PDA

View Full Version : delta cam timing?


jagojon3
07-02-2003, 05:00 PM
Ok I finally got my car running with the delta cam... I was not given a card with the cam, but I was told the valve lash specs are .006 intake and .008 exhaust, is this correct? And should I advance the timing at all with this cam? (272)
1988starter
07-02-2003, 06:17 PM
Start by setting it to the correct TDC mark use a timing gun as a different cam profile will make it slightly retarded ask mike his was all off but we fixed it at the ontario meet (pics in the accord pics section).
jagojon3
07-02-2003, 09:57 PM
So if the cam makes is slightly retarded then you have to advance it a little right?
1988starter
07-03-2003, 01:53 AM
I think so but it is still best to get a timing light.
jagojon3
07-03-2003, 04:56 PM
I do have a timing light. Will hooking it up to the coil instead of cyl 1 be ok? The light flashes much faster and is easier to read.
A20A1
07-03-2003, 07:49 PM
If the cam has too high an overlap you'll lose some manifold vacuum. So your distributor advance diaphragm won't pull as much.
jagojon3
07-03-2003, 10:51 PM
um... what? overlap?
A20A1
07-03-2003, 11:01 PM
high duration increases valve overlap... the time when both the intake and exhaust valves are open.
jagojon3
07-04-2003, 07:58 AM
ok so does that mean I should advance it then?
Mike's89AccordLX
07-04-2003, 09:24 PM
Ok DeltaCam doesn't send you a card with it. They have a sticker on one of the sides of the box, that has the specs. And for the advancing, just put the light on the 1 cylinder after the cam is installed and check it out. It takes like 5 minutes to do that. My car runs a lot better without the retarded timing (hehehe) except for the clanking exhaust now. If it isn't one thing it's another.
1988starter
07-06-2003, 05:34 PM
Originally posted by Mike's89AccordLX
Ok DeltaCam doesn't send you a card with it. They have a sticker on one of the sides of the box, that has the specs. And for the advancing, just put the light on the 1 cylinder after the cam is installed and check it out. It takes like 5 minutes to do that. My car runs a lot better without the retarded timing (hehehe) except for the clanking exhaust now. If it isn't one thing it's another.

Yea that was an interesting sound
Mike's89AccordLX
07-06-2003, 08:41 PM
Sounded like a coffee can and I hate it.
jagojon3
07-07-2003, 04:14 PM
Hey guys I advanced my timing to a few different places, even all the way the dist. would turn and I notice no difference at all. I hear you can advance it until it starts to ping, but I advanced it all the way and no pinging, no power increase either! My car has had no speed improvement since installing the cam, it may even be a bit slower. What's the deal?
A20A1
07-07-2003, 04:30 PM
set the distributor to TDC... and then make a mark on the head.. then from that mark advance the distributor 3mm... and make a new mark.
1988starter
07-07-2003, 05:09 PM
Originally posted by jagojon3
Hey guys I advanced my timing to a few different places, even all the way the dist. would turn and I notice no difference at all. I hear you can advance it until it starts to ping, but I advanced it all the way and no pinging, no power increase either! My car has had no speed improvement since installing the cam, it may even be a bit slower. What's the deal?

Did you check using a timing gun also did you accidently move the timing belt one tooth back. one more thing are your valves set correctly.
jagojon3
07-07-2003, 09:05 PM
Yes valves are correct, and the timing belt is dead on. So I should advance 3 mm? What if I went more? Just to be sure, advancing is turning the distributor against engine rotation, correct?
anchovies
07-08-2003, 08:07 PM
Originally posted by jagojon3
What if I went more? Just to be sure, advancing is turning the distributor against engine rotation, correct?

That's right.
Put it at the recommended timing first and then try to start. If it's okie, then advance more.