Need to Know engine compression for a 93 mod. mazda B2600 4x4i. Thanks. Geoff.

It's pretty easy but you'll need to work under the vehicle, so make sure that the vehicle is on ramps or axle stands. Don't work under the vehicle just on a jack as it can slip & you can be killed.! Run the engine for 5 minutes to warm up the oil. Remove the sump plug & drain the oil into a suitable container. Remove all the bolts which hold the sump onto the bottom of the engin & drop it down. (sometimes there are additional sump bolts near the crankshaft which are on the side of the engine) You may need to prize the sump off. Do this slowly & carefully to avoid damage to yourself, the engine & to avoid twisting the sump tray. The oil pickup will now be seen. Remove the 1 or 2 bolts securing it. Wash it with degreasant or hot water & detergent Reftitting is the opposite of dismantling, BUT, You will need to clean-up both of the mating-faces of the sump & bottom of the engine. When they're clean, use a new sump gasket & a good oil-sealing gasket-sealant. Follow the instructions on the sealant about drying times. Bolt the sump back in position, using the correct bolt sequence & torque tightness. Replace the sump bolt. Fit a new oild filter & refill with new, clean oil.

1st thing I would recommend would be getting the whole engine degreased.then drive vehicle for a couple of days and then recheck where leak is coming from 100percent as it could be running down from rocket cover gasket.
if you pin point the leak is coming from the sump you will need to drain oil and remove sump and clean surface area and resell sump and refit.also replace sump plug gasket while ur going.

the water can get into the sump oil from pin holes in the timing case behind the water pump impeller
if you have water in the sump oil it will be a dirty grey color and the filler cap will have water droplets under it
If the oil is normal color then the loss could be from rusted welsh plugs
pressure test the cooling system to check for leaks

First thing ,,,Is to remove dipstick and run engine [now how much back pressure have you got] if none ,ok .what is the oil pressure when cold,and when hot , should be very little differance, what ring gap did you give the rings when they were fitted. and was the rear main seal a good fit or loose fit ,,,and as for fitting new oil rings AGAIN and that stopped the pressure in the sump from blowing out the dip stick hole well THE compression rings are the ones which should have been checked for the correct gap and at -003thou per inch per bore,as the oil rings are only oil scrapers, and compression rings are for Compression is what you have a lot of in the sump.
Let me know how you get on,

Is it diesel or petrol ????

You could have bad rings, valves not sealing, or worse cracked cylinder or cracked head. If it was one of the last two then you would be losing oil/water, or oil and water would be mixed. Either way it needs to go to a machine shop.

If you need further help, reach me via phone at https://www.6ya.com/expert/steven_a67ead41eb5fc62a

yes a head gasket failure cancause this. spary oil, wd-40 into those 3 cyc;lindersand see if cmpression increases. if it does you need rings. if it does not you need a head gasket.

hello,sorry,i just read your comments,better to remove your sump guard,(be careful),to see the oil drain plug,

you need to do a compression test worst case scenario you might have to rebuild motor