tewa3240 wrote:This varnish debacle interests me......have you considered Berryman B12 or that fine German fuel injector cleaner, the one recommended
every 1234.71 or however many miles?
The varnish would break up faster, and you would be that much quicker, Point-to-Point.
Then again, it may release so much varnish your filter is caked solid. But at least it (tank scrub) would be done inside 500 (15,000 - ed) miles.
Are you already lacing your unleaded with a special brew?
Good thinking here
! Yes, there is a "rate of cleaning attack" that I must stay within. I am using Sea Foam because it seems to emulsify better than the others that create coffee grounds.
I will do another update this evening, but suffice here to say I had a developing problem overlaying the fuel delivery situation that was only adding to this feeling that I was driving this bus too hard for its fuel delivery issues:
"hey grandpa, come on, keep up . . . "
"hfffffff heee whffffff, hhhhhhh, whhhffff"
"It's only a marathon, come on!"
I showed up at a very understanding Ronin10's house running on three cylinders. Had already cleaned filter, cleared tank, swapped spark plug wire and connector from my stash, in a Lowes parking lot at 7:00AM but the #3 cylinder was still dead. Could not tolerate this situation, removed #3 plug on Genesee Street not four blocks from his house, and the damn thing was white at insulator, warm to the touch, all indications that it was firing, re-installed it gingerly through the unhappy-looking Dakota Digital thermocouple ring, still deaddeaddeaddamn, and stuttered into Ronin10's driveway.
While helping Ronin10 get his new acquisition running for the first time, I was skipping back to NaranjaWesty and pulling the left fuel rail off the engine and disassembling the injectors from the fuel ring. Ronin10 most fortunately had a Ronin10SuperFuelInjector Test Stand (the 682A model with the mayonnaise jar viewing glass). My injectors were spraying flawlessly (can you believe it, after this quarry's worth of debris this system has circulated?). Got Ronin10's bus running after an eleven year sit (Naranja providing moral support I am sure) whilst reassembling NaranjaWesty's engine.
Started NaranjaWesty, and it was still running on three cylinders. Darkly removed the valve cover expecting to find a tight exhaust valve or something equally horrific for wcfvw69's great triumph, but all was fine. Then Ronin10 showed me his stash of OG spark plug wire connectors and I stole one right out of his hand, "thanks, just borrowing", and installed it in the place of the new wire/connector I had put on just hours earlier. There you go. All four cylinders. Another hapless idiot in this hobby takes the long long road because he won't believe that the new part is no good in exactly the same way that the old part was. My defective wire/connector in my stash was a Bus Depot supplied wire set for a 1600 engine.
Upshot is, the engine is running better and the fuel cleaner/varnish soup is NOT responsible for the misfires and hesitations that had begun to crop up.
Current level of cleaning is 1 ounce of Sea Foam per gallon of gas.
Colin Snoqualmie Pass Pass Two, coming up!
BobD - 1978 Bus . . . . . . . . . . .111,130 miles
Chloe - 1970 bus . . . . . . . . . . . 206,787 miles
Naranja - 1977 Westfalia . . . . . 93,996 miles
Pluck - 1973 Squareback . . . . . 55,510 miles
Alexus - 1991 Lexus LS400 . . . 72,113 miles