| [ Total Views: 1176 | Total Replies: 23 | Thread Id: 91862 ] |
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 muzz
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| posted on July 30th, 2011 at 10:43 AM |
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HELP...! Some idiot used Stag on my engine case.
Need some advice.
Had to split the case on the 1500/1775 motor cause of blown rear seal. Came to the oil pump and found that the hex screws holding it on were
absolutely soaked in what i thought was Locktite. Anyhow after cutting flat
screwdriver slots in them and messing around for 2 hours my friend said he had a hammer screwdriver -after pounding the hell out of the screws they
eventually came out.
On to splitting the case. When I split my 1600 it fell apart as soon as I hit it with a rubber mallet.On this motor I could slightly split the pulley
end but not the flywheel end.
I took out almost every single bolt that i could.using two nuts. Some of the smaller nuts just rounded off because off tons of goo that was on them.
Still unable to split the case I soaked the fly end in everything for a week -nothing. A friend turned up and he said he reckoned becasue the goo was
orange, that the genius who built the motor had used a product called STAG,a joining compound and the only way to get it off was to heat it which i
did as much as as I dared because of the flammable mag case...Nothing!
So I made a case splitter using a scissors jack between 2 pieces of wood and using the motor to trans bolts. I put a ton of pressure on it using heat
at the same time -nothing!.I cannot beleive that anyone in their right mind would use stag on a mag block because it's so brittle for starters. And
this guy is a professional VW bulder in the ACT area.
Just wondering if any ideas on how to seperate this case.I am gonna try soaking some metho this pm, but thats the end of the line. Can't find
anything on the internet re removing this stuff.I will check with a plumber friend when he gets home because they use stag as well. I am told.
Any ideas let me know quick -i may have aleady warped the case I dont know as yet until actually split the freakin thing,which I am going back to
have another go at.It's only taken 2 weeks already.
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MickH
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| posted on July 30th, 2011 at 12:09 PM |
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Why are you splitting the case to replace the seal???
tssnq.com.au
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muzz
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| posted on July 30th, 2011 at 01:47 PM |
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Actually I am not but while the motor was out I wanted to check if any damage had been done to the rear main bearing plus do few other checks because
she had racked up a few miles.If the case had split like it should have this could all be done in a day.
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Craig Torrens
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| posted on July 30th, 2011 at 05:24 PM |
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you sure you have ALL case nuts undone ?
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grumble
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| posted on July 30th, 2011 at 05:56 PM |
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| Quote: | Originally
posted by Craig Torrens
you sure you have ALL case nuts undone ?
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It is unusual for even Stag to hold on this well,holden used to use it on their head studs and a lot of mechanics used it on everything. Check for a
hidden bolt or nut.
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VolksVair
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| posted on July 30th, 2011 at 06:20 PM |
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Have a good look, best have a 13mm socket on a 12 inch extension and look really really hard, maybe clean some crud and have another good look
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h
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| posted on July 30th, 2011 at 06:38 PM |
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I got a jack hammer u can borrow if u need it 
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grumble
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| posted on July 30th, 2011 at 07:43 PM |
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| Quote: | Originally
posted by VolksVair
Have a good look, best have a 13mm socket on a 12 inch extension and look really really hard, maybe clean some crud and have another good look
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Possibly the bolt from the opposite side or the one near the flywheel flange.Also sorry to tell you that to check for main bearing
damage to the case the bearing will move in the bore,this can be checked with a screwdriver or in extreme cases just move the crank fore and aft and
watch the bearing.
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muzz
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| posted on July 31st, 2011 at 07:56 AM |
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Believe me there are no nuts holding this case together,and my friend who owned a garage for many and is ex NRMA has checked it out. Also he case is
easy to inspect because it is really clean.No crud at all. And as i said i have even removed most of the case bolts themselves which were extremely
hard to remove.
I should have been alerted when the flywheel had come off and I found that the were was Locktite on the gland nut. I had to get`a workshop to remove
it.
I was told by a bikie that this Stag is used on bike engine cases sometimes.He is a chemical engineer and he said he won't use it because it does dry
hard as a rock and using a jack will only break the case.He was the one to tell me to soak it in metho. which I will do.
