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blown head gasket

Discussion in 'General Tech and Maintenance' started by dunchan1, Jun 18, 2008.

  1. dunchan1

    dunchan1 New Member

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    For the second time in a relatively short period, my 83 civic (1500 cc) has blown the head gasket. 1st time, the head was milled to true it and block was checked for true. Appx 400 miles later, another blown gasket. We're not using the the steel gasket .. Honda dealer no longer carries this part so had to go to afte market. As far as I know, neither time did the unit over heat. After the first incident I installed a new heat sensor in the radiator and the fan is working properly. There is no indication of any problems with the head or the block or the cylinders. Can anyone help me with this mystery?
     
  2. stock98EKcoupe

    stock98EKcoupe New Member

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    stupid questin, did you use gasket sealer?
     
  3. dunchan1

    dunchan1 New Member

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    Dunno about the sealant. Mech has worked Hondas for over 30 years so assume it was properly installed. It was the graaphite gasket both times, not the steel one which DOES require sealant as I understand. One thought occured to me this a.m. ... could a bad radiator cap... IE too much pressure .. cause this problem??
     
  4. stock98EKcoupe

    stock98EKcoupe New Member

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    maybe, crank em down with some arp's to prevent head lift
     
  5. dunchan1

    dunchan1 New Member

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    Whoa ... ya got me there dude. What do you mean "arp's" and "head lift". Could you clarify for this old man?
     
  6. stock98EKcoupe

    stock98EKcoupe New Member

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    headbolts are what hold your head to your block. ARP's are just stronger name brand headbolts. People use them a lot for turbo setups ,when you increase the amount of pressure in the cylinders, to prevent the head from lifting up (which is bad news). I would try to get a MLS (multilayer steel) headgasket and a set of ARP's for your specific engine off the internet. I just don't know what all they have out for your engine.

    EM1 1.5 8V SOHC CVCC 3bbl Carb 1487 63hp@5000rpm 77tq@3000rpm 81-83 Civic

    You need to upgrade!!
     
  7. dunchan1

    dunchan1 New Member

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    Oh I know what head bolts are .. I've been twisting wrenches for over 60 years .. I just didn't know the term "arp". I can't imagine that the compression in that little banger would be great enough to do a head lift... unless the OEM head bolts are soft as heck. However ... it is something to consider and I do thank you. Why do you say I need to 'upgrade'. When that little pinger runs, I get 40 MPG ... and there ain't nothin wrong with that!!
     
  8. stock98EKcoupe

    stock98EKcoupe New Member

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    I get 40+ mpg with a d16y8 (126 HP) with a dx tranny.

    Like you said, your OEM bolts are weak. When you change a head gasket you are supposed to retorque them ever so often because they ten d to stretch.
     
  9. dunchan1

    dunchan1 New Member

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    Well, we're sure going to do that from here on in. I do thank you for your replies and suggestions. No matter how much we think we know, there's always room to learn more. Hope ya have a great day.
     
  10. YBLEGAL

    YBLEGAL Regular Member w/ Cheese

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    Well actually it's not recommended to reuse head bolts. They are called 'torque-to-yeild'. Here's a nice lil article about it that will explain it some more. U.M.R. Engines. TORQUE TO YIELD HEAD BOLTS

    ARP is a manufacturer, Automotive Racing Products. Here's a good place to order some if you want. ARP Heavy Duty Head Studs

    Honestly since your just repairing a problem and not upgrading a darn thing, there is no reason to get ARP bolts. Try and locate a new set of OEM bolts. A good website for ordering OEM Genuine parts would be Honda Automotive Parts and maybe you can find a headgasket on there for your motor too. I have no experiance with those aftermarket head gaskets, but at the least we should have confidence that an OEM one would be sufficent...if anything.

    You might want to have a shop check to see if the block or head deck is warped. Other than that, I know people putting 1.3kg.cm2 radiator caps on which increase the pressure from the standard 1.1kg.cm2 and not having head gasket issues. I would assume if it's not over heating, then a cooling system error wouldn't be the culprit. You could also try a coolant flush, as a blockage in the system somewhere could be causing an increase in pressure.
     
  11. dunchan1

    dunchan1 New Member

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    Thanks much for your reply and suggestions. We'd already decided that after replacing the gasket this time, to torque, bring the engine to temp, torque again, cool, check torque, bring to temp and check torque again. Sounds like my guy had the right idea ... except we didn't replace the OEM head bolts. I'll post when and if we get this thing cured.
     
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