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Old 11-17-2017, 10:23 PM   #1
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Just turned 100K is it worth fixing?

Just ending an almost 10K California to Maine and back trip. The odometer just turned 100K and I got a low water light. Added a gallon of distilled water and made it to the last rv park before being home. Looking over the engine closely and I find I have developed the infamous Cummins 5.9 ISB block casting #53 cracked block. Called my mechanic and he say if it is a cracked block it's a toast. No fix. Replace the block. So I'm looking at $12,500 to $25K+ for the fix. It's a 1998 HR Endeavor 37 CDS. NADA says it worth $20-25K. Is it worth fixing?
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Old 11-17-2017, 10:28 PM   #2
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I'd look around for a remanufactured 5.9 on eBay. Seen several for under $10k
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Old 11-17-2017, 10:31 PM   #3
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I think only you can make that call.
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Old 11-17-2017, 10:41 PM   #4
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I thoight they could drill, tap and install plugs in the block?
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Old 11-17-2017, 11:05 PM   #5
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I thoight they could drill, tap and install plugs in the block?
Hmmmm, I have welded up several blocks, but never did have complete success.... Might be $$ ahead to just use it as trading stock "as is" for a replacement coach, ie; if they give you $10k trade in vs $15k to $25k for repairs(parts & labor) on a $20k coach...
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Old 11-17-2017, 11:33 PM   #6
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Just turned 100K is it worth fixing?

Of course itís worth fixing. It would give you many more miles of enjoyment even if it fails again in another 100k which I doubt
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Old 11-18-2017, 01:55 AM   #7
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Quote:
Originally Posted by WesPearson View Post
Just ending an almost 10K California to Maine and back trip. The odometer just turned 100K and I got a low water light. Added a gallon of distilled water and made it to the last rv park before being home. Looking over the engine closely and I find I have developed the infamous Cummins 5.9 ISB block casting #53 cracked block. Called my mechanic and he say if it is a cracked block it's a toast. No fix. Replace the block. So I'm looking at $12,500 to $25K+ for the fix. It's a 1998 HR Endeavor 37 CDS. NADA says it worth $20-25K. Is it worth fixing?
I did an internet search and found this
12 Valve Cummins Engine | eBay
1996 Cummins 5.9L 6BT Diesel Engine For Sale CPL 1815 Fully Mechanical Fuel Pump

  • $4,000.00
It seems that you are familiar enough with Cummins to know that the B5.9 12V
is legendary among diesel heads. And I think that it should be bolt-compatable with your transmission.

Good luck !!!
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Old 11-18-2017, 06:16 AM   #8
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If it were mine.

It wouldn't even be a question.

Get er fixed.
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Old 11-18-2017, 06:26 AM   #9
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No, go ahead and spend anywhere from $50K to $300K to keep the wife happy.
Go deeper into debt.
Stay home because you have less money.
Only you can prevent an unhappy wife.

LoL
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Old 11-18-2017, 10:00 AM   #10
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Quote:
Originally Posted by Randm Musing View Post
I did an internet search and found this
12 Valve Cummins Engine | eBay
1996 Cummins 5.9L 6BT Diesel Engine For Sale CPL 1815 Fully Mechanical Fuel Pump

  • $4,000.00
It seems that you are familiar enough with Cummins to know that the B5.9 12V
is legendary among diesel heads. And I think that it should be bolt-compatable with your transmission.

Good luck !!!
What is the difference between a B5.9 12v and 5.9L BT?

With my serial #, I've seen my 5.9 referenced as a B and BT.

Also, when I was researching RV's I read about the block 53 issues on ISB's.. that block issue doesn't apply to 1995 B5.9 12V, correct?

.
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Old 11-18-2017, 04:34 PM   #11
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Quote:
Originally Posted by WesPearson View Post
Just ending an almost 10K California to Maine and back trip. The odometer just turned 100K and I got a low water light. Added a gallon of distilled water and made it to the last rv park before being home. Looking over the engine closely and I find I have developed the infamous Cummins 5.9 ISB block casting #53 cracked block. Called my mechanic and he say if it is a cracked block it's a toast. No fix. Replace the block. So I'm looking at $12,500 to $25K+ for the fix. It's a 1998 HR Endeavor 37 CDS. NADA says it worth $20-25K. Is it worth fixing?
He said "if" - now if's in my world are not facts. Did you see a crack and have you verified the casting.
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Old 11-18-2017, 04:42 PM   #12
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I think only you can make that call.
I've seen a 53 block welded, but it isn't just grab a welder and burn metal. The entire block must be clean, prepared to be welded, then pre-heated, then welded before it begins to cool; otherwise the stress created in the block will cause it to crack again.
Were it I, I would contact Jasper rebuilt engines for pricing, and make sure it was NOT a 53 block.
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Old 11-18-2017, 08:22 PM   #13
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Several years ago a friend of mine ran his dodge truck in a field getting up hay and run temp up to 255 (according to the computer). I can't remember what caused the temp to go up but he didn't notice temp til to late. This was at about 125,000 miles. It had the 53 block as well. Running it hot caused a small crack in the block near the exhaust headers. It was in a very hard to get to area. My dad welded his whole life and was certified in about every possible way. He told my buddy he can fix that. He gas a lift in his shop so he was able to raise the truck and get to it from the bottom. It took him about 2 days to completely weld the crack because he had to do a very small spot then let it cool before he could any more. I'm not certain how he welded, or maybe braised it. Seems like he may of said he had to heat it as well before he could weld also. After the fix he drove the truck a couple more years and traded it with 225,000 miles on it and still did not leak.

Point of this is it can be welded if done correctly and last. However, the cost maybe depending upon how bad the crack is may not be worth trying to fix. Best of Luck.

Chad
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Old 11-18-2017, 08:53 PM   #14
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You might want to check out
LOCK-N-STITCH

I saw it on Jay Leno's Garage. He used it on some no longer available blocks. I did a quick look to check the spelling and saw a lot of hits. No idea on cost or practicality. If you check it out please let us know what you found out.
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