Type R Club of America

aw614 wrote: ↑Tue Mar 14, 2023 3:22 pm Which valve spring tool did you buy?

When I replaced my retainers my friend was using a combination of the hpt valve spring compressor and the lisle 36050 tool.

Dave7CDMTYPER wrote: ↑Sun Mar 19, 2023 8:40 pm My idea is to fully disassemble the cyl head to get it ready for machine work. Otherwise I probably wouldn't need to do full disassemble. I feel like I may have the machine shop install the new valve guides, seems like it takes a lot of force to do that. Anyway, have these types of things on my mind right now about the engine.

DC231 wrote: ↑Mon Mar 20, 2023 4:30 pm

Dave7CDMTYPER wrote: ↑Sun Mar 19, 2023 8:40 pm My idea is to fully disassemble the cyl head to get it ready for machine work. Otherwise I probably wouldn't need to do full disassemble. I feel like I may have the machine shop install the new valve guides, seems like it takes a lot of force to do that. Anyway, have these types of things on my mind right now about the engine.

You're ready for machine work. Although, you may not need any machine work besides a valve job. The shop that does the valve job will tell you if they need to replace the guides. Most likely they won't need to. I've sent 4 cylinder heads to 4piston racing over the past few years and they've never recommended for the guides to be replaced and over the past 10+ years I've had dozens of cylinder heads rebuilt by Oscar of orange park cylinder head and he's only ever replaced broken guides from bent valves..

Dave7CDMTYPER wrote: ↑Mon Mar 20, 2023 6:52 pm

Ok awesome! Things are starting to make more sense. I watched a video of a guy who removed and replaced valve guides, that was some seriously impressive machine work (imo). If there's no benefit then I won't get it done, but new bronze valve guides would be pretty niiice.

I've been doing some online research lately. I get ocd and just read stuff and watch videos. Last night I learned about how valve springs have different ratings for lbs of pressure and mm for movement or w/e. And cams have the mm rating too, so that's how cams and springs can be matched properly (among other things I don't know yet). And I'm having a challenging time deciding what valve train components I will use. I will at least do ITR springs. I think all b series have the same valves. I'd love to make the engine a little more sporty, but then it seems like aftermarket valve train isn't really designed for higher mileage. And plus I have to consider tuning, carb, etc.

DC231 wrote: ↑Mon Mar 20, 2023 8:57 pm Bronze valve guides are beneficial in turbo setups where they dissipate heat faster but they also wear out faster. That stuff is for high maintenance applications where parts are being inspected frequently not for something you want long term reliability.

I believe it's Toda who has the beehive type valve spring that's wider on the bottom and thinner at the top to allow very high lift. There are lots of options for valve spring rates.

Luke from 4piston has told me personally that he has seen Ferrea valve train last over 100k miles with the proper maintenance. I've never went that distance personally but I believe 100% it can be done with the proper maintenance.