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Author Topic: Boa-4B Alloy sump sealer  (Read 2684 times)

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Offline scud

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Boa-4B Alloy sump sealer
« on: July 04, 2009, 10:24:25 AM »
as i understand it i need to use some kind of liquid sealer instead of a gasket to seal the sump on my boa engine that is using a 2.9 4x4 sump can anyone offer some pointers/advise for getting a good seal please ive heard it can be tricky and dont have time to try it 3 times before i get it right  




Offline littlegems4x4

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« Reply #1 on: July 04, 2009, 17:09:02 PM »
I use Loctite 5999 on my sump, it's used for sealing big JCB type stuff so it should do the job, ain't cheap though

Offline scud

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« Reply #2 on: July 05, 2009, 16:27:22 PM »
cheers mate will invest in some

Offline capri v8 driver

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« Reply #3 on: July 05, 2009, 19:01:02 PM »
i use contact glue and glue the gasket against the block. this way the gasket doesnt move and stays at its place.

you maybe laughing about it, and when someone told me this trick, i did. but it does work. no shifting gaskets anymore and leak free.
greetz Paul.

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Offline scud

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« Reply #4 on: July 06, 2009, 19:05:33 PM »
well if it works thats good enough , i may just try that since the guy who sold me the engine gave me a spare gasket

Offline turboshed

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« Reply #5 on: July 07, 2009, 13:39:02 PM »
i use a locite silicone sealant,you can get this from any halfords,black in colour.beware though you only need a very thin skim on the block.wipe the block face with thinners or brake cleaner,apply the sealant in a 1-2mm bead a 3rd in from the outer edge,then wipe it off with your finger so its wafer thin,if you put too much on it will squeeze out from either side of the sump and then end up in the oil pump! i have taken many a 2,9 4be engine apart and seen way too much sealant has been used.
xr4x4 twin dinky turbo, emerald k3 management,302bhp and 400ftlbs@21 psi

Offline littlegems4x4

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« Reply #6 on: July 07, 2009, 19:49:29 PM »
Funnily enough that's why my first TT engine blew up

Offline scud

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« Reply #7 on: July 07, 2009, 20:06:00 PM »
Quote from: turboshed
i use a locite silicone sealant,you can get this from any halfords,black in colour.beware though you only need a very thin skim on the block.wipe the block face with thinners or brake cleaner,apply the sealant in a 1-2mm bead a 3rd in from the outer edge,then wipe it off with your finger so its wafer thin,if you put too much on it will squeeze out from either side of the sump and then end up in the oil pump! i have taken many a 2,9 4be engine apart and seen way too much sealant has been used.


yeah that makes sense cheers, im assuming this is instead of a conventional gasket ?

oh and if it is without, are there inserts or something i should use for the curves where crank sits or does the sealer do it all ?

Offline littlegems4x4

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« Reply #8 on: July 07, 2009, 20:28:34 PM »
You get wedge shaped chock things that go in there, they only cost pence........

Oh and it is instead of a gasket yes
« Last Edit: July 07, 2009, 20:29:13 PM by littlegems4x4 »

Offline turboshed

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« Reply #9 on: July 07, 2009, 22:29:07 PM »
i forgot to mention as toby'd poited out,you'll need the end seals,ford sell these with the wedge's seperately but if you get an aftermarket 2wd rubber sump gasket you can just cut the 2 end seals off and these already have the wedge which pokes down the side of the end main caps.
xr4x4 twin dinky turbo, emerald k3 management,302bhp and 400ftlbs@21 psi

Offline scud

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« Reply #10 on: July 08, 2009, 17:27:31 PM »
excelent so this spare rubber gasket won't go completly to waste

 

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