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Looks like that “quick clean, fix and reinstall” has turned into a big dent in the wallet. I’ve only seen that kind of turbine damage on a pulling truck that eat itself from the inside out. AKA dropped a valve then tried to pass it..... hope you can get her back together without it costing too much
WOW..., hate to see that, Shawn.
The turbine side (hot) and compressor side (cold) is what I've always heard.
thanks tony... i hated to see it too... took a hammer just to get the 2 halfs apart on the turbine side... (last time i had it apart they just came apart once the band clamp was off).. this time it took a hammer... when i got it off and i saw the impeller i was like WTH??!?! all the vanes were stuck in position even without the unison ring... got them all out but one of them took the post with it... so now that part is totaled... and the unison ring was stuck to the housing... took a chisel and the 5 lb mini sledge to get it broken loose.. and it was a fight the whole way off...
Originally Posted by MAKO314
Looks like that “quick clean, fix and reinstall” has turned into a big dent in the wallet. I’ve only seen that kind of turbine damage on a pulling truck that eat itself from the inside out. AKA dropped a valve then tried to pass it..... hope you can get her back together without it costing too much
im hoping nothing got "cooked" in the engine after seeing that...
I’m going step out on a limb here and say I personally believe that the turbine was destroyed by one or more of those VG vanes either coming lose or turning beyond their limit. If something big enough to do that kind of damage came through the engine you would definitely have more symptoms than just a sluggish engine. I may be wrong but my money is on the VG vanes causing the damage. You can probably do a compression test and tell if there’s any internal engine damage.
when i pulled it apart the vanes werent close to the impeller.... the damage to the vanes and the impeller look to me more like they "melted" from the heat... i really need to get some EGT gauges and install them... might be something i just need to bite the bullet on while its apart right now...
when i pulled it apart the vanes werent close to the impeller.... the damage to the vanes and the impeller look to me more like they "melted" from the heat... i really need to get some EGT gauges and install them... might be something i just need to bite the bullet on while its apart right now...
not doubting your guess but I have to say that if the heat got hot enough to melt the impeller, man your pistons would be trashed. They are aluminum and would melt a whole lot sooner than that impeller not to mention the shape of the injector nozzles. I’m seriously hoping for your sake it’s nothing that nasty. Yes I agree you seriously need a preturbo pyrometer especially if you’re running any kind of fuel adding or timing advance tunes. Do you still have a muffler or cat? If so pull it and see if anything may have gotten trapped in it. The damage on the vanes and the impeller looks to me by these pics that there was contact with something or impeller to vane. Wish you lived closer I’d let you pull that thing in our shop.
not doubting your guess but I have to say that if the heat got hot enough to melt the impeller, man your pistons would be trashed. They are aluminum and would melt a whole lot sooner than that impeller not to mention the shape of the injector nozzles. I’m seriously hoping for your sake it’s nothing that nasty. Yes I agree you seriously need a preturbo pyrometer especially if you’re running any kind of fuel adding or timing advance tunes. Do you still have a muffler or cat? If so pull it and see if anything may have gotten trapped in it. The damage on the vanes and the impeller looks to me by these pics that there was contact with something or impeller to vane. Wish you lived closer I’d let you pull that thing in our shop.
its sitting outside with the turbo off... drive up you can have fun crawling on the ground with me lol... bring the big pete lol... its got a street tune in here... been leary of running the "performance" tune thats in it.. last time i tried pulling the exhaust apart it wouldnt come apart... (was trying to get it apart to do some welding on it... but ended up doing it with it in place...).. still has what theyre calling a cat but is supposedly a particulate filter... (pre-regen and def fluid thing)... and the muffler... been wanting to straight pipe it but was waiting for something to rot out...
found a couple companies that sell rebuild kits for the turbine side.. but its like 400-500$ which at that point i could just buy a whole new stock turbo for little bit more... the other reason i dont think the turbine hit any of the vanes is it still spun freely, but also none of the tips of the vanes are messed up... just the faces where the heat distorted them... the fins on the turbine wheel you can see the distortion where the heat caused it to warp...
the heat is kinda why i worry if the pistons got hurt too... really wish i could find the oil leak its had.... making a mess of the cross member...
2nd, anyone running a larger 70s F series truck? Thinking it's F500+ (I'm still learning about F100-F350s so my ignorance is assumed) as I know of a junk-yard with a cab and front end+motor (possibly 390 or not, just going from the chassis ID plate)
I thought I'd pop in here about my slow progress on my truck.
Front clip off, engine out, a good steam cleaning (more hidden horrors) and some judicial welding of patches later I'm nearly ready to start doing something...
302 stripped down to assess and I find some nice big triangular pieces or metal in the sump. On further inspection I locate 3 missing 'skirts' on 3 pistons. It almost looks like the skirts contacted the crank at some point, I can think of no other possible explanation. Junkyard engine strip happening soon to hopefully get 3x pistons and I'll have to look at all the posts I saw about heads and consider whether to change the heads over for something else.
2nd, anyone running a larger 70s F series truck? Thinking it's F500+ (I'm still learning about F100-F350s so my ignorance is assumed) as I know of a junk-yard with a cab and front end+motor (possibly 390 or not, just going from the chassis ID plate)
All I can tell you is that I bought a 70 F600 cab for parts. The cab, doors are the same as the F100-300. The difference is in the cab mounts, which can be changed (according to a friend who said he did that a couple of times)
Might want to look into a car 302 with EFI (86-91) they have a roller cam, and can be converted to a carb easily. A 351W, would bolt in, just sits a little higher so the exhaust might have to be tweaked a bit. The 302 intake manifold will not fit the 351 W.
I'm thinking I've got a late 80s 302 sat in my local LKQ which if they were having a 40% discount on any-time before April I'd have sat in my yard now.
I got the doors and hood (having confirmation from NumberDummy and Others that they would indeed fit) from it and likely would have had the cab entirely if I hadn't already patched mine. I can see daylight spots through the floor of it but it was still in better condition than mine.
The cab internals are very good condition and the front brightwork is near immaculate.
Last edited by Ug666; Feb 5, 2019 at 08:33 AM.
Reason: forgot a photo
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, hate to see that, Shawn.
lol... its got a street tune in here... been leary of running the "performance" tune thats in it.. last time i tried pulling the exhaust apart it wouldnt come apart... (was trying to get it apart to do some welding on it... but ended up doing it with it in place...).. still has what theyre calling a cat but is supposedly a particulate filter... (pre-regen and def fluid thing)... and the muffler... been wanting to straight pipe it but was waiting for something to rot out...
