Engine Blow By - All That You Need to Know | Rx Mechanic
Engine Blow By - All That You Need to Know | Rx Mechanic
10 viewsJan 27, 2020
rxmechanic.com
Quick tip for checking diesel engine blow by. A lot of sellers just pull the oil cap, make a video and call it a test, but that alone doesn’t tell you much. To really check blow by, you need to find the crankcase breather and pinch it closed while the oil cap is off. If pressure builds and you get heavy vapor pushing out, that’s a sign of blow by. A light haze is normal on a healthy diesel. This is a simple check you can do in minutes before buying a used truck. #diesel #mechanic #enginerepair #
0:38
Quick tip for checking diesel engine blow by. A lot of sellers just pull the oil cap, make a video and call it a test, but that alone doesn’t tell you much. To really check blow by, you need to find the crankcase breather and pinch it closed while the oil cap is off. If pressure builds and you get heavy vapor pushing out, that’s a sign of blow by. A light haze is normal on a healthy diesel. This is a simple check you can do in minutes before buying a used truck. #diesel #mechanic #enginerepair #
42.5K views2 months ago
FacebookStartupSlick
Checking for blow by on a diesel is more than removing just the oil cap. Blow by is when combustion pressure in the cylinder during the power stroke leaks past the piston and into the crankcase. When the oil cap is removed you can get a quick idea of crankcase pressure but it is not the full picture. You have to pinch the crankcase breather hose for a moment to force all the pressure to show at the oil fill hole. I believe that this is the best way to see the real amount of blow by without speci
1:11
Checking for blow by on a diesel is more than removing just the oil cap. Blow by is when combustion pressure in the cylinder during the power stroke leaks past the piston and into the crankcase. When the oil cap is removed you can get a quick idea of crankcase pressure but it is not the full picture. You have to pinch the crankcase breather hose for a moment to force all the pressure to show at the oil fill hole. I believe that this is the best way to see the real amount of blow by without speci
154K views4 months ago
FacebookStartupSlick
What’s diesel blow by? What to look for as a diesel owner or someone looking at purchasing a diesel truck. This is the easiest thing to check for to avoid an expensive repair #engine #enginebuild #enginebuilder #enginerepair #machineshop | Dave's Engines
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What’s diesel blow by? What to look for as a diesel owner or someone looking at purchasing a diesel truck. This is the easiest thing to check for to avoid an expensive repair #engine #enginebuild #enginebuilder #enginerepair #machineshop | Dave's Engines
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