Sounds like you turned your 4bt into a 2 stroke diesel. Hope you can get it back on the road for the party.
Target carrier (1 Viewer)
- Thread starter J Mack
- Start date
-
- Tags
- build build thread
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
- Thread starter
- #1,343
Just tried to contact the seller but the contact number is disconnected, something tells me I don't want to get involved with a wire him cash and he'll ship the crate sight unseen deal.
Thanks I appreciate the heads up.
Man, of all the luck. I know that exact Napa/Hardware/Grocery store you spent time at in Wells... they have come up with some pretty amazing solutions over the years. Fingers crossed your motor pulls through.
- Thread starter
- #1,346
Yea I haven't had the best 4BT luck but I'm having too much fun to care..
Every part was replaced with genuine Cummins parts whether they needed it or not before I put the 4BT in the pig so yes that was a Cummins water pump that failed with 13000 miles on it.
I've been keeping track of this build for quite a while. I cooked the journal bearing on the first turbo on the 4runner coming through Reno on my way back to Boise about 8 years ago. I so happened to hit Reno at 5:15 on a Thursday and found some decent traffic. This guy in a convertible Camaro got stuck behind me for a while and i'm pretty sure I helped rust proof the front of his car (along with the back of mine) by the way he looked at me when he finally could pass me.
Glad you made it home in one piece - it seems any trip I take has some story involved with it that makes a normal "boring" road trip more exciting.
Glad you made it home in one piece - it seems any trip I take has some story involved with it that makes a normal "boring" road trip more exciting.
- Thread starter
- #1,349
Wow I forgot exactly how many bolts and screws hold the front sheet metal on a pig, two days later I can start unbolting the engine…
Replacing or rebuilding Jim?
- Thread starter
- #1,351
The plan as of now is to get it out and see if the block is still standard bore then get it to the machine shop so they can start the required machine work. If this block is at or near max over bore then I need to hunt down another.
Either way I think I’ve settled on building a complete short block with new OEM Cummins parts and not taking any more chances on low mile engines for sale on the interwebs..
Bummer you had to pull it.
- Thread starter
- #1,353
Yea and the pity party I’m throwing myself isn’t helping but the thought of getting it back on the road and joining in on some of the events like cruise Moab or the pig party is motivating me to put my big boy pants back on and get to work..
That's what we like to hear. Look forward to driving around Moab with you guys again.
- Thread starter
- #1,355
Engine is out and damage assessment has started, looks like valves have made contact with the pistons on every cylinder so assuming new valves will be part of the rebuild.
Engine is going to the machine shop Monday to see exactly what the final damage report and $$$$.$$ is but pistons are standard bore so fingers crossed I can reuse the block..
Engine is going to the machine shop Monday to see exactly what the final damage report and $$$$.$$ is but pistons are standard bore so fingers crossed I can reuse the block..
I'm not familiar with the Cummins, but what do you think caused the valves to hit the pistons, wrong cam?
- Thread starter
- #1,357
Big cam + 4000 RPM + heavy right foot = $hitshow.
They make pistons with valve reliefs cut in them and I'm guessing I'll know more about them Monday..
They make pistons with valve reliefs cut in them and I'm guessing I'll know more about them Monday..
Stronger valve springs and drive with flip flops!
That was going to be my question, do you have the 60# valve springs?
- Thread starter
- #1,360
I had 60# springs and a Colt stage 2 cam, according to Colt that should have worked fine with stock pistons but as you can see from the pictures they were wrong. New pistons are getting fly cut .120” to avoid contact with the new valves. Unfortunately two of the pistons had stuck rings the wore into the cylinders .007” on one side and they are not sure it will clean with the .020” over so I’m stuck with going to the .040” pistons but it looks like they can save the block.
Still making the list of parts I need to order but so far it looks like I could buy two used low mile engines for what it’s going to cost to rebuild one correctly with all new parts
Still making the list of parts I need to order but so far it looks like I could buy two used low mile engines for what it’s going to cost to rebuild one correctly with all new parts
