Whats more common, cracked head or block?
Thread Starter
Registered!!
Joined: Jan 2012
Posts: 6
Likes: 0
Rep Power: 0 
Whats more common, cracked head or block?
My car has been overheating for awhile now, I replaced the Headgasket and still overheats.
I have removed the thermostat. The car only overheats when I drive it. It holds steady while idle. Coolant and oil doesn't seem contaminated, I do notice small bubbles rising from the radiator cap opening.
so what is more common, a cracked head or a cracked block? I hate to replace both.
I have removed the thermostat. The car only overheats when I drive it. It holds steady while idle. Coolant and oil doesn't seem contaminated, I do notice small bubbles rising from the radiator cap opening.
so what is more common, a cracked head or a cracked block? I hate to replace both.
Thread Starter
Registered!!
Joined: Jan 2012
Posts: 6
Likes: 0
Rep Power: 0 
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 518 
Re: Whats more common, cracked head or block?
Head warped from the overheat. A head gasket can't seal against a curved surface. Send the head to a reputable machine shop, they will tell you what needs done and how much to do it.
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 518 Re: Whats more common, cracked head or block?
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 518 Re: Whats more common, cracked head or block?
Those would be excellent numbers for a Model T or a Flathead Ford. Are you testing one of those?
You posted in a Civic forum, so I guess not. Got any helpful info about your car?
Use common sense here, all cars are NOT the same.
Year, model, engine, # of doors, country, etc.
Most Honda engines will reach 180-220psi if the engine is proper, your test equipment is accurate, and you do the test correctly.
You posted in a Civic forum, so I guess not. Got any helpful info about your car?
Use common sense here, all cars are NOT the same.
Year, model, engine, # of doors, country, etc.
Most Honda engines will reach 180-220psi if the engine is proper, your test equipment is accurate, and you do the test correctly.
Thread Starter
Registered!!
Joined: Jan 2012
Posts: 6
Likes: 0
Rep Power: 0 Re: Whats more common, cracked head or block?
1998 D16y7 DX USDM.
I figured the numbers were a tad low, I was really more concerned with fluctuations between cylinders. I'll keep you guys updated.
I figured the numbers were a tad low, I was really more concerned with fluctuations between cylinders. I'll keep you guys updated.
Joined: Sep 2002
Posts: 51,241
Likes: 20
From: NV
Rep Power: 812 Re: Whats more common, cracked head or block?
older civic engines are around 128psi per cylinder for the lower hp models. and yeah, always have the head checked for warpage before reinstalling. i can almost guarantee it will need resurfacing even if you did not overheat (something caused the gasket to blow afterall). there is no way a compression test will show a small leak. if you have bubbles in coolant and are losing coolant from burning in the engine, everything has to come apart again.
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
Xuhme
Cracked block early R18 Overheating
21
Aug 7, 2023 03:40 PM
thana
Overheating or loss of coolant, heater blowing cold
11
Jun 15, 2020 07:05 PM
7thgensurvivor
Mechanical Problems/Vehicle Issues and Fix-it Forum
38
Aug 29, 2015 11:50 AM
stryder12
Archive - Parts for Sale
3
Jun 30, 2015 08:33 PM
Supramk3
Mechanical Problems/Vehicle Issues and Fix-it Forum
1
May 11, 2015 07:55 PM
