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Valve Guide Tools And Method Of Replacement

MJTru

By MJTru,
in Engines & Forced Induction

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MJTru

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Hi guys im wondering how most guys replace valve guides. I can take them out but i just dont know how to install them. I have a 50 ton press and can press them out but i cant find a way to angle the head to press it out unless i see my self making a jig to hold the head. Im just wondering how or what methods the machinist use to replace valve guides. I looked it up on you tube and all. But cant seem to find any on a rb26. I see old chevy heads and so on. Is there a specific tool i can buy to do the job. ??

I did make a tool and with brut force i hammered them out worked great. Oh that was on a junk head as a test. But i just cant find a specific process used on rb26 heads.

Thanks in advance.

MJTru Mentor

MJTru

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Dont just press the guides in. Heat the head and freeze the guides. Have repaired a head with galling from the previous shop installing the guides like a neanderthal

Would have to watch how hot the head gets or seats could droo out. This is a very touchy decision. Lots of ways of doing it.from what i see.
  • 3 weeks later...
MJTru Mentor

MJTru

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Sorry for all late reply. I was planning on doing the guides myself on a junker before i do it on my new heads. I just got 5 sets of bc guides. I also located a very good tool that removes and installs the guides.

One question. Do anyone know or heard of using seal lock/fluid weld on the guides like a locktite to keep them in. I know its a tolerance fit thing and freezing them before installing them is a good idea as well. Just was reading up on some old article, and came across the fluid weld stuff. Oh and i am planning on doing all my valve work myself its always worked out for me, just my first time having a failed guide. Hate this. I hope this is the last hump in the rb line up. I tight for years to master the oil issues, did it and over looked the guides. Damn me. With fully built motor is there any other weak point i may have mist.

Thanks in advance.

MJTru Mentor

MJTru

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Best to get a junk head and do some practice runs before you screw up your good one. Are you planning on reaming the guides, grinding the valves and cutting the seats yourself too?

When you say reaming the valve you mean kind of like drilling them out cutting the side wall area down so that they come out easier. Rather than pressing them out and scolding up the aluminum.???

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