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How to tell if engine has cam 

 

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 Post subject: How to tell if engine has cam
Posted: Tue Jun 14, 2005 10:47 pm 
Getting Side Ways
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Hi

I got my EB GL about a month ago, and it goes so much harder than my previous EB Fairmont. When the tacho gets over 2000rpm the engine kicks in and revs hard through to 5000rpm. I suspect it has a cam in it.

Either that or the Fairmont was just useless.

I am changing the Rocker Cover gasket tomorrow afternoon. Is there any way of identifying if a cam has been installed previously?

Any suggestions would be appreciated.

Regards
BenJ

 

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Posted: Tue Jun 14, 2005 11:02 pm 
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If it starts and runs it has a cam installed :)

 

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 Post subject: Re: How to tell if engine has cam
Posted: Tue Jun 14, 2005 11:05 pm 
Getting Side Ways
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BenJ wrote:
I suspect it has a cam in it.


Quote:
Is there any way of identifying if a cam has been installed previously?


Well... If the engine goes then that's a pretty good sign it has a cam in it, it is a fairly important part of the engine ;)

...Sorry, couldn't resist :P

edit: dammit, I mull over my posts too long. kempster beat me to it :P

Seriously though, as I understand it, a cam is only really good when installed in conjunction with other mods (intake, exhaust etc). If the engine is otherwise stock then I'd say it more than likely wouldn't have a cam in it. If, on the other hand, there's evidence of other modifications being performed then it may be a possibility.

 

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Posted: Tue Jun 14, 2005 11:37 pm 
Getting Side Ways
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Ride: EB1 Fairmont Ghia T5 Wagon

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Well I left myself wide open for that one.

The exhaust on the car when I got it had the rear muffler removed and the pipe looked bigger than the one I used to have on the fairmont.

I have a Red Back 2.5" cat back exhaust on it now. It used to be on the Fairmont but oddly they both sound different too.

The previous owner has added a thermo fan conversion (aftermarket) not ef/el.

Question still stands. Is there a way to identify if there is a 'performance' cam fitted to an existing engine, while the rocker cover is off?

BenJ

 

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Posted: Tue Jun 14, 2005 11:59 pm 
Getting Side Ways
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It may have some marks or numbers identifying who made or ground it but other than that I can't think of any other way to determine if it's not stock short of having it measured.

GL you say? Is it multi-point or central fuel injected? 3.8, 3.9 or 4.0L?

 

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Posted: Wed Jun 15, 2005 12:08 am 
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does it idle lumpier?

its usually a way to tell as wade 1004 is quite common and lumpy.

 

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Posted: Wed Jun 15, 2005 12:51 am 
Getting Side Ways
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Sorry, it's a 4.0L multipoint engine Non Smartlock car

It looks like I might have to get it dynoed to see if it is not stock.

Regards
BenJ

 

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Posted: Wed Jun 15, 2005 1:01 am 
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the ONLY 100% way to tell if your car has a cam is to take teh cam out and get it put on a machien that can read teh cam lobes
then compare those readings to the factory cam specs

sound and performance are not the answer

ok if the car does a 13 sec 1/4 yes it has a cam LOL

 

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Posted: Wed Jun 15, 2005 1:04 am 
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Disco Frank wrote:
the ONLY 100% way to tell if your car has a cam is to take teh cam out and get it put on a machien that can read teh cam lobes
then compare those readings to the factory cam specs

sound and performance are not the answer

ok if the car does a 13 sec 1/4 yes it has a cam LOL


haha i duno, those ebs are pretty quick out of the box!

 

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Posted: Wed Jun 15, 2005 1:08 am 
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Disco Frank wrote:
ok if the car does a 13 sec 1/4 yes it has a cam LOL
m8, if a cam can make a car do 13 second quarter mile times, i think it'd be f**k obvious without needing to take it to the strip! lol

 

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