Topic: eBay oil pump kit

[Mitchell]

I was lookin on eBay earlier and saw a kit for a 750 oil pump (vital motorsport) with all the orings, springs, stopper, and seal, I was wondering if anyone has used one of these kits before? I'm about to put my 750 back together and was thinking about using this kit on a low milage oil pump I plan on using. Any helpful hints or suggestions on freshing an old oil pump would be appreciated also. thanks

[ekpent]

 Do you have a link, probably one made by a member here Elan that everybody thinks is a nice kit. You will be getting some feedback soon.

[Mitchell]

m.ebay.com/itm/Honda-CB750-oil-pump-rebuild-kit-SOHC-oring-stopper-seal-/162018691768?nav=SEARCH

[kmb69]

Sure looks like one of Elan's kits.

[markreimer]

It is. I just got mine. Excellent kit!


Sent from my iPhone using Tapatalk

[PeWe]

There is an old thread about oil pump restore.
You need this too
http://www.ebay.com/itm/1969-1978-Honda-CB750-oil-pump-sump-pickup-strainer-SCREEN-SOHC-/162055123874?hash=item25bb3cf3a2:g:10IAAOSwiYFXJOzo'

The screws holding the pump together will probably be a problem to remove. I had to drill the heads off. Use impact screw driver did not work for me since I did not want to hammer too much. Drill heads off is very safe and easy.

The 3 bolts with X-heads needed to get the heads drilled off. New M6 x 60mm countersunk allen. Grinded 2 mm off to 58mm. Still waiting for them when taking the photo. (Temporarily keeping it together with hex bolts)
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=111837901896&ru=http%3A%2F%2Fsearch.stores.ebay.co.uk%3A80%2Fsearch%2Fsearch.dll%3Fquery%3D111837901896%2B%26sid%3D542724630%26store%3DDigital-world-trading%26fp%3D0%26st%3D1%26fvi%3D1#ht_1427wt_1037

The pain somewhere is the inner oil seal that sit very hard. It must be removed by brutal force and not harming the alu housing.
http://forums.sohc4.net/index.php/topic,105097.msg1373396.html#msg1373396
http://forums.sohc4.net/index.php/topic,143857.msg1793861.html#msg1793861

http://forums.sohc4.net/index.php/topic,143857.msg1637043.html#msg1637043
I have used a small 1/8" ball dremel bit to cut several small indentations behind the seal. You can then push it out with a very small punch etc.

[Mitchell]

Thanks for the replys guys! Pewe I took the pump apart yesterday using a cordless impact driver, the screws came out quite easy with the cordless gun. thanks for the links as well they have helped me come up with a good game plan. I also dusted off hondamans book and did some reading



So I take it this is a worthy kit? Is it from the forum member Elan? I just didn't want to buy some eBay junk that would later come back to haunt me.

[flybox1]

That is the kit you want.  Yes it is from Elan.
Order with confidence.

[Mitchell]

Thanks guys!

[fantino]

There is an old thread about oil pump restore.
You need this too
http://www.ebay.com/itm/1969-1978-Honda-CB750-oil-pump-sump-pickup-strainer-SCREEN-SOHC-/162055123874?hash=item25bb3cf3a2:g:10IAAOSwiYFXJOzo'

The screws holding the pump together will probably be a problem to remove. I had to drill the heads off. Use impact screw driver did not work for me since I did not want to hammer too much. Drill heads off is very safe and easy.

The 3 bolts with X-heads needed to get the heads drilled off. New M6 x 60mm countersunk allen. Grinded 2 mm off to 58mm. Still waiting for them when taking the photo. (Temporarily keeping it together with hex bolts)
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=111837901896&ru=http%3A%2F%2Fsearch.stores.ebay.co.uk%3A80%2Fsearch%2Fsearch.dll%3Fquery%3D111837901896%2B%26sid%3D542724630%26store%3DDigital-world-trading%26fp%3D0%26st%3D1%26fvi%3D1#ht_1427wt_1037

The pain somewhere is the inner oil seal that sit very hard. It must be removed by brutal force and not harming the alu housing.
http://forums.sohc4.net/index.php/topic,105097.msg1373396.html#msg1373396
http://forums.sohc4.net/index.php/topic,143857.msg1793861.html#msg1793861

http://forums.sohc4.net/index.php/topic,143857.msg1637043.html#msg1637043
I have used a small 1/8" ball dremel bit to cut several small indentations behind the seal. You can then push it out with a very small punch etc.

Next time you have to remove those tough JIS flat-head screws, try using an electric cordless impact driver in reverse with the correct bit. I've found it to be WAY more effective than a hammer driven impact driver and doesn't require any risk of damage that swinging a hammer can cause. I honestly couldn't believe how effective it was the first time I tried it out.

[PeWe]

Yes, not correct bit/screwdriver is usually the problem with the X heads.
Always wrong type and drilling machine will be next step.