BATSLOMAN GIVES NO FUCKS.
aint bashing you at all lol, was giving props for his big brain skills
UPDATE:I'm still not convinced you have massive crankcase pressure, maybe just high blowby.
What are your compression values again? Have you done a cylinder leak down test?
What is the actual crankcase pressure? Its one thing to have higher crankcase gas flow, which is pretty typical if you've upped compression, its another thing entirely to build pressure. Have you put a pressure gauge in the dipstick tube to see what it is?
Plenty of vacuum 22inHg. 24 after blipping the throttle and revs coming downThrow a vacuum gauge on the intake at idle. Let’s see what vacuum you’re making.
That's a negative. Doesnt surprise me with how I've ventilated the crankcase now. Gauge barely moves. Maybe 0.1 to 0.2psi MAXExtend the pressure gauge up to the windshield, tuck it under a wiper, tape it to an angle you can see it and go rip it a few times, I bet under load is where it's building pressure, and likely coming from exhaust guides.
Mustve been what originally fubared the engine with oil consumption. I thought it was rings since one of the cylinders had a big score mark on cyl 4, but it was valve guides all along. So the new valve stem seals mustve held up for those first 3000km. Still odd that the cam and crank seals are leaking. But oh well. Replacing those with OEM honda ones. No more off brand stuffYup, intake guides.
Did you mean 75-100k km and 45-60k miles? 100k miles is 160k km. Would be a bit overkill to do the guides and take the head off every 50k km or so wouldn't it?Guides are a wear and tear item on these engines. I would almost be so bold to say do them every 75-100k miles / 45-60k kilometers if you are a longterm owner/operator of this vehicle.
Meant to say 100k miles or 130k kilometers. Backwards.Did you mean 75-100k km and 45-60k miles? 100k miles is 160k km. Would be a bit overkill to do the guides and take the head off every 50k km or so wouldn't it?
But yeah they're getting replaced. The shop set me on the wrong path by telling me they're okay. Gotta learn to do those precise measurements myself so I'm not dependant on other peoples word
Will do! Going there at the end of august since theyre closed and on vacation now. Do you happen to have any links or sources that state this aswell? Might make it better to explainIts likely the shop thought they WERE good, or at least close enough they could be refinished, unfortunately the side loads on D valves are pretty extreme, just the rocker geometry, lobe lift and valve heights/angles all coming together to create a sensitive system, many machine shops don't realize that they need special attention and should be replaced instead of refinished. Explaining that to them might get you the labor done free and a more reliable place for honda head repairs in the future.
Only personal experience, and word of mouth from several different sources involved in D series head work. Showing them this thread will help. They will be able see see what's been done to diagnose the issue and all the second, third, and 4th opinions matching up.Will do! Going there at the end of august since theyre closed and on vacation now. Do you happen to have any links or sources that state this aswell? Might make it better to explain
Yeah the guy who did the work said he checked it and it must be something else. I explained to him that it only happens after vacuum or engine braking following half or more throttle, even with a disconnected catch can hose to the intake pipe. He also attaches 0 value to the leakdown test as "the oil on top of the piston will seal it and not show the correct leak percentage" even after I stated that I looked into the cylinder and the piston was dry...They don't believe what? That the valve guides might be worn? It's not like you're writing sci-fi novels, it's a mechanical issue, that must have a mechanical resolution.... There's only so many ways you get compression leaks.....
Dude, sidetracked happens to those guys!! Always something interesting going on haha. I feel I'm semi OCD (?), not ADHD, but sometimes... every so often... as an example:Sounds like a few machine shops I've been burned at before😖 and it's why I work with the OCD, ADHD people at the machine shop I use now, their brains just won't let them do half-assed work, it just takes a little longer cause they get easily sidetracked sometimes, lol.