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Old 02-04-2021, 01:12 PM   #1
tog244
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Default b230f valve cover studs

I swapped cams and when I was retightening the valve cover 2 of the 10 studs sheared off so I went ahead and bought a full replacement. Taking them out shouldn't be that hard, I assume I can just use channel locks or vice grips and twist them out. How do I go about threading the new ones back in? Do I have to find two nuts and tighten both of them on and use that or can I tighten the cap nut on and use that to tighten the stud? Lastly, does anyone know the torque spec for the studs?
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Old 02-04-2021, 01:30 PM   #2
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You'll want to use 2x nuts and "double nut" the stud in. Don't smash it it, just run it in until the threads bottom out.
Torque spec is probably ~6 lb-ft
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Old 02-04-2021, 01:59 PM   #3
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sounds good, thanks
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Old 02-04-2021, 02:21 PM   #4
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did you adjust your valves?
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Old 02-04-2021, 08:47 PM   #5
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no, what for
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Old 02-04-2021, 10:39 PM   #6
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Originally Posted by tog244 View Post
no, what for
When you swap a cam there is a chance that your valve clearance adjustments wouldn't be in spec anymore. The valve clearances on a B230f is adjusted using shims (the metal discs that sit over the valves). Too big or too small and your engine will be noisy, the valve duration and lift will be off, and if it is bad enough you will prematurely wear down the cam.

You should check the valve clearances with a feeler gauge before buttoning everything up. If one is out of spec you can either get a rental kit of shims from IPD or do some math to determine what shims you need by measuring the existing ones with some calipers.

Sometimes you get lucky and you don't have to touch the shims when moving between OEM cams. You should still check them though.
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Old 02-05-2021, 05:11 AM   #7
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Even when I swapped from a M cam to a W cam I had to adjust valves

Last edited by Jack; 02-05-2021 at 05:38 AM..
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Old 02-05-2021, 11:29 AM   #8
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I was told that i didnt need to as i went from an M to an H which was an oem one. how do i know if i need to or not
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Old 02-05-2021, 11:37 AM   #9
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I was told that i didnt need to as i went from an M to an H which was an oem one. how do i know if i need to or not
Run it till it burns a valve and replace / rebuild the cylinder head.





















































































Then shim that.
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Old 02-05-2021, 01:36 PM   #10
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I was told that i didnt need to as i went from an M to an H which was an oem one. how do i know if i need to or not
Did they also tell you it makes 300hp?
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Old 02-05-2021, 01:46 PM   #11
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Quote:
Originally Posted by tog244 View Post
I was told that i didnt need to as i went from an M to an H which was an oem one. how do i know if i need to or not
If the cam is in the car check the valve clearances with a feeler gauge. The procedure should be described in either the Volvo green books or the Haynes manual.

Here are some videos that cover the topic.

https://youtu.be/fxE2Rs4acEI?t=381
https://www.youtube.com/watch?v=OhS9RCGjI_M
https://www.youtube.com/watch?v=xTGn6NzzHq0

Even if the base circle on the cam is the exact same on every lobe between the M and the H there is no guarantee that the clearances were correctly adjusted in the first place.

Last edited by spock345; 02-05-2021 at 01:51 PM..
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Old 02-05-2021, 01:48 PM   #12
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Did they also tell you it makes 300hp?
Stop the steal!
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Old 02-05-2021, 03:54 PM   #13
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Originally Posted by spock345 View Post
If the cam is in the car check the valve clearances with a feeler gauge. The procedure should be described in either the Volvo green books or the Haynes manual.

Here are some videos that cover the topic.

https://youtu.be/fxE2Rs4acEI?t=381
https://www.youtube.com/watch?v=OhS9RCGjI_M
https://www.youtube.com/watch?v=xTGn6NzzHq0

Even if the base circle on the cam is the exact same on every lobe between the M and the H there is no guarantee that the clearances were correctly adjusted in the first place.
ill check it out, thanks man
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Old 02-05-2021, 04:29 PM   #14
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get yourself a bently manual and read how to do these things before you mess up more stuff

that also includes timing the car etc
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Old 02-06-2021, 06:55 PM   #15
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im working on getting them, im just a 16 yr old working on my first car. i assumed i could get by with watching youtube videos to learn
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Old 02-06-2021, 09:10 PM   #16
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im working on getting them, im just a 16 yr old working on my first car. i assumed i could get by with watching youtube videos to learn
Youtube videos only get you so far. A manual specific to your model car is essential for information about that model in particular.

In general the hierarchy of Volvo 240 manuals is as follows

1. Volvo Service Manuals (Green books)
2. The Bentley Manual (not the car company, the publisher of the books)
3. Haynes Manual (often frustrating and vague)

You can find the green books in pdf form scattered about the internet. There were once sites that hosted them but those went down due to legal issues, or so I am told.
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Old 02-06-2021, 10:12 PM   #17
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yeah thats what ive learned, and ill look into buying some
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Old 02-07-2021, 12:11 PM   #18
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You can find the green books in pdf form scattered about the internet. There were once sites that hosted them but those went down due to legal issues, or so I am told.
Good suggestion.
There are still some sites around hosting lots of stuff like:

https://ozvolvo.org/archive/
http://240.se/
http://v8volvo.se/
https://www.gcp.se/en/catalogues/ for all parts catalogues you will ever need.

To name a few.
I use Chrome auto translate for the two Swedish ones.
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Old 02-07-2021, 09:31 PM   #19
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One of the nice things about the parts catalogs is that you get to see how assemblies fit together. You can see how a strut is put together or how the wheel bearing parts assemble, for example. I recommend a print copy of the wiring diagram green book for your year car. You can find them on ebay. Having the factory diagram book is a big help in understanding what is working in circuits like the power windows. Usually about 25$ or so.
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