ok, I finally was able to remove the burned #3 piston....it doesn't look good! I am wondering how long the engine will last even with the replacement one. :( I have half a dozen or so photos of the carnage, but can't post! Michael? or others? care to post for me?

oh! and Michael? looks like I may need to talk about that 4.2 after all in a short time! :(

y'all will understand when you see the photos...
(edit)Hey! I CAN attach images?) :cool2:
second edit) now the emages sent to red-x?????? confusing! OS? wazzup? every second time I look at the post, I can see them, than next time..not!
so removed to not et y'all bitching about teh red-x's
any idea? images can be seen at:

http://f1.pg.briefcase.yahoo.com/bc/androbus/lst?.dir=/Yahoo!+Photo+Album/Burned+Piston+in+rover+3.9+v-8&.order=&.view=l&.src=bc&.done=http%3a//f1.pg.briefcase.yahoo.com/

until I can get someone to upload I guess?

Paul

Paul, email me the photos I'll get them posted up... pm55@njit.edu

so...now you see..I thought it was just the upper edge of teh piston that was burned, but there is a biig hole burned through the side!! what would cause that? it burned right through the oil control ring and all...the other seven look fine from the top, but now am worried...


I was just going to replace the piston with the good one Pendy sent me, but now I see I need to replace the bearing caps(would prolly be stupiid not to do all while the pan is off, huh!) and guess may as well hone all eight bores.....so it I do that, maybe I really should spend that extra $ and install NEW rings in all...and...and! arrrgh! I shoulda bought the engine from Slade last year when all went to hell. the costs are adding up and I'll still have a 3.9....

what would you do?

uh! ...and I see there is no gasket on the pan, but just white? rtv-ish sealant? is this normal? what is the stuff? never seen white gastet sealant... I was going to use a stock gasket, but if it's better to use sealant? let me know your collective oppinions.

TomW? what occured to necessitate removal of the pan? I thought it had never been opened? to check residue in bottom? or??

paul (really jonsing for some time on the trail....any trail as long as it's dirt/rock and I'm finally driving one of these damn rovers!!! arrrgh!)

72 views and no comments?

Guys! I am surprised!

Not that I'll know the answer, but some details might help. What engine, year, mileage, any mods... any other known engine problems, photos of the damage.

Link to his photo album (http://f1.pg.briefcase.yahoo.com/androbus)

http://us.f1f.yahoofs.com/bc/4d861a58/bc/Yahoo!+Photo+Album/Burned+Piston+in+rover+3.9+v-8/burned+piston.jpg?bfJv9mABaCKIcbh8

http://us.f1f.yahoofs.com/bc/4d861a58/bc/Yahoo!+Photo+Album/Burned+Piston+in+rover+3.9+v-8/burned+cylinder.jpg?bfJv9mABtiyydAc0

Not that I'll know the answer, but some details might help. What engine, year, mileage, any mods... any other known engine problems, photos of the damage.

so I guess the photos are still not working(wondering if it's just I can see as I am signed into yahoo, so the yahoo hosted images show up for me??

This is a '95 disco with 9x,000 miles on a 3.9 (that did NOT have the bottom row of head bolts from factory), has been overheated many times as it went through blown radiator, than wateerpump six mos later, than expansion tank(yes, by than I knwe there was a blown head gasket) than second expansion tank...at this point I R&Red the heads...didn't notice the damage to the #3 piston at teh time, but may ahve missed it? am waiting for photos to get posted as the link isn't working?

Paul

Flaw in the parts. You will need a new sleeve (read pain in the ass), and new piston etc. There was either a flaw in teh sleeve, or a flaw in the rings. Regardless, you are better off wiht a new block, unless you want to bore and resleeve (read pain in the ass).

Or do a motor swap. Slap in a nice LS 1 while your in there. Or even a 300TDI

Flaw in the parts. You will need a new sleeve (read pain in the ass), and new piston etc. There was either a flaw in teh sleeve, or a flaw in the rings. Regardless, you are better off wiht a new block, unless you want to bore and resleeve (read pain in the ass).

Sleeve? why? what is seen in th photo is just melted/burned aluminum from piston on teh sleeve(I think!) or are you saying like it was mis-shapen at that point? I had assumed there was some sort of a flaw in teh piston or similar...



Or do a motor swap. Slap in a nice LS 1 while your in there. Or even a 300TDI
oh! would love to...but remember am in Kalifornia! :(
...and as I fould out when moving away from bay area......they do NOT pay well in Fresno, so money is tight(especially with two series to repair, and still finish up the rangie too)
after seeing teh fuel economy from Elisa's dad's chevy, I had started to seriously think about that, but.....do not have recources right now to do all that is needed while we are still in this damn apartment and my tools are all in storage..right now I am leaning towards just cleaning up/honing the bore, and installing fresh rod shells...but????
If I can get this to run fine for another year or so, I will at that time be in a place to replace the engine completely with whatever. I really want to get it back running and start putting all my energy into the S-IIA..and the S-III for now....but don't want it to just come all apart in another few thousand miles either.


