Please help.My Tranny blew.Questions about tranny/Main Seal.

[95EclipseGST]

Well my car is hard down again. I have to get answers on what happened. I kept losing oil for quite some time but never figured where it was coming from,due to lack of free time.Anyway i was driving under WOT and oil slung all underneath the car.Well i look under the car and its coming right from where the tranny meets the engine underneath by that aluminum shield. So i start the car up to see if it leaks anymore and it didnt.It only was seeming to leak under WOT. Well i baby the damn thing home and didnt lose any more oil ...BUT the closer i got to home my tranny started whining.So i thought maybe oil got in the clutch area or something.Well i get all teh way home and my freakin tranny gets louder and locks up on me. Well my question is that when i looked under the car after the big leak."IT WAS OIL" not tranny fluid.How in the hell could oil from what seemed to be the rear main seal have slung into or locked up my tranny. I dont know if these are extremely newbie questions but i did do the 6bolt swap by myself.Anyway Please give me some inputs.This is a new 6bolt so the rear main seal shouldnt have went bad.I dont understand.Is it possible that oil from a bad main seal COULD have done in my tranny? I am on an island in Italy and am screwed to try and get a tranny shipped here. I want to get a TRE or BM fully built one with LSD but i need some answers to these seemingly dumb questions.Thanks for your time...

 

[daveyfx]

As far as I know there's no way for oil coming from the rear main seal to actually make its way into your transmission. If it was leaking, it would likely start as a slow leak and then blow out all at once. Once that happens you're gonna burn up your main bearings pretty quickly.

 

[95EclipseGST]

Can a faulty rear main seal cause "slow" building of boost and loss of oil under boost?That was a big problem i had before the tranny blew also,along with eating oil like crazy.A quart a week. I want to make sure oil wasnt coming from anywhere else when i go tearing the car apart again. Where all else should i check?

 

[GTM]

Can a faulty rear main seal cause "slow" building of boost and loss of oil under boost?That was a big problem i had before the tranny blew also,along with eating oil like crazy.A quart a week. I want to make sure oil wasnt coming from anywhere else when i go tearing the car apart again. Where all else should i check?

Off the top I don't see any relationship between the seal and low boost. Certainly blow-by could cause excess pressure inside the engine and force it out any weak seal or gaskets.

I know 1G had a nasty habit of blowing the dipstick up and sometimes completely out onto the road when the engine was badly worn. This would then throw oil everywhere, check the dipstick is holding fine. Check oil filter and mount for tightness.

I also see no connection with tranny problems and engine oil leak unless you have crankwalk and a bad clutch disk spline.

Although a bit late you could maybe try to stick a pipe cleaner at the lowest part of the bellhousing but trapped between the splash plate. This will act like a wick and the oil will run down the pipe cleaner rather than spreading all over the everything.

Not being there I can't be much more specific. I don't know if you can attach the starter with the tranny off and start the car to see if oil is running down while it's running.

Keep us posted on any developments and progress.

Cheers,
GTM

 

[95EclipseGST]

"Molto difettoso" Thanks for asking.... If this WAS by mistake tranny fluid that blew out....or oil at first from main seal and then tranny fluid.When i take off the tranny, will i see a busted part of the bell housing etc? Is there a seal to check? I guess i will replace the Throw out bearing but am just thinkin of cleaning the clutch with brake fluid cause its a brand new 2600 clutch and Fidanza flywheel.Hopefully that will do the trick along with a fully built tranny with LSD. That and replacing the rear main seal, is there anything else i should inspect while in there? I dont want this happening again for a long time.Thanks for your help.

 

[GTM]

"Molto difettoso" Thanks for asking.... If this WAS by mistake tranny fluid that blew out....or oil at first from main seal and then tranny fluid.When i take off the tranny, will i see a busted part of the bell housing etc? Is there a seal to check? I guess i will replace the Throw out bearing but am just thinkin of cleaning the clutch with brake fluid cause its a brand new 2600 clutch and Fidanza flywheel.Hopefully that will do the trick along with a fully built tranny with LSD. That and replacing the rear main seal, is there anything else i should inspect while in there? I dont want this happening again for a long time.Thanks for your help.

Yes, car problems can get you down.

If the engine was not leaking yesterday then probably not today. To be on the safe side change both seals, you should see lots of oil being slung off the back side (closest to the engine) if it's the crank seal.

