| [ Total Views: 927 | Total Replies: 16 | Thread Id: 76852 ] |
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 Anthiron
A.k.a.: Nicko McKay
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 posted on May 28th, 2009 at 03:10 PM |
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Bolt on rocker covers wont seal
Got some bolt on alluminium rocker covers from v force and put them on last nite.
all in all they seemed to be quite well made, everything matched up. but i cant seem to get them to seal, this morning when i came out to drive the
car (i had driven the car the night before a few times but had checked the after the first short drive and thought they were ok) and noticed a puddle
under each cover. so i pulled them off and cleaned everything up, put some new gasgets on them and put it all back together, got about 4ks on the
highway before i smelt burning oil. so i pulled over and it was just the drivers side cover, off it came again, cleaned up all the mating surfaces
and put it back on and drove into town. drivers side leaking again and passenger side weeping a little, took them off again and re fitted, they seem
to be leaking less now but are still leaking.
my stock covers never leaked but i wanted bolt ons in case the stock bail clips get knocked off.
any suggestions
nick
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom
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cb john
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| posted on May 28th, 2009 at 04:20 PM |
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Measure height of the post and fepth from the inner sealig face on the cover to the bottom of the seat and you'll know right away...and put the
straight edge across the covers...
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68AutoBug
A.k.a.: Lee Noonan
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| posted on May 28th, 2009 at 04:58 PM |
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Hi Nick
many of the aluminium tappet covers whether held on with bails or bolts/nuts etc... aren't cast too well
and need a sealant like permatex non hardening sealant to stop them leaking... the spring bails do lose their tension over the years and are supposed
to be replaced if they are too easy to take off...
at their correct tension they will never come off...
most aftermarket aluminium covers I have seen have many cast marks etc, which shouldn't be there when You are sealing against oil....
there are also aftermarket covers that need special seals too.... I've seen them on CIP1 or somewhere..
Do the covers you have , have the country they were made in on them...?? Taiwan PRC ??
I find most chinese made EMPI branded parts are rubbish..
they might look good in the packet... Most parts made in the USA are excellent quality...
best of luck
LEE
| Quote: | Originally
posted by Anthiron
Got some bolt on alluminium rocker covers from v force and put them on last nite.
all in all they seemed to be quite well made, everything matched up. but i cant seem to get them to seal, this morning when i came out to drive the
car (i had driven the car the night before a few times but had checked the after the first short drive and thought they were ok) and noticed a puddle
under each cover. so i pulled them off and cleaned everything up, put some new gasgets on them and put it all back together, got about 4ks on the
highway before i smelt burning oil. so i pulled over and it was just the drivers side cover, off it came again, cleaned up all the mating surfaces
and put it back on and drove into town. drivers side leaking again and passenger side weeping a little, took them off again and re fitted, they seem
to be leaking less now but are still leaking.
my stock covers never leaked but i wanted bolt ons in case the stock bail clips get knocked off.
any suggestions
nick
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- [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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type3lover
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| posted on May 28th, 2009 at 07:33 PM |
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G'day mate. I had a similar problem with a set like those once.
I found that a nice bead of blue rtv on the sealing face of the rocker covers did the trick.
I also used new standard gaskets and smeared them with a little grease on the side that contacts the head.
If your rockers are shimmed it might also be the cause due to the height of the threaded hex pieces that come in the kit?
Hope this helps. If not I'm sure others with more experience will get this sorted for ya!
.
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11CAB
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| posted on May 28th, 2009 at 08:04 PM |
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I'd go back to the originals. If you're worried about them coming off, weld a washer to the cover and ziptie the wire to the cover.
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Joel
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| posted on May 28th, 2009 at 08:26 PM |
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as type3lover said a decent bead of sealent on the rocker coverside and lightly oil the head side
i;ve always done it this way and it works well, no leaks
even plain old roofers silicon does the trick
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Anthiron
A.k.a.: Nicko McKay
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| posted on May 29th, 2009 at 02:50 PM |
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ok i tried some permatex on the sealing faces, we shall see how that goes, other wise ill try some silicone sealer, they are made in taiwan lee.
yeah ive been considering it 11cab, but i want to at least try with these first.
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom
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Joel
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| posted on May 29th, 2009 at 04:31 PM |
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| Quote: | Originally
posted by Anthiron
they are made in taiwan.
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thats the root of the problem but if the sealing surface is nice and clean with no dags or bad casting the and bolts are applying even tension you
will be able to get them to seal
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DavoBuggy 1641
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| posted on May 29th, 2009 at 06:26 PM |
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If the permatex doesn't work (which it should) then try loctite 501 flange sealant inside the rubber gasket and out, i use this and can't go
wrong!
cheers Dave!
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68AutoBug
A.k.a.: Lee Noonan
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 posted on May 29th, 2009 at 11:57 PM |
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I use the reuseable non cork gaskets and have them glued to the rocker covers with permatex no3..
I then coat the other surface of the gasket with thick chassis grease....
My bails are very strong..
Mine never leak....
if worse comes to worse...
You could try two gaskets???
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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shaihulud
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| posted on May 30th, 2009 at 09:09 AM |
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Generally speaking it's OK to use a sealant on the rocker cover side of the gasket, but if you use a goo, sealant, silicone, mastic etc., on the
engine side, it will cook on and will stick like the proverbial to a blanket.
You will have Hells' own job getting the covers off and then you will have to clean off the surface to be able to fit another gasket.
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beetleboyjeff
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| posted on May 30th, 2009 at 10:02 AM |
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I use 'roof & gutter' silicone on both sides of my gaskets all the time (I am a builder). They take a little to get them off (once you have the
knack though, it is easy), but the surface on the head is nearly always clean. If it isn't, it only takes a go with a scraper to clean it. I never
have leaks from around the tappet covers, and on 2 occasions over the years, have discovered one of the bails unclipped, but the tappet cover didn't
move or leak. I did have bolt on tappet covers at one stage, and often used to battle with small leaks around the bolts.
From your ole' mate Jeff
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VWCOOL
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| posted on May 30th, 2009 at 10:48 AM |
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... all this work for a freakin' pair of crappo rocker covers... 
Pay your debts, CxxT
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colin
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| posted on May 31st, 2009 at 05:20 PM |
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When you could use standard VW bails.
Cheers Col
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Craig Torrens
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| posted on May 31st, 2009 at 06:27 PM |
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bolt on work well
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ancientbugger
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| posted on May 31st, 2009 at 09:09 PM |
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Wow, what a thread over something like rocker covers!! I'd get bolt-ons for pretty but to me it's like adding 2 more spots for oil to leak from.
I've never had the spring clips ever get knocked off (I have a funny feeling that I shouldn't have said that) but it's not to say it won't happen
but with off road if you're bashing about wouldn't cast alloy covers get smashed or cracked just as easy as a clip getting knocked off without the
benefit off just being able to clip them back on? Just a thought.
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Anthiron
A.k.a.: Nicko McKay
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| posted on June 11th, 2009 at 10:30 AM |
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looks like some loctite blue silicon has done the trick, thanks for the tips guys.
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom
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