1990 2.3 motor swap to a 2.6.

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mini_pup
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Location: prestonsburg ky

1990 2.3 motor swap to a 2.6.

Postby mini_pup » Mon Apr 04, 2011 1:11 pm

ok i have read alot today on here but some things i just dont understand so if someone could clear up what all needs to be done to use a 2.6 inplace of my 2.3. thank you for your help. i hope to have my pup back on the road this weekend coming up.
1990 bagged and bodied 2.3 isuzu pup.
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oldestisuzuist
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Re: 1990 2.3 motor swap to a 2.6.

Postby oldestisuzuist » Mon Apr 04, 2011 2:50 pm

From the 2.3 engine you need to swap to the 2.6:
-all the accessories & brackets except use the 2.6 water pump pulley, all the smog stuff
-intake w/ carb, exhaust manifold if the EGR tube won't bolt up at each end
-distributor, maybe coil
-oil pan
-engine plate, fylwheel & clutch
-you will need to install an electric fuel pump, there is no boss machined into the 2.6 head for the 2.3 mechanical pump
-one motor mount has a different part #, think driver's side, but the 2.3 mount may work
That's all I can think of right now. The valve lash on a 2.6 is .008/.008, not .006/.010 like a 2.3. If your donor engine has the 4x4 2pc oil pan you may need to use the 2.3 oil pickup tube- don't forget the gasket.
'78 Chevy LUV,1.9,4sp,headers,31's,SAS Dana 30,Dana 20,SOA rear w/Aussie Locker, body ROUGH, bought new 12/4/78. A pre-P'up?
'87 Trooper,2.3,5sp,headers,31's,ball joint flip & spacer,Aussie Locker rear,Superwinch hubs,brush guard w/5.5K winch.

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mini_pup
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Location: prestonsburg ky

Re: 1990 2.3 motor swap to a 2.6.

Postby mini_pup » Wed May 11, 2011 11:37 am

can i run the stock carb? and how many psi does the fuel pump need to be?
1990 bagged and bodied 2.3 isuzu pup.
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BlewChiZ
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Re: 1990 2.3 motor swap to a 2.6.

Postby BlewChiZ » Wed May 11, 2011 12:21 pm

You should be able to use the stock carb with no problem. I am guessing you still haven't got all the issues ironed out yet?

ROb
1990 SWB 2.3 5 speed
Lowrider don't use no gas now

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mini_pup
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Location: prestonsburg ky

Re: 1990 2.3 motor swap to a 2.6.

Postby mini_pup » Wed May 11, 2011 12:38 pm

i havent had a chance to work on it yet my job take me away from the house on the weekdays but im trying to find everything out i can before i work on it. im worried sick something not going to work right. and it seems that i cant find any help in ky.
1990 bagged and bodied 2.3 isuzu pup.
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starfire
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Re: 1990 2.3 motor swap to a 2.6.

Postby starfire » Tue Dec 27, 2011 12:14 am

I'm upgrading to a 2.6 (from a 1990 4x4 trooper) to replace a 2.3 gas in my 1990 pickup. So the 4x4 oil pan won't work? I'd like to use it since it's heavy duty and has a windage tray!
starfire 1990 Isuzu pickup 2.3/5sp shortbox

oldestisuzuist
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Re: 1990 2.3 motor swap to a 2.6.

Postby oldestisuzuist » Tue Dec 27, 2011 1:47 am

A 2wd oilpan won't clear the front 4x4 drivetrain, not sure if there is a similar problem with a 4x4 oilpan clearing something in a 2wd truck. Try it & see, report back.
'78 Chevy LUV,1.9,4sp,headers,31's,SAS Dana 30,Dana 20,SOA rear w/Aussie Locker, body ROUGH, bought new 12/4/78. A pre-P'up?
'87 Trooper,2.3,5sp,headers,31's,ball joint flip & spacer,Aussie Locker rear,Superwinch hubs,brush guard w/5.5K winch.

starfire
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Joined: Tue May 03, 2011 10:59 pm
Location: Middleton, ID

Re: 1990 2.3 motor swap to a 2.6.

Postby starfire » Sun Jan 01, 2012 11:00 pm

Will be a few weeks but I'll get back on if this oil pan works. I think it will as there isn't anything where the deep sump hangs down. As long as the exhaust clears that sump I think it is a go.
starfire 1990 Isuzu pickup 2.3/5sp shortbox

oldestisuzuist
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Re: 1990 2.3 motor swap to a 2.6.

Postby oldestisuzuist » Mon Jan 02, 2012 9:24 am

The main reason to use the 2.3 oil pan is that, at least on a 4x4 & I think also an a 2x4, it has a channel machined into it to accept the clutch cable housing and align it properly with the clutch arm. Since a 2.6 has a hydraulic clutch on the opposite side the cable slot isn't there in the 2.6 oil pan. Sorry, I should have clarified this in an earlier reply, rather than just saying "use the 2.3 oil pan".
'78 Chevy LUV,1.9,4sp,headers,31's,SAS Dana 30,Dana 20,SOA rear w/Aussie Locker, body ROUGH, bought new 12/4/78. A pre-P'up?
'87 Trooper,2.3,5sp,headers,31's,ball joint flip & spacer,Aussie Locker rear,Superwinch hubs,brush guard w/5.5K winch.

starfire
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Posts: 19
Joined: Tue May 03, 2011 10:59 pm
Location: Middleton, ID

Re: 1990 2.3 motor swap to a 2.6.

Postby starfire » Tue Jan 03, 2012 12:05 pm

On the 2.3 the engine to tranmission bracket has a hole for the clutch cable so if you mount a small bracket with the same diameter hole using a longer bolt between the engine and transmission it will take care of the cable. :)
starfire 1990 Isuzu pickup 2.3/5sp shortbox


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