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80 series 1 HDT Compression

Tech Talk for Cruiser owners.

Moderators: toaddog, Elmo, DUDELUX

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Posts: 31
Joined: Wed Jan 21, 2004 12:36 pm
Location: Williamstown, Melbourne

80 series 1 HDT Compression

Post by RustyNail »

Gday all..just got my rig back from the doctors today. The compression and cylinders were as follows (1) 500 (2) 450 (3) 440 (4) 280.. :cry: (5) 450 (6) 500...

As Im aware, looking through the books they are meant to be around 490 and a difference of +/- 70 as "normal" . Its done 205,000kms and in the two years Ive owned it has not used ANY oil or ANY coolant. Blown head or faulty rings seems to be out of the equation as there is no evidence of water under the engine oil filler cap. The oil pressure tested as close to perfect as could be. Is it Valve problems..?

Cheers.....Dave
'91 1HDT 80 series
'89 22R Bundy
Posts: 1513
Joined: Tue Oct 21, 2003 8:06 pm
Location: North East Melbourne

Post by ORSM45 »

could be a valve not sealing properly. im no 'doctor' but seems like the only other thing it could be.

MaccA
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Joined: Mon Oct 21, 2002 8:49 am
Location: KILL - SCYTH

Post by 80diesel4play »

If its factory turbo - then get the botom end loked at while you are there - $500 now saves 6000 later.... They are prone ot failure every 100,000 or so....

Very odd though.
80 Series Turbo - the Toy car...
XR6 Turbo - the work car...
XW wagon - the dogs car...
Posts: 31
Joined: Wed Jan 21, 2004 12:36 pm
Location: Williamstown, Melbourne

Post by RustyNail »

Yeah the big ends were done before I bought it, Toyota had the records. Keeping my fingers crossed on a valve problem..Its just running way too well these days..!! :lol:
'91 1HDT 80 series
'89 22R Bundy
Posts: 295
Joined: Thu Jan 16, 2003 8:05 pm
Location: Brisbane, Southside

Post by Punchy »

Might find it needs a shim job on the valves.

The book says check them every 40k

I had my beast comp checks a little while ago,
Average was 480

Like new they said,

Mines done 318k

but i did the big end myself 15k ago aim glad i did...nasty things and best to change them every 50 -100 k,,,for 36 dollars and a bit of chemical sealant...cheap investment
45 series ute - 308 -gas -35's- lifted -no flex..But i got air lockers !

2006 VX v8 4.7 Landcruiser, bog stock. It's black so its cool !
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