:::RHMT::: Real Home Made Turbo

General Category => Hybrid/Tech => Topic started by: random-strike on August 04, 2010, 09:32:28 PM

Title: 1st gen cam timing marks
Post by: random-strike on August 04, 2010, 09:32:28 PM
Anyone know how to line up the cam on the 1st gen crx FI motor???

the cams are different than all the newer motors, they don't have the same marks.

there is a tdc mark for the crank pulley but i don't know how to set the cam

Title: Re: 1st gen cam timing marks
Post by: DasPoop on August 04, 2010, 11:14:56 PM
going out on a limb but are you talking about a 1st gen ZC. I could think that you could check the distributor to see if it lines up at the no1 terminal?(assuming its like a normal honda and the distributor only goes in one way.  i mean its at least a start??
Title: Re: 1st gen cam timing marks
Post by: crttaz on August 04, 2010, 11:19:22 PM
86-87 Si????

Like timing a D15B1/2/7/8
Title: Re: 1st gen cam timing marks
Post by: DasPoop on August 04, 2010, 11:22:35 PM
i dont think the d15a3 or whatever it was has the same marks as the later motors. and it doesnt have dots or anything in the cam gear?
Title: Re: 1st gen cam timing marks
Post by: crttaz on August 04, 2010, 11:26:26 PM
two marks on the cam gear level with valve cover surface and then TDC (white mark) on the crank pulley.

RTFM!!!!!

Title: Re: 1st gen cam timing marks
Post by: random-strike on August 04, 2010, 11:30:21 PM
two marks on the cam gear level with valve cover surface and then TDC (white mark) on the crank pulley.

RTFM!!!!!



it could be 180 off that way...

what i have heard and am going to try is cam marks level with head and the side with the numbers on it facing up.
Title: Re: 1st gen cam timing marks
Post by: DasPoop on August 04, 2010, 11:32:50 PM
two marks on the cam gear level with valve cover surface and then TDC (white mark) on the crank pulley.

RTFM!!!!!



it could be 180 off that way...

what i have heard and am going to try is cam marks level with head and the side with the numbers on it facing up.

thats why i suggested look under the cap to make sure the rotor points towards no1 and not no4
Title: Re: 1st gen cam timing marks
Post by: crttaz on August 05, 2010, 12:22:44 AM
UP means up, how hard is that to fuck up????
Title: Re: 1st gen cam timing marks
Post by: snm95ls on August 05, 2010, 12:26:33 AM
UP means up, how hard is that to fuck up????

+1
Title: Re: 1st gen cam timing marks
Post by: random-strike on August 05, 2010, 02:14:49 AM
morons,

there is not up on these old cams.
Title: Re: 1st gen cam timing marks
Post by: crttaz on August 05, 2010, 03:11:45 AM
morons,

there is not up on these old cams.

Try looking on the fucking CAM GEAR. Might be easier to see if you take that 12v cam out of your fucking ass!!!!!
Title: Re: 1st gen cam timing marks
Post by: random-strike on August 05, 2010, 03:15:08 AM
morons,

there is not up on these old cams.

Try looking on the fucking CAM GEAR. Might be easier to see if you take that 12v cam out of your fucking ass!!!!!

why do dumb asses always have to start flame wars. there are no up marks on the cam gear.

there are only twostraight lines and three numbers
Title: Re: 1st gen cam timing marks
Post by: crttaz on August 05, 2010, 03:18:23 AM
morons,

there is not up on these old cams.

Try looking on the fucking CAM GEAR. Might be easier to see if you take that 12v cam out of your fucking ass!!!!!

why do dumb asses always have to start flame wars. there are no up marks on the cam gear.

there are only twostraight lines and three numbers

Where did I say up marks???? UP is on the cam gear, at least the one I was working on this weekend at Mid Ohio.
Title: Re: 1st gen cam timing marks
Post by: theidealone on August 05, 2010, 03:46:01 AM
What the fuck? Hes saying that the cam gear doesnt say ANYTHING about up. Only the side marks, that you would level with the head. So if he doesnt check to see that the dizzy is at #1, he could set it 180* off.

Title: Re: 1st gen cam timing marks
Post by: crttaz on August 05, 2010, 05:51:53 AM
I guess I'm clueless on 1G CRX's.....although #23 is running my 13x6 Rials

(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi107.photobucket.com%2Falbums%2Fm307%2Fbonespec%2FHonda%2FSCCA%2FIMG_0121.jpg&hash=85a64cfb0d2a67271321e1c7191393278bc00b89)

(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi107.photobucket.com%2Falbums%2Fm307%2Fbonespec%2F3%2520Hondas%2FPB230004.jpg&hash=2f318ae22b6548487ba7ba3c1b32ab176988c35a)

I sold Ryan the rims for $100 on the basis they would return to competition, he made good on it!

oops.....

Ryan Scott off (http://www.youtube.com/watch?v=PjUZU1B635o#normal)
Title: Re: 1st gen cam timing marks
Post by: snm95ls on August 05, 2010, 07:49:43 AM
Once again Johnny knows everything.

