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Engine pulling and Camshaft spec

Posted by Morten 
Morten
Morten
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Engine pulling and Camshaft spec
February 20, 2006 01:46PM
Continuation of : "Diagnosing and repairing motor problem".

Okay so the motor's coming out, the learning experience will be good for me.

Taro, I've found a place in Vancouver that rents hydrolic engine hoists. : ) Just let me know what's day's good for you. I'll pick up some propane to heat the garage and steaks to BBQ.

Since the motor is coming out anyways, it seems like the perfect time to have a beefier cam spec'd for the motor.

JVL is this something that you're able to advise on ? (spec's for a replacement cam)
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john vanlandingham
John Vanlandingham
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Re: Engine pulling and Camshaft spec
February 20, 2006 02:15PM
Pull the front cover and see if all those skids and chains are still there.
I probably have photos.

BEFORE you pull the motor.



John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

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CALL +1 206 431-9696
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sagsert
Mustafa Samli
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Re: Engine pulling and Camshaft spec
February 20, 2006 02:20PM
Morty,

Did you ascertain that there is a problem with the ENGINE (not motor) ?

All you wankers are driving me nuts referring to your engines as MOTORS. You wanna sound like an Apalcahian American ? Go watch NASCRAP.

JVL I double dog dare you to tell me that the Francophones refer to the engine as MOTEUR. I double diggity dog dare you.

tongue sticking out smiley



Cheers
M.Samli
Phoenix AZ
Gaylant VR4
EVO III GSR (Stolen)


Rallies are no place for traitors
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Morten
Morten
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Re: Engine pulling and Camshaft spec
February 20, 2006 02:29PM
Mustafa I think you were nuts long before I started calling Engines, "Motors" !

It's not the NASCAR influence... they're called "Motors" in my mother tongue and sometimes I get confused.

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Pete
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Re: Engine pulling and Camshaft spec
February 20, 2006 05:55PM
Yeah they are engines not motors! Just like as in the Bureau of Motor Vehicles, motorcycles, General Motors, Ford Motor Company, Honda Motor Company...





Pete Remner
Cleveland, Ohio

1984 RX-7 (rallycross thing)
1978
Silence is golden, but duct tape is silver.
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john vanlandingham
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Re: Engine pulling and Camshaft spec
February 20, 2006 08:14PM
Got the front cover off yet? get the rad out of the way and approach from the front.
Do nothing till you do that.

As for cams, just having a max lift and a duration figure really doesn't tell the RATE of opening*, and that's why I have ALWAYS said it's better to buy cams from Uk or better Sweden cause then you can be assured it was developed for rally use and that's what we do.
Now with a G52 hybrid you don't have lots of choices.But you do want something with maybe 11. sumpin lift and duration maybe like 290 to 300 degrees and maybe 106 degrees lobe separation.

* My camgrinder say to illuistrate how impossible it is to say what a cam is like from just max lift and timing quoted at ???
He says "I'm thinking of a place that is 3.3 miles (distance= lift) and will take me exactly 17 minutes (time+duration) to gety there. Tell me from that what route I will take and how fast I will drive the whole way."



John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.
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Morten
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Re: Engine pulling and Camshaft spec
February 20, 2006 08:26PM
No the front cover is still on there.

We're working on it tomorrow afternoon. I'll post some nice picies once we get it apart.

Is this a typo for the cam lift ?

"11. sumpin lift".

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john vanlandingham
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Re: Engine pulling and Camshaft spec
February 20, 2006 09:18PM
Morten Wrote:
-------------------------------------------------------
> No the front cover is still on there.
>
> We're working on it tomorrow afternoon. I'll post
> some nice picies once we get it apart.
>
> Is this a typo for the cam lift ?
>
> "11. sumpin lift".
>
>

No it means eleven point 'something' in John-talk. I can't say fer shits the "th" sound and it comes out as 't', 'd' 'f' and even 'p'.

11.4 or 11.6 or.....

Go out there now and take the cover off.




John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.
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Jens
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What is wrong with it?
February 20, 2006 09:33PM
Motor schmoter.... who cares?

Morten, did you discover what is wrong? If so, what?

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Morten
Morten
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Re: Engine pulling and Camshaft spec
February 20, 2006 09:36PM
"Go out there now and take the cover off."

It's 19:30 and I've got a trip planned tomorrow to get a set of "real screw drivers", as opposed to my carpentry multidriver.

It'll still be there tomorrow.
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Morten
Morten
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Re: What is wrong with it?
February 20, 2006 09:36PM
No not yet... but it's seized.
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Morten
Morten
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Re: Engine pulling and Camshaft spec
February 20, 2006 11:27PM
After some research into camshafts and how they work, I've come up with a couple of questions and am also wondering if I'm on the right track.

106 Lobe seperation means that torque peaks early in the RPM.

Because I have an OHC with mechanical rockers does that mean to rocker ratio is 1:1 ?

It seems confusing to compare camshaft specifications from company to company because there isn't a standarized method of measuring lift.

JVL do you remember what the compression ratio and stroke length is of the hybrid motor as opposed to a stock one ?

When overlap is mentioned, is this a measurement of duration or lift or neither ?

I have looked at some of the UK manufacturers of camshafts (Piper Cams) but they don't offer anything for my motor.

Thanks !


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Morten
Morten
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Re: Engine pulling and Camshaft spec
February 20, 2006 11:28PM
Forgot to add this to my previous post (for online referance) :

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sagsert
Mustafa Samli
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Re: Engine pulling and Camshaft spec
February 21, 2006 03:47AM
Jeeeeeeeeeezussssssssss Morty Morty Morty....

Step by step my friend, step by step. You will get encephalo overloadis. STOP !!!

Remove the damn cover ! Do as the Grumpy Old One says.

I promise, we will never ask you to design your own engine. We are simply holding our collective breath and waiting to see what (if anything) went Kabloooooeeeee in your E-N-G-I-N-E.




Cheers
M.Samli
Phoenix AZ
Gaylant VR4
EVO III GSR (Stolen)


Rallies are no place for traitors
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Morten
Morten
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Location: Vancouver, BC
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1974 Dodge Colt



Re: Engine pulling and Camshaft spec
February 21, 2006 10:13AM
"You will get encephalo overloadis"

Perhaps a side effect of this are the camshaft and valve train dreams I've been having lately, only to wake up in a cold sweat ?

I'll get to cover off this afternoon.

I realize that to have a cam spec'd, ground from a blank, or mine reground is going to have lead time. It's this lead time that I was trying to minimize by getting the information sooner as opposed to later.

Just trying to get all my ducks in a row.

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