@5:14 - really, either is correct - the TDC you want is at the end of the compression stroke and the beginning of the combustion stroke. The TDC you DON'T want is between the exhaust and intake strokes. Typically, I rotate the engine till the intake valve closes then continue to rotate the engine as I feel for TDC with a soda straw (hard to break and lose in the engine) on top of the piston (through the spark plug hole).
Hi Jeff! Thanks for the video! Never hit the valve cover with a hammer or mallet! Always try some finesse while trying to pry it of! Ether tapped with 1 x 4 or take the exhaust cover off to have room to pry it it off! Also, don’t run the engine more than a few minutes with the water running thru the pump.
Great tips! I was not going to reuse the water pump. Correct! as long as you only run it for 30 seconds or so without water, no pump damage should occur
Jeff, thanks for the video. I would not hammer it off. The rocker arm shaft pins are held in place by the valve cover, the side you dented. Would not run the water pump without water. The other stuff was good.
Never run the engine without water through the pump! Never hip valve cover with a hammer or mallet! You have to use some finesse to pry the cover of! If you take of the exhaust cover, you will have room to pry it off! Other than that nice video!
It is not said, but the need to put the OHC cover on top is to avoid losing all the engine oil. Speaking of this valve cover, nobody says there is oil behind!
Guys I lost the nut to the adjusment screw.. I wanted to buy a new one but can't find it anywhere, the only thing that comes up is the rocker arm without the screw and nut, do anyone know how and where to get new ones, I'll apreciate any help
The .006 and .008 are thousanths of an inch and the .15 and .20 are millimeters. They are the same specs. There are 25.4 mm to the inch, so .006 inches X 25.4 mm/inch = .15 mm.
Broken exhaust rocker is a relatively common problem with GCV 160/190s. Don't replace that rocker without checking out my fix for valve guide contact. Otherwise, you might be replacing it again. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zZz0MRqxGX8.html
I'm working on my GXC 190 as I'm watching a refresher here. Sat for a long period n it was extremely hard to crank ie. When I did get it cranked it ran like shit n smoked. I attributed it to the engine being upside down while I installed a new pump.So per all reports the EV was probably stuck & a cracked rocker arm, right? I was expecting to find the same, but it's my intake rocker arm pin. The pin is bent. It's caused the arm to b extremely wobbly. I'm certain the valves need resetting. It literally bent that solid steel pin. 😬It was a PIA getting that outta there too. I think the Rocker Arm is bent too. Not taking any chances. No cracks tho.
@@kellywilliams9194 Wow. I can only wonder. Perhaps oil was allowed to fill up somewhere and you hydraulic-ed the valve? I don't know. Those parts are relatively inexpensive. I'd change rocker and pin. I think the rocker assy was only about $7. If it were mine, I'd assume that the exhaust valve guide was eventually going to migrate outward (if it hasn't already), and I'd do the modification on it, as outlined in my video. Make sure you at least try to tap the exhaust guide back in until it fully seats, just to be safe.
netdoctor1. I felt like I need to take the springs off to further inspect the seals. Do you have a video of removing and installing those? I'd appreciate any help. See I had never had a problem with the engine. So I'd already mounted the new pump.I gotta tear it all back down now don't I? Putting that pump on by myself, n w/no shop, vice etc. That was a damn nightmare. That's what I have 2 do right? Like I said, I already have the springs off.Thnks again for your videos and your pointers
@@kellywilliams9194 I don't have an additional video showing that process. I suggest that the most important thing to keep in mind, if you're going to remove or reinstall the valve springs and keepers, is leaving the piston at Top Dead Center. That will assure that the valve cannot be pushed back into the cylinder, which would be a nightmare if allowed to happen. The springs are not very stout, and it's relatively easy enough to pop the keeper in place on the valve stem.
