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Old 01-23-2004, 08:13 PM   #1
NWHybrid
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Default Replacing front crank seal

I'm rebuilding a B18 for my civic and want to replace the front crank seal behind the crank timing pulley... what's the best way to get this out? the round seal.. do I need to remove the oil pump to do this correctly?

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Old 01-23-2004, 08:14 PM   #2
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Default Re: Replacing front crank seal (NWHybrid)

I believe you can get it out without taking that plate out. just be careful not to knick anything. if there is anything scratched/knicked, it will leak. I would just take that whole plate off, it'll be easier. Also, don't forget the new sealant. Good luck Click the image to open in full size.
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Old 01-23-2004, 08:15 PM   #3
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Default Re: Replacing front crank seal (NWHybrid)

If the oil pump is old or has a lot of miles on it, then just replace the oil pump.
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Old 01-23-2004, 08:22 PM   #4
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Default Re: Replacing front crank seal (IN VTEC)

no the crank is clean...
I've done small blocs before but never a 1.8

Sealant? You mean like rtv onhte outer edge tha touches the metal?

The oil pump has 65,000 on it.. stock LS block

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Old 01-23-2004, 08:52 PM   #5
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Default Re: Replacing front crank seal (NWHybrid)

yeah, you'll see where the old rtv sealant was. just scrape it off and redo it.
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Old 01-23-2004, 10:01 PM   #6
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Default Re: Replacing front crank seal (NWHybrid)

Personally, I'd just replace the oil pump. It already has a seal in it.
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Old 01-23-2004, 10:12 PM   #7
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Default Re: Replacing front crank seal (NWHybrid)

The oil pump has 65K, it's still breaking in!

The seal is real easy to replace if you've already got all the stuff in front of it off. The best (and quickest) technique i've found is to get a self tapping sheetmetal screw, screw it into the middle of the seal just enough to where it will not pull out when you pull on it, You can put the screw in anywhere around the seal just make sure you get it in the middle of the seal so you don't damage the pump of the crankshaft. You should then be able to work the seal out pretty easily. Put a thin layer of rtv around the new seal and some grease on the part of the seal that contacts the crank and work it in by hand. It shouldn't take more than 10 minutes tops. For all the haters, this does work, i've done it more than once, no metal shavings will get anywhere they're not supposed to, they should stay in the old seal if you are careful.
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Old 01-23-2004, 10:19 PM   #8
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Default Re: Replacing front crank seal (florduhdude)

just wanted to add, this goes for just about any application, if you are going to use some kind of "sealant" or silicone type gasket maker...go to your local honda garage and get some honda bond! It's the best thing man could have! lol Click the image to open in full size.
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2004, b18, b18b, civic, crank, crankshaft, front, gasket, honda, main, miata, replace, replacement, replacing, rtv, seal, speed

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