@@olsonsspeedshop1875 yea, well thank you. Just to the point. No 'look at me' or ' I got this going for me'. Just common sense to the freggin point, this is how it's done, how you do it and or this or that. Priceless. Your are one of the few left in an upside down world my friend. And I consider myself fortunate. Hear hear
Yes I have an OTC leak down gauge just like yours, and I'm not sure if it is because I'm not onTDC or if I have a bad leak like you have. I also put a ballon on the leak-down hose and crank the engine; the balloon blue up and emptied real fast.
I built a 357 sbc with pro max aluminum heads for my Chevy II. I have a thumping noise in the coolant and heater hoses. I have tried changing the thermostat and burping the engine with no luck. Next step might be the leak down test to check for combustion in the coolant system. Any thoughts? Thanks man!
My engine only shakes after warming up. Can someone tell me what it might be? I know there are some smart people here. The vehicle barley moves when pressing the gas, smoke or steam coming out of the exhaust pipe, etc. The water pump went bad and I replaced it. I think I had a blown head gasket. I used gasket sealer and the smoke reduced almost completely but when I first turn the vehicle on a puff of smoke comes out. No check engine light. The temperature guage does not go up enough when my scan tool shows a much higher temperature. The engine is knocking. When I remove the upstream oxygen sensors I hear something like clunking or air quickly releasing from the exhaust valve when it shouldn't, on the side that shakes the most. I would really appreciate advice, suggestions, etc. Thank you.
No, I think you’ll be able to hear it coming from the drain holes in the heads for the oil. Remember you will always have some blow by so don’t worry a ton about that but it shouldn’t be excessive. If you don’t hear a lot out of your carb/intake or your exhaust, it will be rings. What engine are you testing?
so looking on ebay pistons were only about 130 machine work where I live is about 400, if you do a stockish rebuild even with machine work you might do it for 1000-1500 if your lucky
Heay your motor did better than mine , I set it at 100 , it was reading 20 on the other gauge ..its a old kohler 26.5 hp horizontal shaft , both cylinders, one is intake valves the other is exhuast , nothing from the oil pan - rings ..I consider that lucky if that's the case ..
Comment isn’t saving for some reason. Try again, Here is the formula from my site if you can’t get 100 psi out of your compressor th-cam.com/video/898YrshRmTU/w-d-xo.html I also made my own leakdown tester. Just remember you need a 0.040 orifice hole in the middle of the 2 gauges. I just fill the male to male fitting with JB Weld then drilled my hole. The bit is available at your local hobby store where you buy models.
Great instructional video. spoke clearly and easy to understand from a lay mans POV. I could see you being a shop teacher.....Appreciate your video!!!
Man.... The absolute best instruction on the entire tube. Hands down.
Thank you! Glad you like the video.
@@olsonsspeedshop1875 yea, well thank you. Just to the point. No 'look at me' or ' I got this going for me'. Just common sense to the freggin point, this is how it's done, how you do it and or this or that. Priceless. Your are one of the few left in an upside down world my friend. And I consider myself fortunate. Hear hear
Thank you. Long story short: I have a '62 Cadillac 390 engine that has some pretty dismal results. Your video helped a lot!
Hi I love the old Chevy cars, and the old Chevy small block V8's, so keep up the good work !
Good work. Looking forward to seeing the tear down video.
Yes I have an OTC leak down gauge just like yours, and I'm not sure if it is because I'm not onTDC or if I have a bad leak like you have. I also put a ballon on the leak-down hose and crank the engine; the balloon blue up and emptied real fast.
I built a 357 sbc with pro max aluminum heads for my Chevy II. I have a thumping noise in the coolant and heater hoses. I have tried changing the thermostat and burping the engine with no luck. Next step might be the leak down test to check for combustion in the coolant system. Any thoughts? Thanks man!
try using Lucas transmission fluid additive, it is tacky and thick and it sticks to the cylinder walls and piston rings or Lucas engine oil additive.
Great idea!
Great video
thank you
My engine only shakes after warming up. Can someone tell me what it might be? I know there are some smart people here. The vehicle barley moves when pressing the gas, smoke or steam coming out of the exhaust pipe, etc. The water pump went bad and I replaced it. I think I had a blown head gasket. I used gasket sealer and the smoke reduced almost completely but when I first turn the vehicle on a puff of smoke comes out. No check engine light. The temperature guage does not go up enough when my scan tool shows a much higher temperature. The engine is knocking. When I remove the upstream oxygen sensors I hear something like clunking or air quickly releasing from the exhaust valve when it shouldn't, on the side that shakes the most. I would really appreciate advice, suggestions, etc. Thank you.
So if you don't have a breather sticking out like your engine how would you do test for rings?
You can pull off your oil cap and listen and feel for air blowing. That will tell you if your having a lot of blowby into your crankcase.
@@olsonsspeedshop1875 So if the valve covers are off put them back on?
No, I think you’ll be able to hear it coming from the drain holes in the heads for the oil. Remember you will always have some blow by so don’t worry a ton about that but it shouldn’t be excessive. If you don’t hear a lot out of your carb/intake or your exhaust, it will be rings. What engine are you testing?
@@olsonsspeedshop1875 testing a sbc 400 engine all original thats been sitting for over 20 years in a climate control garage but it runs great
@@dickeymoore3662 very cool! Sounds like an a great engine.
so looking on ebay pistons were only about 130 machine work where I live is about 400, if you do a stockish rebuild even with machine work you might do it for 1000-1500 if your lucky
Can this test tell if the bottom end is good,if so how?Thanks
It will only tell you if you have bad rings, bad head gasket or bad valves. As far as bearings and such, it won’t help.
That's correct for the year firing order
Don’t the rockers have to be loosened to where both valves are shut?
No. When your TDC, both valves are closed.
Heay your motor did better than mine , I set it at 100 , it was reading 20 on the other gauge ..its a old kohler 26.5 hp horizontal shaft , both cylinders, one is intake valves the other is exhuast , nothing from the oil pan - rings ..I consider that lucky if that's the case ..
Comment isn’t saving for some reason. Try again, Here is the formula from my site if you can’t get 100 psi out of your compressor th-cam.com/video/898YrshRmTU/w-d-xo.html I also made my own leakdown tester. Just remember you need a 0.040 orifice hole in the middle of the 2 gauges. I just fill the male to male fitting with JB Weld then drilled my hole. The bit is available at your local hobby store where you buy models.
Very cool. Thanks for your link. Great idea making your own.
Spend some money you got it
Fix the engine thats in the 55.
40 psi ?not good