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ZJ Engine overhaul questions
My 97 ZJ needs an engine overhaul--has a cracked ring (or worse). I'm
debating my options. Pulling the engine, overhauling it myself, and putting it back is out--with the engine out of the Jeep I wouldn't have any way to get the block to the machine shop. So I'm debating whether to (a) get a rebuilt long-block and put it in and be done with it or (b) get a junkyard engine, rebuild that, and put it in, or (c) get a junkyard engine, put it in, rebuild the existing engine, and swap it back. (d) get a beater pickup truck and use it to haul the block to the machine shop and back and once the job is done sell the beater. Before I spend money I figured I'd see what others thought of the options. -- -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) |
Re: ZJ Engine overhaul questions
J. Clarke wrote:
> My 97 ZJ needs an engine overhaul--has a cracked ring (or worse). I'm > debating my options. Pulling the engine, overhauling it myself, and > putting it back is out--with the engine out of the Jeep I wouldn't > have any way to get the block to the machine shop. So I'm debating > whether to what makes you think it has a cracked ring? Just wondering because the valve springs on that year had some failure issues. > (a) get a rebuilt long-block and put it in and be done with it or > (b) get a junkyard engine, rebuild that, and put it in, or > (c) get a junkyard engine, put it in, rebuild the existing engine, and > swap it back. > (d) get a beater pickup truck and use it to haul the block to the > machine shop and back and once the job is done sell the beater. > > Before I spend money I figured I'd see what others thought of the > options. FWIW, SHORT BLOCK, All Models - 4.0L - 4.0L 97-98 $1,903.50 Includes: Block With Pistons, Rings, Pins, Rods, Main Bearings, Crankshaft, Camshaft Bearings, Timing Gears And Timing Chain. SHORT BLOCK, 5.9L - 5.2L, 5.9L - 5.2L, 5.9L 97-98 $1,964.25 Includes: Cylinder Block With Pistons & Rings, Crankshaft, Connecting Rods & Bearings. no core charges, and that's from chryslerpartsdirect.com, OEM. -- DougW |
Re: ZJ Engine overhaul questions
J. Clarke wrote:
> My 97 ZJ needs an engine overhaul--has a cracked ring (or worse). I'm > debating my options. Pulling the engine, overhauling it myself, and > putting it back is out--with the engine out of the Jeep I wouldn't > have any way to get the block to the machine shop. So I'm debating > whether to what makes you think it has a cracked ring? Just wondering because the valve springs on that year had some failure issues. > (a) get a rebuilt long-block and put it in and be done with it or > (b) get a junkyard engine, rebuild that, and put it in, or > (c) get a junkyard engine, put it in, rebuild the existing engine, and > swap it back. > (d) get a beater pickup truck and use it to haul the block to the > machine shop and back and once the job is done sell the beater. > > Before I spend money I figured I'd see what others thought of the > options. FWIW, SHORT BLOCK, All Models - 4.0L - 4.0L 97-98 $1,903.50 Includes: Block With Pistons, Rings, Pins, Rods, Main Bearings, Crankshaft, Camshaft Bearings, Timing Gears And Timing Chain. SHORT BLOCK, 5.9L - 5.2L, 5.9L - 5.2L, 5.9L 97-98 $1,964.25 Includes: Cylinder Block With Pistons & Rings, Crankshaft, Connecting Rods & Bearings. no core charges, and that's from chryslerpartsdirect.com, OEM. -- DougW |
Re: ZJ Engine overhaul questions
J. Clarke wrote:
> My 97 ZJ needs an engine overhaul--has a cracked ring (or worse). I'm > debating my options. Pulling the engine, overhauling it myself, and > putting it back is out--with the engine out of the Jeep I wouldn't > have any way to get the block to the machine shop. So I'm debating > whether to what makes you think it has a cracked ring? Just wondering because the valve springs on that year had some failure issues. > (a) get a rebuilt long-block and put it in and be done with it or > (b) get a junkyard engine, rebuild that, and put it in, or > (c) get a junkyard engine, put it in, rebuild the existing engine, and > swap it back. > (d) get a beater pickup truck and use it to haul the block to the > machine shop and back and once the job is done sell the beater. > > Before I spend money I figured I'd see what others thought of the > options. FWIW, SHORT BLOCK, All Models - 4.0L - 4.0L 97-98 $1,903.50 Includes: Block With Pistons, Rings, Pins, Rods, Main Bearings, Crankshaft, Camshaft Bearings, Timing Gears And Timing Chain. SHORT BLOCK, 5.9L - 5.2L, 5.9L - 5.2L, 5.9L 97-98 $1,964.25 Includes: Cylinder Block With Pistons & Rings, Crankshaft, Connecting Rods & Bearings. no core charges, and that's from chryslerpartsdirect.com, OEM. -- DougW |