Paul

#1

#2

#3

#4

#5

#6

Intake leak, clogged injector, lean running condition for some reason. Check the injector, seal it up, and put it back together. Or buy a Bosch block and be done with it.

JP

so...now you see..I thought it was just the upper edge of teh piston that was burned, but there is a biig hole burned through the side!! what would cause that? it burned right through the oil control ring and all...the other seven look fine from the top, but now am worried...


I was just going to replace the piston with the good one Pendy sent me, but now I see I need to replace the bearing caps(would prolly be stupiid not to do all while the pan is off, huh!) and guess may as well hone all eight bores.....so it I do that, maybe I really should spend that extra $ and install NEW rings in all...and...and! arrrgh! I shoulda bought the engine from Slade last year when all went to hell. the costs are adding up and I'll still have a 3.9....

what would you do?

uh! ...and I see there is no gasket on the pan, but just white? rtv-ish sealant? is this normal? what is the stuff? never seen white gastet sealant... I was going to use a stock gasket, but if it's better to use sealant? let me know your collective oppinions.

TomW? what occured to necessitate removal of the pan? I thought it had never been opened? to check residue in bottom? or??

paul (really jonsing for some time on the trail....any trail as long as it's dirt/rock and I'm finally driving one of these damn rovers!!! arrrgh!)

I never had the pan off, nor did the dealer AFAIK...
I can't recall *ANY* engine problems at all, ever... anything the dealer did was all the other doo-dad repairs ( sunroof ect )
when I sold you the rig ( for PARTS as stated in the selling docs 5 years ago... :flipoff2:, it really was folks!!!) I did have Murphy do a compression check... it was good on all cylinders... I actually paid him to do a whole bunch of stuff on the rig before you picked it up... I'll try to find the paperwork... but this woulda shown up I'd think

You obviously haven't been driving around for 5 years with a piston burned like that! I'm sure you would have burned oil by the gallon....:smokin:

I suspect this was a result of the metal head gasket you put in?
as for the pan gasket, I bet thats what came from the factory.

The rod bearing wore while trying to push the burned piston I bet

of course its all speculation....
TomW


Edit:

after thinking a bit, either murph or the dealer ( prolly murph ) sealed up the pan as it was seeping, I think he re-threaded a pan bolt also, as I was always retorqueing em to get the seeping to stop, but couldn't, and one was always loose in the threads a bit.

Nothing nefarious has ever happened to the engine/rig, you know about as much about its history as I do....well except for that incident with the trigger happy san jose cops.... but you've moved far away from their, so your prolly safe :laughing:

The bearing doesn't look THAT bad for 90K.

Throw a boneyard engine in it and drive it!

Pan gasket-I am still amazed that Right Stuff voodoo goo works as well as it does. FAR better than the cork I'd originally used in a recent boneyard transplant.

I never had the pan off, nor did the dealer AFAIK...
I can't recall *ANY* engine problems at all, ever... anything the dealer did was all the other doo-dad repairs ( sunroof ect )
when I sold you the rig ( for PARTS as stated in the selling docs 5 years ago... :flipoff2:, it really was folks!!!) I did have Murphy do a compression check... it was good on all cylinders... I actually paid him to do a whole bunch of stuff on the rig before you picked it up... I'll try to find the paperwork... but this woulda shown up I'd think

You obviously haven't been driving around for 5 years with a piston burned like that! I'm sure you would have burned oil by the gallon....:smokin:

Yeah! I still have that bill of sale for "a pile of parts that resemble a discovery!" haw haw! :D still happy with the deal, no worries Tom....It ran great even whem it was sucking down coolant before the screwed up head R&R...damn metal gaskets grrrrrr!



[/QUOTE]
I suspect this was a result of the metal head gasket you put in?
as for the pan gasket, I bet thats what came from the factory.
[/QUOTE]
Yeah! everyone agrees on that as I DO NOT recall any damage when they were off 200 miles before! I talked to BP friday, and they said the white sealant was factory as they stopped using gaskets for a while???



[/QUOTE]
The rod bearing wore while trying to push the burned piston I bet
of course its all speculation....
TomW
[/QUOTE]
uys? waddya think about that one? am still planning on installing new bearing caps, and honing all bores than just driving it? hmmm! ??



