Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

87 4WD carb wagon cooling system issues


  • Please log in to reply
14 replies to this topic

#1 Hondasucks

Hondasucks

    Subaru Technician

  • Members
  • 4,760 posts
  • Vancouver, WA

Posted 12 November 2003 - 03:45 AM

A friend of mine has an 87 carbureted EA82 wagon and she started having some cooling system issues with it this morning. She drove it to her school, which is about a mile from her house, adn she said abotu halfway there her temperature gauge was nearly pegged, and then when she pulled into the parking lot and parked, it went back down to normal. After class, she dumped like a half a gallon of water into it, and started it up, everythign seemed normal except for the antifreeze dripping from the tailpipe. She also said there was a puddle underneath it that was abotu the size of a fist, that was brown in the middle and black on the edges, but I had her check her dipstick and her oil was not foamy or milky or anything. I am leaning towards a cracked head, since I know those like to crack in the exhaust ports.
Any ideas on finding which is cracked other than dropping the exhaust and watchign for drips? I have a good passenger side head, but if her driver's side head is bad, does anyone on here have a carb EA82 head they'd be willing to part with???

#2 torxxx

torxxx

    I void warranties

  • Members
  • 2,914 posts
  • Fairbanks

Posted 12 November 2003 - 03:51 AM

heads are fuct

#3 Flowmastered87GL

Flowmastered87GL

    WCSS Drunk

  • Members
  • 6,088 posts
  • Portland, Oregon

Posted 12 November 2003 - 03:52 AM

If the passenger side head is screwed its a direct bolt on. If the drivers side head is screwed all you need to do is plug the EGR bunghole thingie with a bung of some sort

Heh heh I said bunghole :D

#4 TomRhere

TomRhere

    Certified BRAT nut!!!

  • Members
  • 3,956 posts
  • Hillsdale, Mi. USA

Posted 12 November 2003 - 05:55 AM

Head is cracked.
A compression test may tell you which side is FUBAR.
Heads are the same for either Driver or Passenger sides, on non-turboed engines, except for the EGR passage. (This one wonders if one can't drill-out that passage.) It's the cam cases that you can't swap.

#5 Flowmastered87GL

Flowmastered87GL

    WCSS Drunk

  • Members
  • 6,088 posts
  • Portland, Oregon

Posted 12 November 2003 - 05:57 AM

actually my 88 GL was performing similar to this when I bought it, all it needed was a head GASKET...

I'm interested to see whats wrong when we tear into it.

#6 Hondasucks

Hondasucks

    Subaru Technician

  • Members
  • 4,760 posts
  • Vancouver, WA

Posted 14 November 2003 - 05:46 PM

although I talked to her today, and she says that now it is acting fine, although she did find another puddle of mixed water and oil underneath it this morning :-( but she said it didn't overheat at all last night. She said it got a little hotter than normal, but then like 30 seconds later it was back at normal again.

Would a compression check make a cracked head show up if it was cracked in teh exhaust ports?

I know there is a check to determine if there is hydrocarbons in the coolant, but I don't want to go spend $30 on a tool, does anyone know if you can get test strips to determine this?? I don't want to tear into it if nothing is wrong with it.

#7 Flowmastered87GL

Flowmastered87GL

    WCSS Drunk

  • Members
  • 6,088 posts
  • Portland, Oregon

Posted 15 November 2003 - 03:25 AM

What I was told by Bob (he sold you the freeze plugs Andrew)...

Leakdown tests tell you whats REALLY going on

compression tests only tell you so much...

Dunno if that helps, dont know how to do a leakdown test... but thats what he said when I had the 87 turbowagon compression tested.

#8 Hondasucks

Hondasucks

    Subaru Technician

  • Members
  • 4,760 posts
  • Vancouver, WA

Posted 15 November 2003 - 05:21 AM

Leakdown tests show the cylinder's ability to hold air. Normal leakage is about 10%, much more than that and you know you have probs. I've seen engines develop compression pressure that was low but within spec, but have 40% leakage. Not good. Although if her head is cracked in teh exhaust port like they usually do, a compression or leakdown test wouldn't show it, since it;s not in teh combustion chamber.

#9 Skip

Skip

    Flatuous Blather

  • Moderator
  • 8,991 posts
  • Latrobe, Pennsylvania

Posted 15 November 2003 - 07:20 AM

Most shops will perform a coolant system leak down test test for only a few sheckles.
If it show it is leaking down, pull the plugs and crank it
If H20 spues out a Cyl -> headgasket
if H20 comes out the exhaust -> the head is cracked

hope this helps

#10 Gloyale

Gloyale

    It's a sickness

  • Members
  • 8,888 posts
  • Corvallis, OR PNW

Posted 05 January 2007 - 11:07 AM

Leakdown tests show the cylinder's ability to hold air..... Although if her head is cracked in teh exhaust port like they usually do, a compression or leakdown test wouldn't show it, since it;s not in teh combustion chamber.


cracks in these heads ussually start from the little spot between the valves. every head Iv'e ever taken off has it. It is a matter of whether the crack goes far enough back into the head to get to a water passage. If that crack has grown that far it would create an open path out of the cylinder and you would see a drop in compression. However ussually these cracks only go about a half inch to an inch up into the wall seperating the intake/exhaust ports. You can look by removing the valves and peakin up in there. Crack has to run almost 2 inches up into the head before it hits any water passages.

#11 matts87glsedan

matts87glsedan

    USMB is life!

  • Members
  • 229 posts
  • lumby BC

Posted 05 January 2007 - 02:47 PM

my 87 was heating up, and was losing coolant. it turned out that i had a pinhole leak in one of the top hoses behind the carb (the little ones), and i had leaky intake manifold gaskets. the amount of work it takes to do IMG's is small, and may be worth trying before you get into the HG's. these two things fixed my overheat issue. I had coolant dripping out my exhaust ports also.

I also replaced the tstat while i was at it.

#12 Caboobaroo

Caboobaroo

    USMB Drunk

  • Members
  • 6,854 posts
  • Oregon City

Posted 05 January 2007 - 08:51 PM

wow I remember this post. Go 2003!!!:-p

#13 matts87glsedan

matts87glsedan

    USMB is life!

  • Members
  • 229 posts
  • lumby BC

Posted 05 January 2007 - 09:37 PM

gawdammit, i hate it when i do that ************e. .. :banghead:

i even took the time to edit that post. and this one too

#14 nipper

nipper

    Semi Elite Master of the

  • Members
  • 17,541 posts
  • Long Island NY

Posted 05 January 2007 - 10:05 PM

Can be a combination of problems. Check the condition of the radiator and the cooling fins. Is the puddle coming from the side or the middle of the engine (water pump leaking). A quick HG test is to start the car with the raditor cap off. If its a major issue the car will start vomiting coolant asap. If its little the car will burp when the thermostate open, then top off if needed, and see if there are bubbles in the coolant.
Do you know how many miles are on this car? When was the last time it was serviced or had the timing belt/water pump changed?

nipper

#15 Hondasucks

Hondasucks

    Subaru Technician

  • Members
  • 4,760 posts
  • Vancouver, WA

Posted 09 September 2007 - 02:55 PM

lol I fixed that car a LOOOOONNNNNGGGG time ago... Had a cracked head lol when I dropped the exhaust pipe off there were coolant droplets in the exhaust port :-P




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users