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valve replacement

779 Views 7 Replies 3 Participants Last post by  H22AllMotor
anyone know or have any pics of how to replace valves thanks
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If you need to replace a valve, you will have to pull the cylinder head off the engine. While it is off, you should have a head shop clean up the whole head and fix the valve for you...they will have to grind the seat for the new valve anyway. The cost of fixing the one valve will not be much less than a full head rebuild anyway..might as well clean it all up and get porting or oversized valves done as well if you have some extra $.
Head has to be removed. Starting with removing timing belt, camshaft holders, camshafts, then loosen the head bolts by the sequence. remove head, place it on a bench get a valve spring compressor from honda, compress the spring, remove the retainer holder, then retainer, then slowly release the spring, remove that, then valves should fall thur. Then take it to a machine shop to have the seats, and valve margins resurfaced, and head cleaned, and dont forget to buy new valve seals. Then reassembly is reverse of the removal prodcedure. You would be better off getting a Prelude service manual. so then you have the specs for loosening the bolts, and torquing the bolts, etc..

My rebuild cost me 125 bucks, that included grinding the seats, valves, and steam clean the head, head resurfaced, by the thickness of a paper.

Having a shop do this would be very costly, pretty much close to 700 dollars.
$700 bucks....that's a little on the heavy side unless you are getting the Honda dealer to do it. If you pull the head yourself and take it to the head shop it should not cost that much. I took my head to a local import performance machine shop and they did the full resurface, valve grind, valve seats, stem seals, everything for $250 plus parts ( another $200 ). And that's in Canadian $ (about $300 US ).
H22AllMotor said:
$700 bucks....that's a little on the heavy side unless you are getting the Honda dealer to do it. If you pull the head yourself and take it to the head shop it should not cost that much. I took my head to a local import performance machine shop and they did the full resurface, valve grind, valve seats, stem seals, everything for $250 plus parts ( another $200 ). And that's in Canadian $ (about $300 US ).
Read my post again.... 125 for me to do it my self...

Yes 700 is high, that is for somebody to do it correctly. usually it runs about 450-700 bucks.. depending on what is to be done.
And my point was that while the head was off why do a half-assed job to fix one or two valves when you can go through the whole head and get everything perfect and equal. For the extra few bucks it is well worth it to have an entirely new head with equal valve seating for more equal compression and power across the 4 cylinders.
H22AllMotor said:
And my point was that while the head was off why do a half-assed job to fix one or two valves when you can go through the whole head and get everything perfect and equal. For the extra few bucks it is well worth it to have an entirely new head with equal valve seating for more equal compression and power across the 4 cylinders.
and what point is this remark exactly on?

Why in the world would somebody just get ONE valve fixed while they could get all 16 fixed at the same time?? I got all mine done at the same time!:rolleyes:
The original thread asked about replacing valves......not rebuilding the cylinder head.
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