I guess he is too goddamn dumb to look at cam lobes to figure out how to net set the cam 180 out.

Title: Re: 1st gen cam timing marks
Post by: Joseph Davis on August 06, 2010, 08:51:25 PM
I own Foowee's old 86 Si.  Bone is correct, Johnny is dumb.

Johnny, DasShit posted up a MOD pass recently.

Johnny, there are links to Classic Si Helms manuals stickied in this forum.

Johnny, is this your first time working on a car?  I don't mean one of your imaginary nine second 52 mpg turbo builds that never have a problem and still run to this day, I mean working on a car in the real world?
Title: Re: 1st gen cam timing marks
Post by: snm95ls on August 06, 2010, 10:31:10 PM
I own Foowee's old 86 Si.  Bone is correct, Johnny is dumb.

Johnny, DasShit posted up a MOD pass recently.

Johnny, there are links to Classic Si Helms manuals stickied in this forum.

Johnny, is this your first time working on a car?  I don't mean one of your imaginary nine second 52 mpg turbo builds that never have a problem and still run to this day, I mean working on a car in the real world?

Wrong.

Idiots.
Title: Re: 1st gen cam timing marks
Post by: random-strike on August 07, 2010, 02:27:51 AM
I own Foowee's old 86 Si.  Bone is correct, Johnny is dumb.

Johnny, DasShit posted up a MOD pass recently.

Johnny, there are links to Classic Si Helms manuals stickied in this forum.

Johnny, is this your first time working on a car?  I don't mean one of your imaginary nine second 52 mpg turbo builds that never have a problem and still run to this day, I mean working on a car in the real world?

i've worked on your mom several times, she is about the size of a car
Title: Re: 1st gen cam timing marks
Post by: Foowee on August 07, 2010, 07:22:11 AM
http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aai.png.html (http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aai.png.html)

http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aay.png.html (http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aay.png.html)

http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aaz.png.html (http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aaz.png.html)

http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aba.png.html (http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aba.png.html)
Title: Re: 1st gen cam timing marks
Post by: Joseph Davis on August 07, 2010, 10:06:26 AM
I own Foowee's old 86 Si.  Bone is correct, Johnny is dumb.

Johnny, DasShit posted up a MOD pass recently.

Johnny, there are links to Classic Si Helms manuals stickied in this forum.

Johnny, is this your first time working on a car?  I don't mean one of your imaginary nine second 52 mpg turbo builds that never have a problem and still run to this day, I mean working on a car in the real world?

i've worked on your mom several times, she is about the size of a car

I think you went to her neighbor's house, mom's lost a lot of weight due to the cancer.  I know it's an easy mistake for you to make, you see a real fatty unloading four dozen boxes of twinkies from her car and you get all sweaty palmed with excitement, don't even stop to check the house number. 

Mom's probably lonely if you want to go over there and do some work now, though.
Title: Re: 1st gen cam timing marks
Post by: random-strike on August 07, 2010, 11:55:22 AM
http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aai.png.html (http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aai.png.html)

http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aay.png.html (http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aay.png.html)

http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aaz.png.html (http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aaz.png.html)

http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aba.png.html (http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aba.png.html)

apparently the 86 si is different. because it doesn't have those marks
Title: Re: 1st gen cam timing marks
Post by: Ntrain2k on August 07, 2010, 12:22:10 PM

apparently the 86 si is different. because it doesn't have those marks

Post a pic of what you have.
Title: Re: 1st gen cam timing marks
Post by: DasPoop on August 07, 2010, 04:14:00 PM
Silence
Title: Re: 1st gen cam timing marks
Post by: random-strike on August 07, 2010, 05:05:03 PM
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fsphotos.ak.fbcdn.net%2Fhphotos-ak-snc4%2Fhs285.snc4%2F40571_142722672416911_100000375370536_279425_5307203_n.jpg&hash=6cd995a7a8bf3836bb7b0fd23c3731e26288db64)
Title: Re: 1st gen cam timing marks
Post by: DasPoop on August 07, 2010, 05:07:28 PM
so whats keeping you from getting everything in time?
Title: Re: 1st gen cam timing marks
Post by: random-strike on August 07, 2010, 05:09:07 PM
so whats keeping you from getting everything in time?

teh fact that i don't want to work onit and i really don't care
Title: Re: 1st gen cam timing marks
Post by: DasPoop on August 07, 2010, 05:12:11 PM
spoken like a true asshole
Title: Re: 1st gen cam timing marks
Post by: snm95ls on August 07, 2010, 07:30:14 PM
so whats keeping you from getting everything in time?

teh fact that i don't want to work onit and i really don't care

So you are lazy and complacent.

I see no irony there...

Title: Re: 1st gen cam timing marks
Post by: Foowee on August 08, 2010, 09:09:22 AM
Just put the belt on n go...  If you're off a tooth you'll be able to tell by the way it drives. 

When I originally purchased the 86, that Joseph now owns, the cam timing was so far off it was causing the car to overheat.  I'm fairly certain you have to be off really far to bend some valves. 

