Blown engine - 1987 GN

The #6 cylinder is leaking compression into the crankcase. Head gasket is blown at #2 cylinder as well.

Category:

Autos & Vehicles

Tags:

• blown
• engine
• grand
• national

[daisyandsteve]

That sound is compression

[boost4fun]

Listen carefully. The ssssssssss is compression. The wet fart sound is oil an water getting past 2 cracked pistons.

[666Superbeast666]

does it run now?

[boost4fun]

Yes and no. I had it rebuilt, and it runs, but it also has a knock. Thrust bearing is bad. Back to the drawing board....

[petrolhead2k7]

could just be a head gasket

[boost4fun]

It was both head gaskets, 2 broken pistons and 2 bent connecting rods. But it was okay otherwise :-)

[DrHeathenScum]

Here is your chance to go out and replace this 3.8 with an x-block and smoke everybody

[oohklu]

Dont you have to re surface the heads ? that's what my dad had to do when he blow the engine cuz the boost spiked 40 psi an a 70 mm turbo...

[justinity]

Beer shit.

[4x4Explorer]

as long as the block is ok then ill be ok.. haha the gn is the best car made by buick in my opinion