[/QUOTE]
Edit:
after thinking a bit, either murph or the dealer ( prolly murph ) sealed up the pan as it was seeping, I think he re-threaded a pan bolt also, as I was always retorqueing em to get the seeping to stop, but couldn't, and one was always loose in the threads a bit.
[/QUOTE]
I DID notice heli-coils on the holes! I was about to ask about that!

[/QUOTE]
Nothing nefarious has ever happened to the engine/rig, you know about as much about its history as I do....well except for that incident with the trigger happy san jose cops.... but you've moved far away from their, so your prolly safe :laughing: [/QUOTE]
don't recall THAT story! just the guys from the cement/gravel? plant cdhasing you dosn...

Paul

the latest....

Pendy??? What ws that piston you sent me from?????
It's not the same as mine. the "dish" in the top is much deeper, and the actual piston is a slight different size! think three? or four? thousandths wider or so..

so..now I am still in need of whatever the correct piston is for a '95 disco...was that a 4.0 piston? or??

on a good note, we finished the bushing replacement on teh rangie and it drives sooo much better now! :)


Paul

the latest....

Pendy??? What ws that piston you sent me from?????
It's not the same as mine. the "dish" in the top is much deeper, and the actual piston is a slight different size! think three? or four? thousandths wider or so..

so..now I am still in need of whatever the correct piston is for a '95 disco...was that a 4.0 piston? or??

on a good note, we finished the bushing replacement on teh rangie and it drives sooo much better now! :)


Paul

Oh well,
I wish that would have worked for you. It was out of a 93 RRC with high compression engine. 3.9 of course. I can make a few calls Monday and find the correct one if you still want to do the CB thing. Send me your address again.

Jim Pendleton

I have a shortblock in the corner of the the shop that the owner wants to sell. It's a 4.0, but I don't believe there are any holes in the pistons. :flipoff2:

The heads were toast, and the cam has some wear, but you'd want to put a 3.9 cam in it anyway.

Lemme know, I'll find out how much he wants for it and an idea on shipping.

Oh well,
I wish that would have worked for you. It was out of a 93 RRC with high compression engine. 3.9 of course. I can make a few calls Monday and find the correct one if you still want to do the CB thing. Send me your address again.

Jim Pendleton

high compression engine? but it has a deeper dish than the stock piston from the '95...
was this a 30 over piston? it miked out to be so...
I think I have one lined up, should know tomorrow,(by the way, will get teh shipping $$ to you right away, totally slipped my mind

but just in case...
my address is:
839 East Weldon Ave
Fresno, CA 93704

I have a shortblock in the corner of the the shop that the owner wants to sell. It's a 4.0, but I don't believe there are any holes in the pistons. :flipoff2:

The heads were toast, and the cam has some wear, but you'd want to put a 3.9 cam in it anyway.

Lemme know, I'll find out how much he wants for it and an idea on shipping.

well if the replacement piston thing doesn't work...I will be starting to look for somethng...will the 3.9 front cover bolt on? or do I need to change over to newer ignition etc if I go with a 4.0??

Paul

It can be done. Going from 14 CUx (in spite of my difficulties with it) to GEMS would be FAR more trouble than it's worth. You'd need a spacer for the harmonic dampener and swap the cam out of you 3.9 as the 4.0 cam does not have provisions to run the distributor.

Paul Androbus I was trying to remember your last name. Looked in your profile. Spooky. My b-day is 8-18-66' Guess I am a day older then you. Were you younger then all your classmates? Except for the ones that were held back a few grades like PTS.

I am gonna try to get a good used piston sent to you today with the part numbers you gave me.

JP

Paul Androbus I was trying to remember your last name. Looked in your profile. Spooky. My b-day is 8-18-66' Guess I am a day older then you. Were you younger then all your classmates? Except for the ones that were held back a few grades like PTS.

I am gonna try to get a good used piston sent to you today with the part numbers you gave me.

JP

Jim,
Thanks! really appreciate the help!

Yeah! I noticed that you are a day older a while back when glancing at your profile! figured I'd get shit for commenting on something like that! as we are supposed to be so damned serious and technical and all that shit, huh? :D
I don't remember now if I was younger than most of them..I know my friends were all older...hmmm! hard to remember something that happened over 20 years ago! damn! 20 year reunion...where's that invitation? maybe they don't want me there leaking 90-wt all over the parking lot? :grinpimp:

oh! and by the way...last name is Archibald......Androbus is the name I came up for when I start my business back up eventually, as P A Design wasn't as catchy...but not sure if it will change...
looking forward to hearing when a matching # piston will be on it's way! I guess for now I'll tear the intake/exhaust and head off the mercruiser 140 that is running in the series IIA and fab it all up into a single manifold and replace tha burned valve so I am at least making posative movement with one fo teh rovers for now...maybe it will be running before the disco?


paul