The transmission is hamburger and will take gears and bearings. If I understood you, it no longer moves the car forward, if it's locked in 2 gears at the same time you might have broken fork and fewer damaged parts. Wash everything, take the syncros completely apart if you have lots of metal floating in the oil. Examine all bearings for wear, needle rollers can be the hardest to determine if bad, if not expensive just replace. Check syncro especially 1st and 2nd and their matching faces. If you have used spares don't be afraid to mix and match for the best fit. You will really need to clean very well, install another magnet on the drain if it has one. The first damage you will see is probably the pilot (input shaft) hopefully it didn't take out the front part of the housing. Are parts available?

Where is La Madd? Piedmont region?

Cheers,
GTM

BTW do you see any Moto Guzzi Asti or Super Asti on the road?

 

[95EclipseGST]

Lamaddalena is the most northern part of Sardegna Italy in a cluster of islands. For one its gonna take at least a month ,if not three for something to get here. I need to just get the whole new tranny in one whack sent here. Is the crank seal the one behind the clutch? Also if i do get a new tranny.Would i use BG synchroshift OR is that for older trannies.I need to know whats the best stuff for a "new" built tranny. The crank only has 2 seals right? One behind flywheel and one on the other side at the lower timing belt area? I am just going to try and replace any seal while im in there but need to know which all ones to look for and get.Thanks

 

[GTM]

...

For one its gonna take at least a month ,if not three for something to get here. I need to just get the whole new tranny in one whack sent here. Is the crank seal the one behind the clutch? Also if i do get a new tranny.Would i use BG synchroshift OR is that for older trannies.I need to know whats the best stuff for a "new" built tranny. The crank only has 2 seals right? One behind flywheel and one on the other side at the lower timing belt area? I am just going to try and replace any seal while im in there but need to know which all ones to look for and get.Thanks

Got the location and significance.

If you can latch on to a new, rebuilt, or good used tranny that would save a lot of problems, some trannies are harder to work on than others and may require special tools. While being a semi-retired professional I'm not a DSM expert and haven't been inside one.

I can't advise on the "BG synchroshift" but you could make a new post with that as part of the title in the transmission section. If that doesn't get desired results I can send a general alarm to others such as myself.

Is there a particular area where you would like to search that would be to your advantage?... east coast, gulf, west coast?

As for the clutch disk you can repeated wash with gasoline or Stoddard solvent using fresh solvent each time. Use gasoline and set the disk on fire, this will draw any remaining oil out, do this a couple of times. Use an old brake pad or other rigid sanding block with 80 grit paper, go over both sides to take any glaze off. If there is no oil contamination then just sand. The pressure plate can be washed well and again sand, same with flywhee. If the disk is badly contaminated you just might be better off buying new and keept that as an emergency spare.

GTM
Captain (Ret) USSV Margin

Email if needed.

 

[95EclipseGST]

Thanks Captain, I am trying to get a tranny closest to the east coast for worldwide shipping to here.I might need to use a freight company etc. I will try those pointers on the clutch etc. I havent seen any motoguzzi or asti's. I havent been here long but the tourism is about to kick up and will probably see a lot of different things. Thanks again for your inputs.

 

[GTM]

I am trying to get a tranny closest to the east coast for worldwide shipping to here.I might need to use a freight company etc. I will try those pointers on the clutch etc. I havent seen any motoguzzi or asti's. I havent been here long but the tourism is about to kick up and will probably see a lot of different things. Thanks again for your inputs.

Ok, wasn't sure what methods of transportation would be available.

The Guzzi's were used by both the carabinieri & police for several decades. Real work horses but looking like some prehistoric construction. Single cylr horizontal mount, large external flywheel, has no valve cover, hairpin springs, and push rods. Very slow turning engine, classic thump thump thump at idle, if you hear it you won't even have to look for you will know. You can watch the valve mechanism going up and down... I was scrounging Lancia parts in northern Italy back in the 70's and found someone willing to sell 7 of them for $200. With 20/20 hind sight was a big mistake to not have bought them as an investment for movies etc.

People are marvelous, culture/history is fantastic, if opportunity visit the Ital-Swiss alps especially Lake Como and Lake Luguano. Read some of Hemmingway's accounts of his adventures with Lancia, great road for sports cars.

Let us know what you find when you pull it.

Cheers,
GTM