I think I will be buying a new case somehow, so this Stag will cost me well over $1000 and even more
time.http://forums.aussieveedubbers.com/images/smilies/grind.gif
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muzz
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| posted on July 31st, 2011 at 08:02 AM |
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Yeah grumble I already checked the end play and while still in tolerance, the bearing can still be chewed a little, so why not open the case rather
that putting it all back in and then having to remove it again because a major problem develops from a damaged bearing? As I said if the freakin case
had split like it should - No problemo!
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hellbugged
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| posted on July 31st, 2011 at 08:34 AM |
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no fun here for sure.......yeah double triple check the case bolts/nuts......couple hard to spot
i've found carb cleaner to break down sealants well when cleaning up. not sure on something of this strength tho, worth a try
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shokwave2
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| posted on July 31st, 2011 at 09:33 AM |
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Will acetone eat away the case? If not, try acetone on the stag. We use it at work to clean up spilt resins, and hardeners and it eats away everything
pretty much, except most metals.
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muzz
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| posted on July 31st, 2011 at 09:43 AM |
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Used about a can of carb cleaner. Acetone I haven't tried-that's really nasty dangerous stuff but it could be an option. I will try and contact the
stag manufacturer next week and see what they say.
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shokwave2
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| posted on July 31st, 2011 at 09:53 AM |
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I'm pretty sure acetone would get that crap off for you, it's just a question if it will react with the case or not. We make resin capsules at work
which are used to hold up mine walls and roofs. It's tough stuff when hardened and acetone cleans it up if we spill some and hardens on the floor and
machinery.
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muzz
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| posted on July 31st, 2011 at 10:55 AM |
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Yeah thanx for thate guys ,i will have to swipe some of the little woman nail polish remover. Just read that brake fluid is also deadly on
sealants.The one big problem with all this stuff is getting the stuff to penetrate because the mating surfaces are so close together.
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ian.mezz
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| posted on July 31st, 2011 at 11:27 AM |
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Good luck, sounds like you are making a bit of work for your self.
years ago The stag that I used on cars was only a sealer not a lock tight?????
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vwjon
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| posted on July 31st, 2011 at 01:11 PM |
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have you undone the 6 nuts between the cylinders? they are on the right side of the block as you look at the front of the motor.
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grumble
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| posted on July 31st, 2011 at 01:14 PM |
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A silly question but did you ask the engine builder how to split the case since he used the stag? I find it hard to believe a professional vw engine
builder would use the stuff since there are a lot of better more reliable sealants available.Cheers and good luck. Les
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muzz
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| posted on July 31st, 2011 at 04:20 PM |
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Yeah i took out not only the bolts and the washers which can also hold things up but the case bolts as well.There are quite a few types of Stag. This
stuff was orange and it was laden on every bolt in the case. Anyhow I have the case separated now.I went for broke and applied a little more
pressure on the jack and for the first time it has open opened about 5mm. Too tired to deal with it any more today. Re the builder - I actually never
knew his name because I bought the motor off someone else and he told me the motor was built professionally in the ACT area. This is my 6th. air
cooled motor and I have never experienced anything like this before and hopefully never will again.Thanks for all help.
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 Bizarre
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| posted on July 31st, 2011 at 05:03 PM |
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| Quote: | Originally
posted by muzz
- I actually never knew his name because I bought the motor off someone else and he told me the motor was built professionally in the ACT area. .
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mmmmmm................ NEVER trust anyone selling a motor that says it was built but a professional 
Futue te ipsum!!!
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VolksVair
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| posted on July 31st, 2011 at 07:09 PM |
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All my life I have used "Permatex Aviation gasket glue, "Non Hardening" expands & contracts as alloy motors go hot & cold, great
between case halves
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grumble
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| posted on July 31st, 2011 at 07:27 PM |
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| Quote: | Originally
posted by VolksVair
All my life I have used "Permatex Aviation gasket glue, "Non Hardening" expands & contracts as alloy motors go hot & cold, great
between case halves
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The old Permatex No 3 or the genuine Vw sealant ,no problems. I thought I had seen most of the possibilities but apparently not.
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muzz
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| posted on August 1st, 2011 at 08:19 AM |
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Yeah I agree Permatex aviation is really good. Incidentally besides using a hammer screwdriver on the oil pump cover I had to drill out the small bolt
near the # 4 cylinder because it had so much Stag on it with a hex head nut - brilliant!
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muzz
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| posted on August 1st, 2011 at 09:15 AM |
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Just one more point -the guy who sold me the motor is absolutely honest . I do know that the motor was built by a full time "professionall " but
just how professional he was is a matter of opinion.
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