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Originally Posted by Fiat48 But I do like to throw a couple 3/8" bolts on the floor of Morg's boat...then watch as he tries to figure out where they came from. Keeps him busy.
........I just saw this and can picture John ........."LMAO"
thanks for the offer but i talked to the machine shop and we are just going to go with the single 1/4" keyway.
I have a blower hub and 2 keys cut in.
i am still not ready to sell the boat even though its been 31/2 years since i got the boat i have only had it out a couple of times with the n/a 468 in it. i have been getting parts together for the blower engine as money allowed me. i traded parts for the machine work being done. now i only need to get the carbs rebuilt and what misc. brackets needed to install it in the boat. hope to meet you guys tomorrow.
Originally Posted by slotracer i bought a dc 8-71 blower and now am finally getting around to building the engine i brought the pulley to the shop to get everything balanced and there is only one keyway. so it sounds like i will be all right then. do i make the keyway 1/4" or is it that size already? its on a bbc See....I missed that. You said one keyway. I wish I could blame this on Infomaniac or something but I just blew right over that post. My bad.
But...now armed with all this information on blower hubs and keyways you can tell others and confuse them...which was our mission in the beginning.
Then be damn hard for you to get it on wrong. And it isn't a BDS. But...that said....I am sure you will have to 1/4" key over the existing 3/16 key slot on the crank. Your machinest will know. Any questions...bring it to CFW.
the hub i have only has 1 keyway
Look at the picture. It has 2 keys...180 apart. Click on the item for a bigger picture.
Infomaniac post "Yea if you have an external balance hub with a counterweight, and there are 2 1/4 keys. The counterweight on the hub lines up with the counterweight on the crank."
One other thing:
If you want to know if the main saddles are straight in that block you are going to use.....then bring the block (bare) to CFW and I will bring my bar and check it for you. You have to let me know tho...cause I do not pack that thing around.
but if the crank only has one keyway and the hub has one it should be the only way right?
It is easy done...because if using one keway....you can put the hub on 180 out. It will fit either way. You do it the wrong way and the motor is out of balance....big time. The hub goes on so that the counterweight part...is on the same side as the counterweight on the crank.
In essence....you are "fooling" the crankshaft into thinking it's counterweight is heavier than it is. I hope that kinda explains it....rounda bout.
I'll be there but my boat will not. Morgs boat won't be there either. We have to tow through snow and sand on roads and it is not worth it for a one day deal.
well hopefully i can meet you this year. last time i was there i saw your boat but someone said you were out and about. how could someone put the pulley on wrong?
Will be at CFW. Morg went to new store...I think he did some work out there. I haven't been yet.
That is the counterweighted hub used for external balance cranks. Just be sure you put it on EVERYTIME in the right direction...as Info told you about. They work good single key.....ran them for years and years with blown alcohol power.
its the same as the bds-110c. Fiat48 are you going to be at cfw nyd ? have you been to the new caballia sporting goods store yet?
Never said I wasn't mean.
The hub sounds right. Yeah the weight is only on "one side".
You can see some hubs here: http://www.goodvibesracing.com/BDS_CrankHubs.htm