4 Cylinder Engines in CJ7
 

I was wondering how good the 4 cylinder engines are in these jeeps. Is
it a good option for medium-core 4-wheeling on the cheap? I know the
I6's are great (I used to have a Cherokee), but will the I4 be a good
compromise with gas prices the way they are? Also how about the
longevity factor. How many miles can one expect to get out of this
engine?

Thanks in Advance
John

Re: 4 Cylinder Engines in CJ7
 

The 4 cyl and 6 cyl are both extremely durable engines. Both will run to
150k miles and up as long as they get decent maintenance and no serious
abuse (overheated or over reved) Off road, the only time the 4 is
outclassed is in mud bogs where you floor it and hope you get through.
The rest of the time there is no great difference between the 4 and 6.
Gas mileage is almost the same, no advantage to the 4 cyl. The only real
case for the 6 cyl is highway driving. The CJ7 has the aerodynamics of a
brick, for highway cruising or freeway ramps, you really want the hp of
the 6 cyl.

John Norman wrote:
> I was wondering how good the 4 cylinder engines are in these jeeps. Is
> it a good option for medium-core 4-wheeling on the cheap? I know the
> I6's are great (I used to have a Cherokee), but will the I4 be a good
> compromise with gas prices the way they are? Also how about the
> longevity factor. How many miles can one expect to get out of this
> engine?
>
> Thanks in Advance
> John

Re: 4 Cylinder Engines in CJ7
 

The 4 cyl and 6 cyl are both extremely durable engines. Both will run to
150k miles and up as long as they get decent maintenance and no serious
abuse (overheated or over reved) Off road, the only time the 4 is
outclassed is in mud bogs where you floor it and hope you get through.
The rest of the time there is no great difference between the 4 and 6.
Gas mileage is almost the same, no advantage to the 4 cyl. The only real
case for the 6 cyl is highway driving. The CJ7 has the aerodynamics of a
brick, for highway cruising or freeway ramps, you really want the hp of
the 6 cyl.

John Norman wrote:
> I was wondering how good the 4 cylinder engines are in these jeeps. Is
> it a good option for medium-core 4-wheeling on the cheap? I know the
> I6's are great (I used to have a Cherokee), but will the I4 be a good
> compromise with gas prices the way they are? Also how about the
> longevity factor. How many miles can one expect to get out of this
> engine?
>
> Thanks in Advance
> John

Re: 4 Cylinder Engines in CJ7
 

The 4 cyl and 6 cyl are both extremely durable engines. Both will run to
150k miles and up as long as they get decent maintenance and no serious
abuse (overheated or over reved) Off road, the only time the 4 is
outclassed is in mud bogs where you floor it and hope you get through.
The rest of the time there is no great difference between the 4 and 6.
Gas mileage is almost the same, no advantage to the 4 cyl. The only real
case for the 6 cyl is highway driving. The CJ7 has the aerodynamics of a
brick, for highway cruising or freeway ramps, you really want the hp of
the 6 cyl.

John Norman wrote:
> I was wondering how good the 4 cylinder engines are in these jeeps. Is
> it a good option for medium-core 4-wheeling on the cheap? I know the
> I6's are great (I used to have a Cherokee), but will the I4 be a good
> compromise with gas prices the way they are? Also how about the
> longevity factor. How many miles can one expect to get out of this
> engine?
>
> Thanks in Advance
> John

Re: 4 Cylinder Engines in CJ7
 

I can't believe you found a four cylinder still running in a CJ.
Usually they were all beaten to death trying to maintain traffic speeds.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

John Norman wrote:
>
> I was wondering how good the 4 cylinder engines are in these jeeps. Is
> it a good option for medium-core 4-wheeling on the cheap? I know the
> I6's are great (I used to have a Cherokee), but will the I4 be a good
> compromise with gas prices the way they are? Also how about the
> longevity factor. How many miles can one expect to get out of this
> engine?
>
> Thanks in Advance
> John

Re: 4 Cylinder Engines in CJ7
 

I can't believe you found a four cylinder still running in a CJ.
Usually they were all beaten to death trying to maintain traffic speeds.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

