| [ Total Views: 703 | Total Replies: 8 | Thread Id: 99428 ] |
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 bugzla
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| posted on October 28th, 2012 at 07:03 PM |
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bolt in pulley & sand seal
pulley and sand seal do they work and seal or do you need to machine the case
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Craig Torrens
A.k.a.: Craig Torrens
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| posted on October 28th, 2012 at 07:04 PM |
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yep they work, and there's no need to machine the case. I have them on my motors and have had no probs at all.
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 matberry
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| posted on October 28th, 2012 at 07:10 PM |
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yep, I;ve fitted a few. No probs yet, I did hear someone calling them 'case wreckers', so maybe some have issues. I always make sure they are super
cleaned and glued and tight in the case. On Bluey's flogged 1915, the insert was loose in the case and needed to be shimmed. It has done around
5000km to date, sealed a very leaky engine.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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bugzla
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| posted on October 28th, 2012 at 07:27 PM |
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cool banana's for the xmas list then any kits to stay away from
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matberry
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| posted on October 28th, 2012 at 09:07 PM |
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MST is a better version as it has mounting tabs that you can use for small screws to positively secure the insert if necessary, and thier gear seems
better than average.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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bajachris88
A.k.a.: Chris Leete
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| posted on October 28th, 2012 at 10:35 PM |
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Stick clear of the EMPI one. i had the seal come loose in the slip-in style housing. made a hell of a mess. Smoke out the back in in the cabin on the
highway to warwick 2011 made me fear an engine bay fire  
Original VW style was for the crank pulley to not be sealed such that air would pass into the case, and vent out the vacuum of the stock breather. If
the vw engine is exposed often to excessive dust (eg. baja/buggy offroad), you could imagine where its going to go (eek!). However there was a point
to this breathing methodology to reprocess and combust any crankcase blowby and keep it out of the oil.
Bit more of a read here:
http://www.vw-resource.com/air_cleaner.html#crankcase
I slabbed a loctite equivalent but cheaper 'bearing retaining compound' to assist in holding the seal mount in place.
Word of warning, alot of sand seal kits are listed as having either 6 inch pulleys or don't say anything in regards to the diameter, excluding the
important fact that they are smaller diameter than stock crank pulleys (IE: Power pulleys). Of course, this reduces reduces fan speed due to pulley
ratio. Insist on 7inch stock diameter style pulley unless you specifically want the power pulley style for your application (Eg: deliberate higher
typical engine rpms than stock or short drive duration). And be aware you will need a specific 'sand seal' pulley without the oil slinger swirl, and
will need a longer crank pulley bolt.
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta! |
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bugzla
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| posted on October 28th, 2012 at 10:49 PM |
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thanks chris just been onto mst websight and it all looks good its in a manx and there is always huge amounts of dust here in townsville i want to
cover all bases before i get her fired up
cheers
stevo
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matberry
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| posted on October 28th, 2012 at 10:55 PM |
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Sorry mate, don't agree with that article. The spiral relies on a close tolerance to the case for effictive operation, I very much doubt there is
much air flow through the pulley scroll, the scroll grooves don't even go to the outside of the block (except on type three pulleys)
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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68AutoBug
A.k.a.: Lee Noonan
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| posted on October 29th, 2012 at 10:10 AM |
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I have heard that if the seaL LEAKS, it REALLY leaks bad
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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