oclock ish position on no1 and direct opposite on 4 just between opening the two valves that's called rocking so if ya get me it's rocking on 4 and firing on 1 hope I'm not confusing you
simonm
20-09-11, 01:48 PM
Sorry only on no1 should be pointing up 4 is directly opposite
tommy8252
21-09-11, 08:07 AM
To get no1 to top dead centre remove no1 spark plug and poke a long screw driver in, then turn the crank gently until you feel the screwdriver raise. When the screw driver comes all the way up and then starts to go back down, take it back to its highest point. This should be no1 at top dead centre and follow the above for cam setup. Once their both in position throw your belt on. It's a completely pikey method but with out a timing cover there's not much else you can do.
swedge
21-09-11, 01:44 PM
theres actualy a mark on the small crank pulley that lines up with a line just above the sump so the setting the crank is easy enough
swedge
21-11-11, 03:03 PM
sorry to bring up an old thread but im just changing my cam pulley again

just to get this right, the cam lobes on cylinder 1 should be around the 2 and 4 oclock position same with the lobes for cylinder 4?
tommy8252
22-11-11, 08:53 PM
Cam lobes should be at 10 and 2 o'clock on 1 and 4