John Norman wrote:
>
> I was wondering how good the 4 cylinder engines are in these jeeps. Is
> it a good option for medium-core 4-wheeling on the cheap? I know the
> I6's are great (I used to have a Cherokee), but will the I4 be a good
> compromise with gas prices the way they are? Also how about the
> longevity factor. How many miles can one expect to get out of this
> engine?
>
> Thanks in Advance
> John

Re: 4 Cylinder Engines in CJ7
 

I can't believe you found a four cylinder still running in a CJ.
Usually they were all beaten to death trying to maintain traffic speeds.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

John Norman wrote:
>
> I was wondering how good the 4 cylinder engines are in these jeeps. Is
> it a good option for medium-core 4-wheeling on the cheap? I know the
> I6's are great (I used to have a Cherokee), but will the I4 be a good
> compromise with gas prices the way they are? Also how about the
> longevity factor. How many miles can one expect to get out of this
> engine?
>
> Thanks in Advance
> John

Re: 4 Cylinder Engines in CJ7
 

Afaik, the four cylinder is a GM offering, with the same bell housing
pattern as a small block Chevy or the 4.3 liter V6. The 5.7 liter fuel
injected small block is an ever better compromise. ;^)

The I4 isn't so great for highway use, just because of the horrible
aerodynamics that you can't get away from with a vehicle shaped like a
shoebox, but off road you may have some advantage, and the axle ratio should
be the sensible 4.11 that they mated with four cylinder engines.

Longevity will depend on what the engine has been through in the past, and
what you do once you get it. A compression test would be a good idea.

Earle

"John Norman" <Reply@ThruNewsgrp.com> wrote in message
news:q60vf29a2tuvrivj1cc1kavtn6n4v25seh@4ax.com...
> I was wondering how good the 4 cylinder engines are in these jeeps. Is
> it a good option for medium-core 4-wheeling on the cheap? I know the
> I6's are great (I used to have a Cherokee), but will the I4 be a good
> compromise with gas prices the way they are? Also how about the
> longevity factor. How many miles can one expect to get out of this
> engine?
>
> Thanks in Advance
> John

Re: 4 Cylinder Engines in CJ7
 

Afaik, the four cylinder is a GM offering, with the same bell housing
pattern as a small block Chevy or the 4.3 liter V6. The 5.7 liter fuel
injected small block is an ever better compromise. ;^)

The I4 isn't so great for highway use, just because of the horrible
aerodynamics that you can't get away from with a vehicle shaped like a
shoebox, but off road you may have some advantage, and the axle ratio should
be the sensible 4.11 that they mated with four cylinder engines.

Longevity will depend on what the engine has been through in the past, and
what you do once you get it. A compression test would be a good idea.

Earle

"John Norman" <Reply@ThruNewsgrp.com> wrote in message
news:q60vf29a2tuvrivj1cc1kavtn6n4v25seh@4ax.com...
> I was wondering how good the 4 cylinder engines are in these jeeps. Is
> it a good option for medium-core 4-wheeling on the cheap? I know the
> I6's are great (I used to have a Cherokee), but will the I4 be a good
> compromise with gas prices the way they are? Also how about the
> longevity factor. How many miles can one expect to get out of this
> engine?
>
> Thanks in Advance
> John

Re: 4 Cylinder Engines in CJ7
 

Afaik, the four cylinder is a GM offering, with the same bell housing
pattern as a small block Chevy or the 4.3 liter V6. The 5.7 liter fuel
injected small block is an ever better compromise. ;^)

The I4 isn't so great for highway use, just because of the horrible
aerodynamics that you can't get away from with a vehicle shaped like a
shoebox, but off road you may have some advantage, and the axle ratio should
be the sensible 4.11 that they mated with four cylinder engines.

Longevity will depend on what the engine has been through in the past, and
what you do once you get it. A compression test would be a good idea.

Earle

"John Norman" <Reply@ThruNewsgrp.com> wrote in message
news:q60vf29a2tuvrivj1cc1kavtn6n4v25seh@4ax.com...
> I was wondering how good the 4 cylinder engines are in these jeeps. Is
> it a good option for medium-core 4-wheeling on the cheap? I know the
> I6's are great (I used to have a Cherokee), but will the I4 be a good
> compromise with gas prices the way they are? Also how about the
> longevity factor. How many miles can one expect to get out of this
> engine?
>
> Thanks in Advance
> John