Valve Retainer Swap
Exactly, I was planning on all day...going to adjust valves as well. But first I am going to stuff towels in every little hole...since I seem to have a problem with losing small parts.
After doing this myself, here is my advice.
- Take your time.
- Pay attention to torque numbers when you are tightening everything back up.
- Take extra time to mastering the feeler gauge
- Take the extra time to get your gaps correct and consistent
- Have someone there to help you (especially if you do not buy the special tool on this guide)
- Take your time.
--Matt
Originally Posted by starrman' timestamp='1347025138' post='21994757
Exactly, I was planning on all day...going to adjust valves as well. But first I am going to stuff towels in every little hole...since I seem to have a problem with losing small parts. 

After doing this myself, here is my advice.
- Take your time.
- Pay attention to torque numbers when you are tightening everything back up.
- Take extra time to mastering the feeler gauge
- Take the extra time to get your gaps correct and consistent
- Have someone there to help you (especially if you do not buy the special tool on this guide)
- Take your time.
--Matt
Matt, thanks! that is a great link. I do have the special tool and have done valve adjustments before on ohc cars...but it has been quite some time. I never really get in a hurry when doing things to my car...if I get it done today great, if not...there is always tomorrow! I think I got this thought process from watching my dad years ago...the car parts stores were not open on Sunday and closed Saturdays at noon...plus you had to go to 4 or5 to find what you wanted...wow have things changed. Thanks again!
Will be doing this job over the next couple of days...looks like there are two ways to get to the retainers...remove cams or not remove cams. Looks like it would be easier to remove the cams as far as getting to the retainers..but if I don't remove the cams...do I just loosen the adjustment nut and roll the rocker back out of the way???? Will it really move that far?
I just wanted to add 1 thing that was not mentioned here yet.
A lot of people seem to think over rev is bouncing off the limiter. The limiter is there to make sure you maintin a safe rpm for the engine. Of course bouncing off it for extended periods of time probably will cause damage. But its there for a reason.
Mechanical over rev is the type that typically damages ap1 retainers. An example of mechanical over rev is if you downshift from 5th to 2nd and the rpms spike too fast for the limiter to control and the wheels mechanically spin the motor over the safe limit.
I have not removed cams on the f20c before but from what i hear its fairly easy and doesnt mess with timing. If you have the time just take them out and have more room!
Good luck. Also have fun, i know i do working on my car.
A lot of people seem to think over rev is bouncing off the limiter. The limiter is there to make sure you maintin a safe rpm for the engine. Of course bouncing off it for extended periods of time probably will cause damage. But its there for a reason.
Mechanical over rev is the type that typically damages ap1 retainers. An example of mechanical over rev is if you downshift from 5th to 2nd and the rpms spike too fast for the limiter to control and the wheels mechanically spin the motor over the safe limit.
I have not removed cams on the f20c before but from what i hear its fairly easy and doesnt mess with timing. If you have the time just take them out and have more room!
Good luck. Also have fun, i know i do working on my car.
Incorrect. Cams MUST come out to do the retainer replacement.
Once cams and upper caps are out, rockers can be swung straight up. OR... the entire lower rocker assembly can be lifted out as one piece for ALOT more clearance and ease of the job overall. The lower assembly is already unbolted and ready for removal once the cams are out.
Loosen all caps slowly and evenly. You do not need to touch the valve adjustment nuts.
The valve clearance is not affected by this job, unless you replace cams with different ones or mix up the rockers.
Even though the valve clearance will not change, now is the time to check and adjust. You would be crazy not to as poorly adjusted valves will make noise, make the car run like crap, cause misfires, or destroy the valves themselves and possibly the cylinder head (burning due to small clearance)








