Who Wants To Dial In My Aftermarket Camshaft?

[Raven]

So, as most of you know, I reside in Adelaide.

 

I require someone on here with the technical know-how to re-dial in my cam on my 5K in the KE36 and yes, I do have the cam specs.

 

After giving it a shot today the damn thing just keeps backfiring through the carbs.

 

So far I've align the cam via a dial indicator and setting the motor at TDC with the dial indicator set on the intake lobe #1 on the bottom heal of the cam lobe as per instructions. I put the engine back together and keyed it over and it wouldn't start, just the backfiring through the carbs as previously mentioned. I've also switched the dizzy around 180 degrees to make sure it wasn't out and that hasn't helped things much either.

 

So to those people in the know who would be kind enough to give me a hand at some point in the next week or two on a Saturday or Sunday, there is a carton of beer or a bottle of scotch or bourbon (Gentleman Jacks, Jimmy Black, maybe Blanton's if you're special), whichever is your preference, in it for yourself or I can pay you cash. I don't expect anyone to do this for free, unless you need some computer-related work done and then I'd be happy to exchange a service for a service.

 

I'm about ready to can the project, I'm pretty peeved and would really LOVE to have this panel van as my daily, but it's starting to grind my gears pretty well.

 

So, if anyone can help me, it would be GREATLY appreciated.

 

Cheers

Mick

Edited April 5, 2010 by Raven

[SLO-030]

I have a book with how to do it. I can also read.

 

How's friday afternoon for you?

[Raven]

I have a book too. I also read how to do it, henceforth the following of instructions :blush:

 

Friday arvo is no good as I work Mon-Fri 9-5.

[SLO-030]

After work?

[bmxsexmonkey]

i'd do it but as ryan know i can't read

[towe001]

I have a book with how to do it. I can also read.

 

 

I have a book too. I also read how to do it, henceforth the following of instructions :dance:

Good to see that the Australian education system does pay off :blush:

 

 

Never had to time a cam before, but i'd imagine that if the cylinder is at TDC that'd mean the valves are fully closed and the spark is about to arrive. So wouldn't the cam be set the same way - valves fully closed and not set so that the exhaust is on the verge of opening. My take of it is that the "heel" is the start of the "ramp" for the lobe.

[rob83ke70]

my guess is that your distributor is 180 degrees the wrong way.

 

double check your cam timing by verifying valve events in relation to piston position, and then check your distributor position in relation to valve events and piston position. having the rocker cover off for this is a good idea.

 

make sure your plug leads are on in the right order (1342)

 

gotta start with the simple things.

 

Robert.

[Felix]

It isn't that hard.

 

On TDC firing stroke on cylinder 1, both valves should be closed. No 4's valves should be on the rock. ie exhaust closing and inlet opening.

 

Just remember one tooth out = 20 degrees of cam timing out (in relation to the crank).

 

Worry about the dizzy after the cam is setup.

 

Oh yea dialing in a cam involves the use of an adjustable cam gear (or offset keys), a degree wheel and a dial indicator.

[TRD ke70]

If you want to do it correctly, get yourself a degree wheel and a dial gauge.

In the spec's it should give you the opening of no 1 inlet valve, in degrees at 50 thou lift.

 

so put the dial gauge on a lifter or push rod, set the engine to TDC, set the degree wheel on the crank with a pointer to 0.

Line up the factory timing marks for the cam, that should give you No 1 inlet fully CLOSED, , don't for get to 0 the dial gauge, now rotate the crank until you get the degrees the spec's say for 50 thou lift, you should then have 50 thou lift on your dial gauge.

 

It pays also to check the exhaust lobe as well.

 

Unless you have an adjustable cam gear you won't be able to correct it, you'll find most cams are very close if not perfect with factory marks.

 

Hope this helps mate!!

[philbey]

Yeh that was my thought mick, you can't really get a K engine cam wrong, it's more likely the Dizzy. There's a bit of a knack to getting dizzy's in and out and get it in the right spot.

 

I'm not up to that much this weekend mate, drop me a message.

 

oh and as for credentials (lol) my worked twin carbed big cam 5K started second crank!!

Edited April 6, 2010 by philbey

[Raven]

Yeh that was my thought mick, you can't really get a K engine cam wrong, it's more likely the Dizzy. There's a bit of a knack to getting dizzy's in and out and get it in the right spot.

 

I'm not up to that much this weekend mate, drop me a message.

 

oh and as for credentials (lol) my worked twin carbed big cam 5K started second crank!!

 

I will employ your services this weekend then. :blush:

 

I have the aforementioned degree wheel and dial indicator and magnetic stand for the dial indicator etc etc.

 

Its just really strange that it doesn't want to start. It fires.....little flames outta the tops of the carbs haha. I did try spinning the dizzy around 180 degrees and that didn't help either.

 

Anyway, I'll call or message you later tonight and have a chit chat about it.

[rockinrolla]

it sounds like you need to retard the timing, I had a problem very much the same and found that the oil pump locater at the end of the distributor had to be in the correct position for it to be fully inserted, back firing was a problem until I turned the oil pump 1/8th turn clock wise with a screwdriver whilst the dizzy was removed and placed the dizzy back in, it took a bit of time to get it exact, but that was the problem, the locator on the bottom of the dizzy was in the wrong position which placed the camm gear and the dizzy 1 or 2 teeth out, as the gentleman previously stated, 20 deg 1 tooth, good luck and hoped this helped.

Edited April 11, 2010 by rockinrolla

[camerondownunder88]

Hey,

Ill be down next weekend I could help...

 

But also note I had a cam in a 5K once and the small pin in the front that aligns with the small hole on the cam gear sheered. Causing tming to be way out and vary as the sprocket spun.

 

This can happen not to alarm you but make sure the pin is still good. Other wise can't really dial in cam unless you have an adjustable cam sprocket. But these can be found for K motors.

 

Cam

[Raven]

Its all been sorted Cam.

 

Will be keen to catch up though :bash:

[philbey]

Yeh we got her running. All sorted.

 

Part of the issue was the 5K timing cover and what is obviously a 3k/4k crank pulley, although someone had marked the pulley for the different timing cover marks.