Re: ZJ Engine overhaul questions
J. Clarke wrote:
> My 97 ZJ needs an engine overhaul--has a cracked ring (or worse). I'm > debating my options. Pulling the engine, overhauling it myself, and > putting it back is out--with the engine out of the Jeep I wouldn't > have any way to get the block to the machine shop. So I'm debating > whether to what makes you think it has a cracked ring? Just wondering because the valve springs on that year had some failure issues. > (a) get a rebuilt long-block and put it in and be done with it or > (b) get a junkyard engine, rebuild that, and put it in, or > (c) get a junkyard engine, put it in, rebuild the existing engine, and > swap it back. > (d) get a beater pickup truck and use it to haul the block to the > machine shop and back and once the job is done sell the beater. > > Before I spend money I figured I'd see what others thought of the > options. FWIW, SHORT BLOCK, All Models - 4.0L - 4.0L 97-98 $1,903.50 Includes: Block With Pistons, Rings, Pins, Rods, Main Bearings, Crankshaft, Camshaft Bearings, Timing Gears And Timing Chain. SHORT BLOCK, 5.9L - 5.2L, 5.9L - 5.2L, 5.9L 97-98 $1,964.25 Includes: Cylinder Block With Pistons & Rings, Crankshaft, Connecting Rods & Bearings. no core charges, and that's from chryslerpartsdirect.com, OEM. -- DougW |
Re: ZJ Engine overhaul questions
J. Clarke wrote:
> My 97 ZJ needs an engine overhaul--has a cracked ring (or worse). I'm > debating my options. Pulling the engine, overhauling it myself, and > putting it back is out--with the engine out of the Jeep I wouldn't > have any way to get the block to the machine shop. So I'm debating > whether to > > (a) get a rebuilt long-block and put it in and be done with it or > (b) get a junkyard engine, rebuild that, and put it in, or > (c) get a junkyard engine, put it in, rebuild the existing engine, and > swap it back. > (d) get a beater pickup truck and use it to haul the block to the > machine shop and back and once the job is done sell the beater. > > Before I spend money I figured I'd see what others thought of the > options. > If you have the time and a place to do it I'd go with "a", it's probably the quickest, easiest way to go about it. Unless you are a bit of a masochist you really want to avoid changing th engine twice! Another option if it has a 4.0 engine is to see if you can find a good junkyard engine, especially if you live in the rust belt that might be a good option, and the cheapest one. Jeff DeWitt |
Re: ZJ Engine overhaul questions
J. Clarke wrote:
> My 97 ZJ needs an engine overhaul--has a cracked ring (or worse). I'm > debating my options. Pulling the engine, overhauling it myself, and > putting it back is out--with the engine out of the Jeep I wouldn't > have any way to get the block to the machine shop. So I'm debating > whether to > > (a) get a rebuilt long-block and put it in and be done with it or > (b) get a junkyard engine, rebuild that, and put it in, or > (c) get a junkyard engine, put it in, rebuild the existing engine, and > swap it back. > (d) get a beater pickup truck and use it to haul the block to the > machine shop and back and once the job is done sell the beater. > > Before I spend money I figured I'd see what others thought of the > options. > If you have the time and a place to do it I'd go with "a", it's probably the quickest, easiest way to go about it. Unless you are a bit of a masochist you really want to avoid changing th engine twice! Another option if it has a 4.0 engine is to see if you can find a good junkyard engine, especially if you live in the rust belt that might be a good option, and the cheapest one. Jeff DeWitt |
