REBUILDING MY F20C
#12
I won't go into long explanations because the search button can tell you all you need to know. These engines do not rebuild well, I can't tell you how many threads I have seen of guys just like you, who take an engine to the "best Honda motor shop" and just ends in failure. I would take a use motor that I knew was well maintained over a fresh rebuilt. I would most certainly take a new bottom end over ANY rebuild regardless who did it (not knocking any of you couple guy in the U.S. who can actually rebuild these things).
At the end of the day the best explanation I can give is that Honda just did a damn good job on these engines!
#13
Moderator
Yes. The amount of aftermarket shortcomings for this engine is through the roof.
Just last week I dealt with a guy with a built head. The valves will not hold there shape and hardness, and the valves are constantly going out of adjustment. This is one of the top valve makers according to NOTHING BUT RUMOR.
I wish you well....as of now, there is not one single engine part that I have personally dealt with in existence that can beat oem reliabily and longevity.
Hopefully an aftermarket engine internals thread winners will emerge someday.
Just last week I dealt with a guy with a built head. The valves will not hold there shape and hardness, and the valves are constantly going out of adjustment. This is one of the top valve makers according to NOTHING BUT RUMOR.
I wish you well....as of now, there is not one single engine part that I have personally dealt with in existence that can beat oem reliabily and longevity.
Hopefully an aftermarket engine internals thread winners will emerge someday.
#14
Banned
Billman is right there.. There are a lot of marginal parts out there, there are also a lot of oem parts that could use improvement.
Valves especially.. I am a huge fan of OEM valves, typically the only time we recommend a change is for a turbo motor over 800hp
I dont like stock ap2 rods.. Seen one too many come out of the block at high rpm.
I don't like stock valve springs. An extra 15-20 lbs on the seat helps a lot.
Stock pistons are awesome. 06+ pistons rigs are awesome. Pretty much everything else is awesome. The main reason we sleeve blocks and use wiseco pistons is to fix a screwed up block or to lower compression.
Valves especially.. I am a huge fan of OEM valves, typically the only time we recommend a change is for a turbo motor over 800hp
I dont like stock ap2 rods.. Seen one too many come out of the block at high rpm.
I don't like stock valve springs. An extra 15-20 lbs on the seat helps a lot.
Stock pistons are awesome. 06+ pistons rigs are awesome. Pretty much everything else is awesome. The main reason we sleeve blocks and use wiseco pistons is to fix a screwed up block or to lower compression.
#15
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Join Date: Feb 2015
Location: Louisville, KY
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#16
Yes. The amount of aftermarket shortcomings for this engine is through the roof.
Just last week I dealt with a guy with a built head. The valves will not hold there shape and hardness, and the valves are constantly going out of adjustment. This is one of the top valve makers according to NOTHING BUT RUMOR.
I wish you well....as of now, there is not one single engine part that I have personally dealt with in existence that can beat oem reliabily and longevity.
Hopefully an aftermarket engine internals thread winners will emerge someday.
Just last week I dealt with a guy with a built head. The valves will not hold there shape and hardness, and the valves are constantly going out of adjustment. This is one of the top valve makers according to NOTHING BUT RUMOR.
I wish you well....as of now, there is not one single engine part that I have personally dealt with in existence that can beat oem reliabily and longevity.
Hopefully an aftermarket engine internals thread winners will emerge someday.
#17
With what your describing I think your best bet is to find a used engine that seems well maintained (you could do used bottom end, but whole engines seem more plentiful). If you can't go larger than 2.0 L then a new block isn't an option as all you can get is an 08+ or I would recommend that route with your budget. If you damaged the cylinder walls I would just scrap the block.
#19
I don't think it's actually the parts that are the issue for reliability (theres many high quality aftermarket parts, and of course oem is always really good too, if not the best quality). Imo it's the actual rebuild process. I too have known many people that had their engines rebuilt by very reputable rebuilders, only to have a spun bearing, rod knock, seized engine or blown motor a couple weeks, months or a few years later out of nowhere and after they thought they had a perfect running engine (obviously short of the 200-300k miles oem engines are getting). Nothing will beat a brand new crate engine from and built by Honda. It will be built with precision, by highly experienced people that have built hundreds of them and/or by precision robots.
If I were you, I would just buy a brand spanking new fresh engine from Honda. Maybe an F22 block if you want more torque. Then sell off your current broken engine as parts.
If I were you, I would just buy a brand spanking new fresh engine from Honda. Maybe an F22 block if you want more torque. Then sell off your current broken engine as parts.