671 blower HELP!!!
#11
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Originally Posted by kwkracing
lol, theres not much to replace in a blower. 4 bearings, 4 seals, some gaskets and aerobic sealer. AS long as the blower does not appear to be self destructing inside the clearances are probably close if someone had it apart. They are pretty simple. so is this a old detroit blower with weiand endplates? Can you upload a pic?
If the engine started smoking blue and the the enginge has no problems, its the seals. Seals can also be damaged when some one slides them on in a rebuild. If you bought it on ebay, i see plenty of people take a stock wore out blower apart, put it right back together and say its rebuilt. A wore out blower is still a good start .I guess if its leaking out the front cover, it would be hard for you to monitor the oil level in the blower. Is this a street car?
If the engine started smoking blue and the the enginge has no problems, its the seals. Seals can also be damaged when some one slides them on in a rebuild. If you bought it on ebay, i see plenty of people take a stock wore out blower apart, put it right back together and say its rebuilt. A wore out blower is still a good start .I guess if its leaking out the front cover, it would be hard for you to monitor the oil level in the blower. Is this a street car?
#12
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#13
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Originally Posted by kwkracing
#14
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You don't need a pressure relief in the front cover.
In fact, the worst thing you can do on a street blower IS have one.
Every time the blower goes into boost, if that case isn't pressurized, it is once the boost hits it.
When it gets pressurized, some fuel goes into the gear case. If you have a pressure release on the front, you release the pressure, and next time more fuel goes in when it hits boost again.
Rinse and repeat a few hundred cycles, and you've now contaminated your gear lube with fuel.
I tell anyone with a street blower to keep their hands off that pressure relief. They're hurting more than helping by continually removing pressure, unless they are frequently changing the gear lube out.
So, either leave it without a pressure relief, or put one in it and keep your hands off it.
In fact, the worst thing you can do on a street blower IS have one.
Every time the blower goes into boost, if that case isn't pressurized, it is once the boost hits it.
When it gets pressurized, some fuel goes into the gear case. If you have a pressure release on the front, you release the pressure, and next time more fuel goes in when it hits boost again.
Rinse and repeat a few hundred cycles, and you've now contaminated your gear lube with fuel.
I tell anyone with a street blower to keep their hands off that pressure relief. They're hurting more than helping by continually removing pressure, unless they are frequently changing the gear lube out.
So, either leave it without a pressure relief, or put one in it and keep your hands off it.
#15
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Originally Posted by kwkracing