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Date registered: Sep 2012
Vehicle: '76 406 former German Army
Location: Millerstown, PA
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Valve Seal Replacement?
I ordered a full set of intake and exhaust valve seals from EuroTruck and have had them for...oh, maybe a year now.
How big a deal is it to swap these out? I've done a LOT of mechanical and engine work just not on these. I would speculate pulling injectors, pressurizing cylinder, spring compressor, pull keepers, pull old (hopefully old and cracked or otherwise poor condition) seals, replace...then start going back together. I'm not sure if my manuals have valve lash specs.
Anyone with any input would be greatly appreciated! The 'mog-stink' is pretty bad. If I'm on the trails it'll kill any mosquito in a wide radius, after a road trip it seems better but only for a short time. Engine runs very well otherwise.
I have my fuel turned up to prolly 100hp and a pyrometer, and bumped the timing ahead 3* or 4* when I did it. I wrote it down, I'll have to check exactly. I made a scale on AutoCAD from center of pump where it would pivot up to bolt to tell the degrees of movement. I may just need more timing but I think she's pulling some oil too. The exhaust is really nasty. Truck only has 17,000miles.
Any input or suggestions, again, is greatly appreciated!
My 406: XM-47's, hydraulic driven Garwood 10,000lb pin-on front winch, custom bumper, small jib for front or rear, PTO driven 20,000lb Garwood rear winch w/ level wind, (super secret
) forward-N-reversing unit for rear winch/PTO operation, 8 speed 2x4 conversion...+2, front 3pt hitch, HT11-A1 backhoe.
"I was just walking down the hallways of a high-school while kids were changing classes. Believe me, the world may not have ended today, but the future doesn't look so bright. -Trev"