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So after some tear down and inspection, my '94 F350 IDI Turbo Kcode has developed a cracked head, cavitation, and leaks just about everywhere. I'm thinking about a new engine but I was hoping somebody had some insight on trusted companies. Jasper? I don't really want to get a junkyard mystery and the truck IMO is totally worth saving, new tranny, solid drivetrain otherwise… Thanks for the ideas and help!!
There's some not-so-good stories here about those Jasper engines, I'd be hesitant there.
In fact, I think most rebuilds done for mass sale are probably suspect. You'd be better off, IMO, finding a local machine shop that you trust or has a good rep and have them rebuild yours at your guidance. That way you know what's inside when it's all together and that no shortcuts have been taken.
If you feel or find yours is beyond rebuild then buy a used one and rebuild it.
Curious about Jasper " junk " . I had ISSUES with them back in the 90's . However , I have had good luck with their products for the last 10 years or so . I just put a Jasper tranny in a Jeep yesterday . Most the Int. engines we install we source from them also . We get them complete , all fuel and turbo components installed . I would look at them for sure myself . Just my 2cent . By they way , we also use Grooms for some engines , Great track record with them .
they do not leave a lip in the cylinders when sleeving them. eventually the sleeve will drop making it seem like a head gasket blew.
they also have been known to just repair what was bad. i have seen blocks come back as a "fresh reman" with one new piston and 7 old.
and a mix on new and old bearings.
then there were the "complete reman" engines that were delivered with cracked heads.
after the one year contract was over jasper was told to take a hike and we went with a local machine shop.
Yea there is some pics floating around from Dave S where he had 3 bad ones in a row, the sleeves were falling. The third he pulled the heads before he even installed and they had slipped. Think of Jasper as an autozone rebuild. They fix whats broke and resell. Not necessarily a bad thing, but doesnt leave you with peace of mind
Yea there is some pics floating around from Dave S where he had 3 bad ones in a row, the sleeves were falling. The third he pulled the heads before he even installed and they had slipped. Think of Jasper as an autozone rebuild. They fix whats broke and resell. Not necessarily a bad thing, but doesnt leave you with peace of mind
I remember that pic, the sleeve was dropping and the motor was still on the pallet it was shipped on. I was looking for that pic and came across the post below; turned out not to be a Jasper, but some outfit called Reviva?
Originally Posted by Dave Sponaugle
Two years ago December I installed a Reviva reman turbo upgrade 7.3.
Blew three of them up, 2700, 9700 and 17,000 miles respectively.
They replaced them all under warranty and sent me a fourth engine.
I took it apart before I installed it and refused to install that motor since I found the same problems in an engine that had not even been unbolted from the shipping pallet yet.
After much haggling they bought me out.
I replaced that engine with a salvage yard engine with close to 200,000 miles on it by my guess, so that was engine number 4.
It lasted 5 months and something let the piston rotate in the cylinder, it had a six month warranty so I never got to open up the bottom end to see what broke. But they did replace the engine.
When I picked it up, it had been rebuilt recently looking at the amount of red silicone around all the gaskets. So much that I was figuring the oil pickup was full of silicone.
I decieded to rebuild it before it went in my truck.
After looking inside, the cam and lifters were new, but the rest had not been touched recently. It had at some point been bored 20 over, but that was some time ago looking at the cylinder wear.
So I bored it another 10 and went through everything.
Started by magnafluxing everything, it was all sound parts.
Replaced the valves, valve springs, rockers, pushrods, oil pump, bearings, pistons, rings, cam bearings, polished the crank, balanced the internals, milled the pistons down, installed head studs, new thermostat, replaced the turbo, new block heater, all the gaskets and seals, and painted everything with high temp ceramic paint. I added my 94 turbo IP and injectors and header wrap to every pipe I could figure out how to wrap and then soaked the wrap with ceramic paint.
So since this is the fifth engine in two and a half years, I hope I don't have to do this again for a while even though I am getting very good at swapping engines.
Now I have a 7 liter engine that has 19.5 to 1 compression that will be running over 20 PSI of boost when it gets broke in. That first 10 thousand miles is going to kill me, but I will manage to survive.
Learath, my turbo management computer is my very large right foot.(13 DD Mattahorn miners boots, steel toes, steel sole plates and metatarsel protection which is pronounce "very heavy right foot")
ram2miller, the turbo is painted with ceramic aluminum paint, 1200+ degree stuff.
Engine assembly is complete, now to insert it in the truck and get it fired up.
Saturday should be the day for smoke and smiles here in Nutter Fort.
I overhaul all my engines myself for the simple fact I know what is all in there. with a good machinist it's not that hard to do. If you can remove and install your engine, without having a bunch of extra parts. you can over haul it too.
I overhaul all my engines myself for the simple fact I know what is all in there. with a good machinist it's not that hard to do. If you can remove and install your engine, without having a bunch of extra parts. you can over haul it too.
Same here on my own projects . Business wise ? I use a builder . I let them stand behind their product . It gets pricey and complicated when selling an engine or tranny ....
I have worked for both auto zone. We thought the engines we junk, then one day we happen to sell two. We were surprised the difference in the two order numbers it was some where around 2000 which indicated that 2000 engines were sold between the two orders. Looking at our return rate vs number sold company wide it was real low. It like anything else there are bad ones that make it pass quality but how many are good
I have worked for both auto zone. We thought the engines we junk, then one day we happen to sell two. We were surprised the difference in the two order numbers it was some where around 2000 which indicated that 2000 engines were sold between the two orders. Looking at our return rate vs number sold company wide it was real low. It like anything else there are bad ones that make it pass quality but how many are good
I do not know who Auto Shack , Zone uses now , but , I did some reworks for them back about 96 or so .... They had an issue with the small block G M engine heads . Their builder had issues .