Also it's impossible to be 180 degrees off with a sohc...  the cam spins half the speed of the crank...
Title: Re: 1st gen cam timing marks
Post by: ApexSilver06MR on August 08, 2010, 02:32:30 PM
make sure the keyway is up
Title: Re: 1st gen cam timing marks
Post by: Ntrain2k on August 08, 2010, 03:10:44 PM
Yep.

Just like it shows in the 1st pic link posted.

Bottom right.

http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aai.png.html (http://www.redpepperracing.com/technical/v/87Civ-fsm/87Civ-fsm-chap6/aai.png.html)
Title: Re: 1st gen cam timing marks
Post by: snm95ls on August 08, 2010, 05:07:08 PM
...Also it's impossible to be 180 degrees off with a sohc...  the cam spins half the speed of the crank...

I want you to think about that statement and tell why you are wrong.

Title: Re: 1st gen cam timing marks
Post by: Foowee on August 08, 2010, 05:17:02 PM
...Also it's impossible to be 180 degrees off with a sohc...  the cam spins half the speed of the crank...

I want you to think about that statement and tell why you are wrong.

Cause the dizzy drive can be slopped out n put in backwards?  If the dizzy key was removed from the dizzy and replaced incorrectly? 

I don't see how I'm wrong...
Title: Re: 1st gen cam timing marks
Post by: DasPoop on August 08, 2010, 07:21:04 PM
on a 4cyl with 90 degree firing angles its possible to be 180 off. only motors i have worked on that cant be 180 off are 3 cyl geos because the crank angles are 120 degrees apart.
Title: Re: 1st gen cam timing marks
Post by: snm95ls on August 08, 2010, 08:02:20 PM
...Also it's impossible to be 180 degrees off with a sohc...  the cam spins half the speed of the crank...

I want you to think about that statement and tell why you are wrong.

Cause the dizzy drive can be slopped out n put in backwards?  If the dizzy key was removed from the dizzy and replaced incorrectly? 

I don't see how I'm wrong...

Think about this.  When if ever will the engine ever have both valves closed on cylinder 1, while pistons 2 and 3 are at TDC?

Never in a 4 cycle engine that I am aware of will you have both valves closed while the piston is at NDC.
Title: Re: 1st gen cam timing marks
Post by: DasPoop on August 08, 2010, 08:10:02 PM
...Also it's impossible to be 180 degrees off with a sohc...  the cam spins half the speed of the crank...

I want you to think about that statement and tell why you are wrong.

Cause the dizzy drive can be slopped out n put in backwards?  If the dizzy key was removed from the dizzy and replaced incorrectly? 

I don't see how I'm wrong...

Think about this.  When if ever will the engine ever have both valves closed on cylinder 1, while pistons 2 and 3 are at TDC?

Never in a 4 cycle engine that I am aware of will you have both valves closed while the piston is at NDC.

both valves will still be closed at the bottom of the power stroke the exhaust usually opens around 30 degrees back up on the exhaust stroke
Title: Re: 1st gen cam timing marks
Post by: snm95ls on August 08, 2010, 08:16:15 PM
...Also it's impossible to be 180 degrees off with a sohc...  the cam spins half the speed of the crank...

I want you to think about that statement and tell why you are wrong.

Cause the dizzy drive can be slopped out n put in backwards?  If the dizzy key was removed from the dizzy and replaced incorrectly? 

I don't see how I'm wrong...

Think about this.  When if ever will the engine ever have both valves closed on cylinder 1, while pistons 2 and 3 are at TDC?

Never in a 4 cycle engine that I am aware of will you have both valves closed while the piston is at NDC.

both valves will still be closed at the bottom of the power stroke the exhaust usually opens around 30 degrees back up on the exhaust stroke

Not exactly what I was trying to get at, but I didn't think of that scenario.
Title: Re: 1st gen cam timing marks
Post by: DasPoop on August 08, 2010, 08:30:37 PM
lets just say if the cam is 180 off shit is going to get bent it wont run and you wont ever do it again
Title: Re: 1st gen cam timing marks
Post by: Foowee on August 08, 2010, 10:50:02 PM
Okay...  1 and 4 are at tdc.  2 and 3 are at bdc.  Flip the cam 180.  Which valve events change kids?
Title: Re: 1st gen cam timing marks
Post by: snm95ls on August 08, 2010, 11:47:19 PM
I have been thinking it thorough in my head, and I was thinking crankshaft 180 degrees out apparently.  Different story.

In short you are correct, although possibly too narrow in scope?  Now that I think about it, it doesn't matter on any 4 stroke engine.

I R an idiot.





Title: Re: 1st gen cam timing marks
Post by: Joseph Davis on August 09, 2010, 12:19:14 AM
The old azn smiley would be apropo right now.
Title: Re: 1st gen cam timing marks
Post by: snm95ls on August 09, 2010, 01:08:33 AM
The old azn smiley would be apropo right now.

Or the old dunce cap smiley.

Title: Re: 1st gen cam timing marks
Post by: HiProfile on August 09, 2010, 01:11:49 AM
Random-strike threads always make me feel smarter after I read them. By smarter I mean superior in comparison.

What do you call 50 of johnny's posts at the bottom of the sea? A good start.