AP1 Retainer Replacement...Valves? Springs?
03-19-2024, 10:55 AM
#1
AP1 Retainer Replacement...Valves? Springs?
Hello, new owner of an AP1 here. I've read and heard many nightmares about the retainers dropping valves so I plan to replace them. I know it's suggested to get the ap2 retainers, but is there any benefit to going with aftermarket products? While I am there I was also wondering if getting "better" valves and springs would yield any positive effects. As of right now my goal getting the car as healthy as possible. Thanks.
03-19-2024, 12:00 PM
#2
You dont need to remove head to change retainers 
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windhund116 (03-19-2024)
03-19-2024, 02:24 PM
#3
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No, don't go aftermarket. That would be a big downgrade unless you have a very specific goal in mind.
The factory parts for this car are virtually always the best ones available anywhere, for any price.
If you had oil smoke/burning, you may benefit from a set of factory valve seals.
Otherwise, just do the AP2 retainers and cotters and leave the rest of it alone.
The factory parts for this car are virtually always the best ones available anywhere, for any price.
If you had oil smoke/burning, you may benefit from a set of factory valve seals.
Otherwise, just do the AP2 retainers and cotters and leave the rest of it alone.
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03-19-2024, 02:32 PM
#4
No, don't go aftermarket. That would be a big downgrade unless you have a very specific goal in mind.
The factory parts for this car are virtually always the best ones available anywhere, for any price.
If you had oil smoke/burning, you may benefit from a set of factory valve seals.
Otherwise, just do the AP2 retainers and cotters and leave the rest of it alone.
The factory parts for this car are virtually always the best ones available anywhere, for any price.
If you had oil smoke/burning, you may benefit from a set of factory valve seals.
Otherwise, just do the AP2 retainers and cotters and leave the rest of it alone.
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noodels (03-19-2024),
windhund116 (03-19-2024)
03-19-2024, 04:38 PM
#5
do a spec valve adjustment. Look for cracked retainers before changing the retainers/keepers to AP2(intake side) just because. You can get a good read on a cracked retainer as it will have a more sunken appearance- there are several pictures on the forum here for more perspective.
darcy
darcy
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windhund116 (03-19-2024)
03-19-2024, 05:44 PM
#6
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do a spec valve adjustment. Look for cracked retainers before changing the retainers/keepers to AP2(intake side) just because. You can get a good read on a cracked retainer as it will have a more sunken appearance- there are several pictures on the forum here for more perspective.
darcy
darcy
The AP1 retainers seem to be on the ragged edge of how light you can make a reliable retainer.
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windhund116 (03-19-2024)
03-20-2024, 05:38 AM
#7
Preventive maintenance is key for any machinery.
OEM AP2 retainers -- no "improved and better" aftermarket. While you're under there do a valve adjustment of all valves. These tighten in use so Max clearance is recommended. Your current clearance will be a key. If they're quiet they're probably too tight.
If you can put the car on a low lift or jack-stands, your back will thank you.
-- Chuck
OEM AP2 retainers -- no "improved and better" aftermarket. While you're under there do a valve adjustment of all valves. These tighten in use so Max clearance is recommended. Your current clearance will be a key. If they're quiet they're probably too tight.
If you can put the car on a low lift or jack-stands, your back will thank you.
-- Chuck
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CouchHobo (03-20-2024)
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03-20-2024, 07:37 AM
#8
You are correct. With AP1 retainers being a common failure point I have not interest in keeping the original retainers. I am also planning on dropping the pan to check and potentially replace the oil jet bolts as well. These engines are becoming harder and harder to replace Since I managed to get one with 59k I am planning on keeping it running as long as possible.
03-20-2024, 07:39 AM
#9
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What year is your AP1?
03-20-2024, 08:06 AM
#10
Registered User
You are correct. With AP1 retainers being a common failure point I have not interest in keeping the original retainers. I am also planning on dropping the pan to check and potentially replace the oil jet bolts as well. These engines are becoming harder and harder to replace Since I managed to get one with 59k I am planning on keeping it running as long as possible.