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Ta, as far as I know the original plug is DENSO K20R. Would that be a better choice, (for a stock engine)?

ages back, the previous century, when I did my mechanical engineering degree all engines in my text book had a sweet spot the spot (or range/area rather) is quite visible if you make the right diagram ordinary X/Y axis diagram plotting in juice consumption, rpm, gear, hp taken out/torque taken...

Running smooth again. Done what? Made some cable connections "stronger". Changed all spark plugs. Now, runs as silk. Re spark plugs, they were not clean, but not very dirty. New spark plugs made it! Maybe the 1UZ is hungry for high quality sparks? Dunno. I am using the following spark...

Guess I shouldn't have said smooth as ever above. Didn't last long. Been running fine for 3 days. Today, after a while, it suddenly stopped while idling. Easy to start again but will not run below 850 rpm, runs fine at higher rpm. Maybe fuel problem, maybe electrical - dunno. Must test more...

Thanks. yes, it is fast, very fast my previous/first boat was good for 55-60 knots (depending a bit on humidity and air temperature) (same engine), fastest boat in Bangkok I reckon my new boat is built with hardwood (and is a bit longer) and is heavier so top speed is presumably lower, say 50...

right, thanks. btw, the UZ is running as it should do, again. Got it flying yesterday, smooth as ever. (and all my extensive and fancy cabling seems to work as planned)

final rant for today; I mentioned above that sunshine, rain and wind represent problems another problem area is tape, electrical tape to sea wires/connections just cannot find any good tape in Thailand, have been looking for years I'm mostly using 3M tape. A week or two after it has been...

now IGNITER again: Do they perform any other tasks than guiding the ignition? when looking at the front of the igniters; from left to right the wire positions are marked; (the marking is at the back of the plug) F T B EXT C on one igniter the EXT position is blocked, rubber plug...

thanks yes, my loom looks like double ***** an incredible number of solderings in it, but they are all strong, I have tested every single one for strength my plugs (or sockets rather) do not have an "inspection hatch". went to my fav, workshop in my fav. scrapyard today got hold of...

thanks for responding will pop off to a couple of scrapyards tomorrow and see if I can get hold of a couple of ignitors with plugs and cables in place there are two-three pretty good electricians around that I know, but they are sought after people and have waiting lists yep, issues are...

IGNITERS; Are the two igniters identical? Do they perform the same tasks? Do the igniters perform other tasks than guiding the ignition? (I have 4 cables on each igniter. On one of the igniters one of the cable holes is plugged with a rubber plug without a cable hole. On the other one, one...

Igniter shit again: Have had problems getting the mill to fire. Discovered today that one of the cables on one of the igniters was broken, might be the likely cause. Now, the cable was broken off just 3 millimeters from the rubber seal inserted into the igniter. These igniter cables, can they...

Collecting dust they are. I have my 1UZ in a boat, the boat sunk, twice. The ECUs didn't work after that, no surprise really. One ECU sat on a shelf for 6 weeks, while I was out of the country, hauled the engine before I left. When firing up again after returning the ECU works but only...

sure found the piece, didn't measure it but 10 cm sounds about right never occured to me that this should be called sump though (had to look a bit, partly covered by the radiator and partly covered by big steel frames on the engine that is used for bolting the engine to a gimbal)

right, think I understand what you mean, need to have another look in sunshine then (mebbee early tomorrow morning, if not - next week) (yes, the bottom part is chromed) (I also have some problems with high oil temps, the mill is in a boat - and boats are ALWAYS driving uphill, no such a...

last bad photo for today this ought to be the right hand side sorry, this was real crap photo, too much close up (that purple curly thing stretching from the uppper right hand part of the photo and down towards the left is actually just a single AWG20 cable, really slim (my gear oil...

more left side, the deep (75 mm) part of the sump ends right aft of the oil filter

maybe this photo thing works out; this the front part of the sump, measured again this morning, 7.5 centimeters down from the block left and right side to follow

what you say is quite right, what I measured was the part of the sump that extends the longest distance downwards from the block (i.e. the front part of it)

my guess is aluminium or maybe some other light weight stuff it is NOT a dry sump (whish I had one of those) usually about 5.5 liters of oil there no, it does not run the full length, its a front sump Toyota engine, (my guess is from a Toyota Celsior) (late 1994/early 1995) I have...