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03-28-2012, 07:48 PM
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3" Exhaust
Join Date: Feb 2007
Location: Canada
Posts: 99
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Well, did a compression test this weekend past and was not good...didn't get any readings on #1 and 2 and about 50 on #3, and around 25 on the rest..so just going to look around for a new engine.
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1987 N/A Targa 5 speed no mods as yet |
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03-28-2012, 10:42 PM
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#2 | |
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12psi boost
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Quote:
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1986 Mk III MA70 7MGE Targa Top 5 Speed Stock Exhaust 
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03-28-2012, 11:21 PM
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 Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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Zero on one or two cylinders.... sure... seriously blew the HG, melted holes in pistons, etc. Low reading on a couple cylinders... sure, same possible causes as the former... Low readings on ALL cylinders... bad gauge, operator error, head lifted, or entire bottom end fell out.
I'm thinking you should pull the head before you start throwing money at unknown problems.
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04-01-2012, 01:59 PM
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#4 |
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3" Exhaust
Join Date: Feb 2007
Location: Canada
Posts: 99
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I have decided to take it apart...almost done and will post as to my findings..I am only a novice as far as mechanical skills go.
the timing belt looked fine as far as I could tell.
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1987 N/A Targa 5 speed no mods as yet |
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04-01-2012, 08:32 PM
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#5 |
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3" Exhaust
Join Date: Feb 2007
Location: Canada
Posts: 99
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I have all the head bolts removed but the head will not budge not even a wiggle..14 head bolts are loose and the timing belt is removed the exhaust manifold is removed.
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1987 N/A Targa 5 speed no mods as yet |
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04-01-2012, 09:45 PM
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#6 |
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3" Exhaust
Join Date: Feb 2007
Location: Canada
Posts: 99
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Ok so I got the head off.not the head gasket or I dont think so...2 of the pistons look like thay were cooked...totally charred up and burned to crap.
So looks like I need a new engine
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1987 N/A Targa 5 speed no mods as yet |
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04-01-2012, 09:48 PM
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#7 |
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Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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Sounds more to me like you need new pistons and probably to get the block machined... Typically MUCH better than a used engine swap.
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If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar ---> |
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