Diagnose & Repair a Cracked Cylinder Head : Cracked Cylinder Diagnosis: Finding the Cracks

Determine if a cylinder has a crack by looking at fluid leaks and looking for cracks on the side of the cylinder, possibly concealed by the piston; learn how in this free auto-restoration video.

Expert: Doug Jenkins
Bio: Doug, of Doug Jenkins Custom Hot Rods, not only servers the entire nation, but even customers outside the U.S have found the shop's services indispensable.
Filmmaker: Ross Safronoff

Category:

Autos & Vehicles

Tags:

• repair
• body
• shop
• car
• head
• automotive
• gasket
• cracked
• cylinder

[AFish1111]

yaaaaaaaaaaaaaaaaaaaaaaaaaaaaa­aaaaaaaaaaaaaaaaaaaaaaaay sham WOW lol

[godklr]

Has this engine been machined? to increase capacity. if so, this may have caused the crack.

[Olddog231]

if you drained the cooling system before opening the engine you wouldnt have that mess

[PASCHDigiMedia]

It aapears to be a late model thinwall casting, judging by the OEM roller stamped steel tappet guide. Don't bother sleeving that block. Either get a Dart block or shop around for an early block part no. C9OE-6015-B(8). The bearing saddles are fully cast (machined surface from the oil pan rail to the registers for the main caps) and there is metal for four bolt mains for caps 2,3 and 4. The only problem is that there is no casting extension for the air pump on the right side, one must be fabbed.

[ROCKSOLID19]

This happened to my E39 BMW M5 3 years ago while doing 140mph. Engine overheated and pissed coolant into the cylinders, nearly wrecked the whole engine.

[xXxchipperchopperxXx]

its not clean due to the wrong compression its clean because every time that cylinder fires it make super heated air and the coolant turns to steam thus steam cleaning

[AKIman522]

@joeymdorsey52185 Not if you want torque, there isn't. Gotta have cubes. Horsepower sells cars, but torque win the races.

[joeymdorsey52185]

@AKIman522 Right on!!! theres no replacement for displacement...

[1972FordF150]

@AKIman522 That's old stuff for ya lol

[AKIman522]

@1972FordF150 I worked on a 85 ford with a 302 just the other day that had been sitting for 5 years, all i did was put carb cleaner in it, then it gave a huge belch of flame at my face and started. lol

[1972FordF150]

@AKIman522 Those are nice trucks. The 90's Chevy trucks are good. it amazes me how much new stuff breaks down and the old stuff rarely ever breaks down.