1982 gs750 question

[django89]

Im going to tearing my egine down to replace gaskets which are leaking figured while i was in there i was going to replace rings and rehone. what size hone do i need? also what ele should i do while im there? thanks

[tkent02]

Replace the valve stem seals. Are the rings worn out?

[django89]

Smokes alittle when cold for about 30 secs but fig do it cuz theres about 30k on it

[tkent02]

30K is nothing. The valve stem seals re old and hard, they tend to leak while it's parked. When you start it up there's smoke.

Test the compression.

[django89]

Yea when its cold

[django89]

what size hone am i going to need

[Dj66]

I could be wrong,but i think these guys are trying to tell you that you probably don't need one. If i were you I'd get a compression tester and make sure. After checking your valve clearances of course. Hones are usually a spring loaded stone arrangment so the answer to your question would be "small" since a single hone can be used for a range of bore sizes.

[Steve]

what size hone am i going to need

There is no hone necessary to replace the valve seals.

.

[Guest]

Valves seals are the problem you are describing.
If you have a base and head gasket leak then I would go ahead and do the rings and hone.
I use flex hones to hone my cylinder

http://www.grainger.com/category/flexible-cylinder-hones/polishing/abrasives/ecatalog/N-hqi?perPage=16&requestedPage=2#nav=%2Fcategory%2Fflexible-cylinder-hones%2Fpolishing%2Fabrasives%2Fecatalog%2FN-hqiZ1z0h4dfZ1z0nrw1%3F_%3D1389032435646%26perPage%3D16

I think this may be the right diameter.

[Dj66]

Yeah,there's more than one kind of hone.If he's going down to the base gasket he should probably mic the bores to decide if a re-ring will do, correct?

[Steve]

Yeah,there's more than one kind of hone.If he's going down to the base gasket he should probably mic the bores to decide if a re-ring will do, correct?

Unless the 30,000 miles were put on in 1/4 mile segments, he shouldn't even need to re-hone the bores.

.

[tkent02]

Some folks like to buy new rings.

Some folks like to run them another 100,000 miles first.

Das macht nichts.

[Steve]

Das macht nichts.

My feelings, exactly.

.

[django89]

I understand what you guys r saying completely and yea I have a base leak and a head seap and the valve seals was just brought up now so a new check on my list but I figured while I had the head off I would do rings hone and a new timing chain while i had it apart until then later have to rip it apart again later and do rings and t/chain and have to do gaskets again :-/ I dunno my first real build looking to save some time and busted knuckles oh BTW this is my goal

[django89]

http://www.pipeburn.com/home/2011/6/30/evolution-motorsports-1976-honda-cb750.html