defender 2.25 camshaft specifications?? - Defender Source
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  #1  
Old September 27th, 2016, 07:16 PM
michelle
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michelle
1963 IIA
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defender 2.25 camshaft specifications??

Hi!,
I am rebuilding a 2.25 diesel out of a Series IIA (sorry, it isn't a Defender ....) and the replacement "performance " camshaft marketed by Bearmach is actually a stock Defender 2.5 bump stick.

The problem is, when I got my camshaft, it had no little card with it giving the cam's specifications such as at what degree Before Bottom Dead Centre do the exhaust valves open, and when do they close after TDC, and the same for the intake valves?

I can't degree the camshaft without this knowledge surely this information must be printed somewhere, but I simply cant find it!! (My IIA's manual has a complete cam specs chart printed in it).

If someone can help me, my diesel and I will be eternally grateful...
Thank You,
Mic
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  #2  
Old September 27th, 2016, 09:34 PM
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John B.
1991 Defender 90, 200TDI
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See the attached for the 2.5, from the Defender workshop manual.
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Old September 28th, 2016, 11:59 AM
michelle
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Smile Thank you!!!!

THANK YOU RED 90!!!!!


I tried my semi-local, semi-interested Land Rover dealer, and I even tried calling Bearmach, but they had no idea, nor could remember ever having anyone request the specs before!

Thank You VERY MUCH!!
Mic
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  #4  
Old September 28th, 2016, 12:08 PM
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Jack Walter
1966 109 SW Diesel
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How much difference is there between the cam in the 2.25 versus the 2.5 engine?

And is the same true for the petrol engines as well? Is a 2.5 cam a "performance cam" when installed in a 2.25 engine?
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  #5  
Old September 28th, 2016, 12:22 PM
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John B.
1991 Defender 90, 200TDI
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Quote:
Originally Posted by JackW View Post
How much difference is there between the cam in the 2.25 versus the 2.5 engine?

And is the same true for the petrol engines as well? Is a 2.5 cam a "performance cam" when installed in a 2.25 engine?
I think it may be hard to know. If you read the Defender workshop manual for 1991, it shows the same specs for 2.25P, 2.25D and 2.5D and a longer duration for the 2.5P, all with the same lift. But...the current parts catalogs show the same camshaft for all engines through to the 200TDI, ETC7128.

My guess is that older 2.25s will have the less aggressive cam and adding the newer one may help.

I've attached the 2.5P numbers from the manual, because, I suspect, they are actually the correct ones for this cam.
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  #6  
Old September 28th, 2016, 12:26 PM
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Even more confusing... The Series 3 manual shows a longer duration for the 2.25P than both the ones above.
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  #7  
Old September 28th, 2016, 06:20 PM
michelle
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Hi again!
When I got home today I compared the specs posted here earlier with my old IIA numbers- oh, oh--- they're are the same!
I was going to post that maybe the 2.5 gasoline engine is the specs I needed, but you beat me to it- I will degree the camshaft Friday (my day off!!!!!) and let you know what I find.
Thank You again!
mic
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