SanDiegoOverland
NAXJA Forum User
- Location
- San Diego
1992 xj laredo auto, np231 d30/d35
all stock
My truck recently started knocking, here's the rundown:
-good oil pressure
-slight blowby
-1 quart down after a month or two (I have a good rear main seal leak, tho)
-good power
-no other symptoms.
-Checked flexplate bolts, all tight, but locktited and re-torqued anyways. didn't change the sound.
-Engine oil is topped off, and not allowed to get low.
Here's what I'm thinking:
1. My truck was running cool for several months, due to a bad thermostat and a nice alum radiator. this probably meant lots of extra fuel dumped into the system...any direct correlation to a knocking (not tapping) noise?
2. Should I run this engine into the ground no matter what? or should I be looking around for a new motor?
3. Would any of you others, with a tight budget using your jeeps as daily drivers/sole vehicles see this a reason to sell and start over? I honestly don't have $300-500.00 to pay for a used motor, let alone a couple thousand to pay for a rebuild if that's what's required. I'd rather sell my rig for a fair price to someone who could take care of the problem if it ever became a real issue.
If I kept it, I'd honestly probably not do anthing extra for it, other than drive it gently like I have from the get-go. It might end up running for a really long time with whatever issue/non-issue it has.
I've read through lots of knocking threads where a cracked flexplate or bolts have been the trouble, but I honestly don't have time to pull the tranny to check the flexplate, nor do I have the funds to have someone do it. Thanks in advance for any insight.
Oh, and I have lots of tools and knowhow short of a full rebuild, and I do all my own work, so feel free to send me that way, if you know of a process that might help.
-Brian
all stock
My truck recently started knocking, here's the rundown:
-good oil pressure
-slight blowby
-1 quart down after a month or two (I have a good rear main seal leak, tho)
-good power
-no other symptoms.
-Checked flexplate bolts, all tight, but locktited and re-torqued anyways. didn't change the sound.
-Engine oil is topped off, and not allowed to get low.
Here's what I'm thinking:
1. My truck was running cool for several months, due to a bad thermostat and a nice alum radiator. this probably meant lots of extra fuel dumped into the system...any direct correlation to a knocking (not tapping) noise?
2. Should I run this engine into the ground no matter what? or should I be looking around for a new motor?
3. Would any of you others, with a tight budget using your jeeps as daily drivers/sole vehicles see this a reason to sell and start over? I honestly don't have $300-500.00 to pay for a used motor, let alone a couple thousand to pay for a rebuild if that's what's required. I'd rather sell my rig for a fair price to someone who could take care of the problem if it ever became a real issue.
If I kept it, I'd honestly probably not do anthing extra for it, other than drive it gently like I have from the get-go. It might end up running for a really long time with whatever issue/non-issue it has.
I've read through lots of knocking threads where a cracked flexplate or bolts have been the trouble, but I honestly don't have time to pull the tranny to check the flexplate, nor do I have the funds to have someone do it. Thanks in advance for any insight.
Oh, and I have lots of tools and knowhow short of a full rebuild, and I do all my own work, so feel free to send me that way, if you know of a process that might help.
-Brian