1.9 engine mods?

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1.9 engine mods?

Postby Pappawheely » Fri Apr 23, 2021 2:29 am

I am new to isuzu vehicles. I have an 85 trooper with a 1.9 4 cyl. I also have a 1.8 4 cyl from a 79 Luv. I read that you can put a 1.8 head on a 1.9 and get more compression. My question is about pulling the head. I have worked on Datsun L series motors. They have an issue with the timing chain dropping into the block causing you to remove the oil pan. (you have to use a wedge to hold the chain). Is this similar to the 1.9? Is ther a manual or resource somewhare that explains how to r&r the cylinder head?
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Re: 1.9 engine mods?

Postby itsmehb » Fri Apr 23, 2021 12:56 pm

It's been a few years but when doing a valve job on an 85 1.9 I remember ty wrapping the cam gear to the timing chain then just lifting the head straight up off the block. Didn't have any issues putting it back together.

Here's a link to another member's build page on an 84. A complete engine build included in link.

https://www.planetisuzoo.com/viewtopic.php?f=15&t=85764
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Re: 1.9 engine mods?

Postby DSUZU » Fri Apr 23, 2021 4:31 pm

Wood block may be your best bet. Years back I did a head gasket on a Mazda (323?). It had a OHC and timing chain. I hooked a bungee cord to the cam sprocket (after unbolting it). Hooked the other end to the hood. I lifted the head then managed to keep the tension while I worked the head over the bungee end that had been attached to the hood. Dennis
1991 LS Trooper 2.8 V6 5 speed conversion (Sold)
1989 LS Spacecab 2.6 5 speed 4x4 manual hubs, Rodeo torsion bars, extended shackles, 2" lift, K&N air filter (drop in), dump bed conversion, burgundy interior change, warn brush bar. Engine is bored .020 oversize and upgraded to 1994 pistons, head and EFI system.
Previously owned: 1987 Trooper II LS, 1989 Trooper (parts only), 1994 Trooper 3.2 Auto, 1997 Rodeo 2.6 5 speed, 1993 shortbed pickup 2.3 (project - sold) 1992 Rodeo 4x4 LS (parts car, devoured by Spacecab needs) plus some 70 plus other non Isuzu vehicles over the years. 1994 Amigo devoured to provide head and EFI system.
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