TravisCadello

Can it be done or only a machine shop on a D16z6?

iwanttokillgod

if you have the tools and know how u can do it

Murk 'EM

what do you mean by valve job? you want them recut?

TravisCadello

no replacing bent valves? is it a hard job and what tools are needed?

Murk 'EM

replacing the valves you can do your self what youll need is a valve spring compressor and a positive valve seal remover.. your gonna need to get new valve seals and id check the tension and install height of the springs to make sure there still good
now when your taking the vavles out and one is bent to where it cant be pulled out easy dont pull it out .. now you shouldent have a valve like that cause they usually bend at the head not the stem but iv seen em like that so just becarfule when your taking them out.. your gonna also wanna get a tube of this blue **** i forgot what its called but its for valve seat placement its to see if the valve face makes contact with the seat jsut to be sure your gonna have a full seal on the valve seat and face

TravisCadello

I might just get a machine shop to do it. cause im looking on youtube and it dont look to easy. and also would i have to readjust the valves and all that?

Murk 'EM

you dont HAVE to readjust them its recomended but the rockers are its own seprate assembly.. honstly those 2 tools will run you maybe $75 and a shop will charge you close to $200 if not more
its really one of the easiest things you can overhaul on an OHC motor get a haynes manual and it tells you step by step how to do it

TravisCadello

Ok Thats Good, Ill take the head off tommarow and check it out and read a little more about this. but i might end up doing it my self so that i can replace all of my valve stem seal and all that stuff.

Only thing im worried about what if i do all of it myself and start it up and one of the valves fall into the piston lol. thats what scares me. i dont understand how the retainer holds the valve.

lollypopking

To put it simply, a proper valve job is basically composed of you disassembling the valve train and assembling it again with replacement parts for anything that wears or fatigues beyond specification due to mileage. However, if you have bent valves, like I did recently on another car, the head needs to be inspected for leaks, warpage, proper valve seating, as well as other things I don' remember.

Bent valves is technically damage to the head, or at least that is how you need to treat it. As good as your eyes may be, it doesn't match up against a good machine shops proper inspection equipment or the eyes of an experienced engine builder. I would recommend at least having the head inspected by a machine shop, and possibly have it pressure tested. If you don't good engine work experience already, I would pass on this job and give it to the pros. Good luck with it!

k94cvtec

the valves have a machined groove in them near the top and when you put the keepers in and release the tension the keepers hold the retainer on top of the spring thats how they work

TravisCadello

thx, but their isn't any warpage

TravisCadello

Ok, If you guys had the spare $100 would you put the valves in yourself with a rent a tool from autozone or just pay a machine shop for it to be good forsure?

Unseen Racer

my friend got his done for about $40

TravisCadello

40 bux for them to put them back in is not bad at all man, imma do that. is their any seals or gaskets that it needs?

TravisCadello

Ok, so i have my D15B7 laying right next to me right now. I'm gunna take all the valves outa it and take my V-Tec head to the machine shop tomorrow and have them install them for me.

What else would be good to be done while the head is their? for under 150

Dangousity

I recently just bent 8 valves in my head when the timing belt exploded. At first I did a leak down fluid test, and it seemed nearly fine, removed the valves put them a collet and went to turn them, and found that they were bad. (hard to tell without a lathe, or a grinding machine) Priced a new set of valves at 270$, springs were weak also, theres another 100$. Bought a Reman'd head, took the Rocker assembly and junk off, Put my old head stuff on, Set the valve lash and away I went. It may not be as good as the job I would have done if I invested the time and money of doing the work myself, but it runs has great compression, and thats what I needed atm. I will get a better head later if need be.

Dangousity

btw I quoted 400$ at the local machine shop, I passed and decided to go around it heh

TravisCadello

why did u get a reman head? did it mess it up also?

MonkeyMagic

correct answer


if you don't have the tools to check everything, don't do it.

personally, i'll assemble.. or get head all day

TravisCadello

is it possible i need a new head? if so will the machine shop be able to repair it or not?

civic_driver

Aren't you reading? It was already said that if there are bent valves that the head is most likely damaged.

TravisCadello

and if it is then can it be fixed or no?

MonkeyMagic

nything can be fixed, might be cheaper to get a new one.

but in your case, the head is most likely NOT damaged.
non-vtec motors tend to throw time and just twist valve stems and stop.

should be able to pull them out, pop some new ones in and run

the retainer holds the valve cause it has two little notched keys... the notches on the keys or "keepers" fit into the end of the valve stem. the retainer fits up around the keepers, like shoving them down in a hole. so they can't separate away from the valve, there by locking the valve, keeper, and retainer together.

TravisCadello

this is a V-Tec motor by the way. Yea, imma have the machine shop put them in and pressure test it tommarow. what about a port n polish. is that worth doing and how much?

MonkeyMagic

port and polish... no. not enough displacement/compression/cam to flow any more air than the factory straw-sized ports can already supply.

get her runnin and the hell with it