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4.3 V6 diesel... i need HELP!!!
by
R.O.R-2.0
on 23 Oct, 2013 16:58
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so, my room mate is debating on picking up an 85 olds cutlass (FWD) with a 4.3 diesel in it..
ive determined the car to have atleast one blown head gasket..
HEAD BOLTS are non-existent for this rare bird...
anyone have any solutions up their sleeve?
Do these engines use TTY head bolts, or regular old bolts with a TQ spec?
anyone have head bolt dimensions, or some old used 4.3 bolts laying around that i can take dimension from?
if i can determine the original bolt dimensions, i can call ARP and build up a set of studs..
Please, anyone, help me.. i dont want to see this oddity get squished...
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#1
by
vanbcguy
on 23 Oct, 2013 18:17
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File that under "Wait, what? That exists?" for me... And I was an Olds guy back in the day!!
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#2
by
R.O.R-2.0
on 23 Oct, 2013 18:29
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File that under "Wait, what? That exists?" for me... And I was an Olds guy back in the day!!
LOL.. glad i got to inform you on this car..
Caddy Deville/Fleetwood had them, as well as the Chevy Celebrity, Olds Cutlass & 98, Buick Century & Electra, And the Pontiac 6000 was the lineup that included the V6 4.3D
VERY QUIET running GM diesel... MUCH quieter than a good running 5.7D
knowing wether i can FOR SURE get head bolts/studs for this car is the only hang up right now..
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#3
by
theman53
on 23 Oct, 2013 18:47
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I would guess if it is similar to the gasser world the bolts/studs would be the same as the 5.7. I haven't worked on one either. If you pull a bolt or stud I could probably tell you what it is if I saw it next to something I knew.
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#4
by
R.O.R-2.0
on 24 Oct, 2013 02:30
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I would guess if it is similar to the gasser world the bolts/studs would be the same as the 5.7. I haven't worked on one either. If you pull a bolt or stud I could probably tell you what it is if I saw it next to something I knew.
totally different from the 5.7D.. had more head bolts..
6 per cylinder, rather than 4...
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#5
by
theman53
on 24 Oct, 2013 09:17
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But if they are the same bolt just take 2 cylinders worth out of the package and throw them out or save them?
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#6
by
R.O.R-2.0
on 24 Oct, 2013 11:18
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But if they are the same bolt just take 2 cylinders worth out of the package and throw them out or save them?
no dude, the 4.3D is not like a 5.7 gas and a 4.3 gas...
the 4.3D uses 14 bolts per bank, where the 5.7D uses 10 bolts per bank..
the head bolts on the 4.3D remind me more of 454 head bolts, than 5.7D head bolts, being that there are 2 different lengths..
supposedly, the 4.3 DOESNT use TTY bolts either... im just hesitant to re-use head bolts in anything besides a toyota or honda...
still need to determine a tq value for the bolts... otherwise im just going to go with my gut.
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#7
by
theman53
on 24 Oct, 2013 12:00
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Try calling a dealer. Maybe you will get lucky and someone there will be into the old diesel or have an old book.
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#8
by
srgtlord
on 24 Oct, 2013 13:02
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If its worth anything I might have a chilton's mechanics manual that covers most of Domestic cars from 85-86. ill have to double check to see if they say to reuse the headbolts.
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#9
by
R.O.R-2.0
on 25 Oct, 2013 11:34
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If its worth anything I might have a chilton's mechanics manual that covers most of Domestic cars from 85-86. ill have to double check to see if they say to reuse the headbolts.
i KNOW the V8 IDIs used TTY bolts.. ive heard conflicting evidence that the 4.3D used regular old bolts...
no concrete evidence as to TTY or regular tho..
if you have a book that will tell us what bolts it uses, or even just a torque spec/tightening sequence, that would be great!
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#10
by
srgtlord
on 25 Oct, 2013 15:10
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Ill search for the book set tonight. How long did they make the 4.3D cutlass, and the 4.3D used in any other GM vehicles? Need to know as I have 3 books and cannot remember exactly what years the books cover as they have been sitting in a closet for over 3 years.
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#11
by
R.O.R-2.0
on 25 Oct, 2013 17:09
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Ill search for the book set tonight. How long did they make the 4.3D cutlass, and the 4.3D used in any other GM vehicles? Need to know as I have 3 books and cannot remember exactly what years the books cover as they have been sitting in a closet for over 3 years.
they started in 82, with the cast iron headed engines, and went till 85 or 86, then stopped production..
the one im working on, the engine was a goodwrench replacement (85 book will definitely cover it)
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#12
by
srgtlord
on 25 Oct, 2013 17:37
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Cylinder head bolts 142 ft pounds for headbolts except 5, 6, 11, 12, 13, 14 are 59 ft pounds.
The book says nothing about TTY bolts.
Ill post a picture of the procedure from the book later.
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#13
by
R.O.R-2.0
on 25 Oct, 2013 17:55
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Cylinder head bolts 142 ft pounds for headbolts except 5, 6, 11, 12, 13, 14 are 59 ft pounds.
The book says nothing about TTY bolts.
Ill post a picture of the procedure from the book later.
ahh, makes sense, there are short bolts, and long bolts..
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#14
by
bajacalal
on 26 Oct, 2013 13:20
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I just can't imagine GM using TTY bolts on anything in the 80s... technologically, they were way behind the curve at that point.