Re: ZJ Engine overhaul questions
J. Clarke wrote:
> My 97 ZJ needs an engine overhaul--has a cracked ring (or worse). I'm > debating my options. Pulling the engine, overhauling it myself, and > putting it back is out--with the engine out of the Jeep I wouldn't > have any way to get the block to the machine shop. So I'm debating > whether to > > (a) get a rebuilt long-block and put it in and be done with it or > (b) get a junkyard engine, rebuild that, and put it in, or > (c) get a junkyard engine, put it in, rebuild the existing engine, and > swap it back. > (d) get a beater pickup truck and use it to haul the block to the > machine shop and back and once the job is done sell the beater. > > Before I spend money I figured I'd see what others thought of the > options. > If you have the time and a place to do it I'd go with "a", it's probably the quickest, easiest way to go about it. Unless you are a bit of a masochist you really want to avoid changing th engine twice! Another option if it has a 4.0 engine is to see if you can find a good junkyard engine, especially if you live in the rust belt that might be a good option, and the cheapest one. Jeff DeWitt |
Re: ZJ Engine overhaul questions
J. Clarke wrote:
> My 97 ZJ needs an engine overhaul--has a cracked ring (or worse). I'm > debating my options. Pulling the engine, overhauling it myself, and > putting it back is out--with the engine out of the Jeep I wouldn't > have any way to get the block to the machine shop. So I'm debating > whether to > > (a) get a rebuilt long-block and put it in and be done with it or > (b) get a junkyard engine, rebuild that, and put it in, or > (c) get a junkyard engine, put it in, rebuild the existing engine, and > swap it back. > (d) get a beater pickup truck and use it to haul the block to the > machine shop and back and once the job is done sell the beater. > > Before I spend money I figured I'd see what others thought of the > options. > If you have the time and a place to do it I'd go with "a", it's probably the quickest, easiest way to go about it. Unless you are a bit of a masochist you really want to avoid changing th engine twice! Another option if it has a 4.0 engine is to see if you can find a good junkyard engine, especially if you live in the rust belt that might be a good option, and the cheapest one. Jeff DeWitt |
Re: ZJ Engine overhaul questions
DougW wrote:
> J. Clarke wrote: >> My 97 ZJ needs an engine overhaul--has a cracked ring (or worse). >> I'm debating my options. Pulling the engine, overhauling it >> myself, >> and putting it back is out--with the engine out of the Jeep I >> wouldn't have any way to get the block to the machine shop. So I'm >> debating whether to > > what makes you think it has a cracked ring? Just wondering because > the valve springs on that year had some failure issues. Symptoms are (1) one and only one plug is getting oil-fouled regularly, (2) low compression on that cylinder, (3) engine is using a lot of oil, (4) blows small amount of blue smoke. >> (a) get a rebuilt long-block and put it in and be done with it or >> (b) get a junkyard engine, rebuild that, and put it in, or >> (c) get a junkyard engine, put it in, rebuild the existing engine, >> and swap it back. >> (d) get a beater pickup truck and use it to haul the block to the >> machine shop and back and once the job is done sell the beater. >> >> Before I spend money I figured I'd see what others thought of the >> options. > > FWIW, > > SHORT BLOCK, All Models - 4.0L - 4.0L 97-98 $1,903.50 > Includes: Block With Pistons, Rings, Pins, Rods, Main Bearings, > Crankshaft, Camshaft Bearings, Timing Gears And Timing Chain. > > SHORT BLOCK, 5.9L - 5.2L, 5.9L - 5.2L, 5.9L 97-98 $1,964.25 > Includes: Cylinder Block With Pistons & Rings, Crankshaft, > Connecting Rods & Bearings. > > no core charges, and that's from chryslerpartsdirect.com, OEM. Good to know. I'm a little hesitant about a short block--the engine was run oil-starved for a while (don't ask) and I'm betting that the valve guides aren't pretty. Could do the top overhaul but that would mean more downtime. -- -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) |
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