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Author Topic: 750 Cam chain adjuster - Something I think is a good idea  (Read 5219 times)

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Offline Don R

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Re: 750 Cam chain adjuster - Something I think is a good idea
« Reply #25 on: October 29, 2021, 07:58:04 AM »
 Good info. I cleaned up a grease coated chrome one this week, I had to put it in a vise to hold it while I broke the nut and bolt loose and was surprised when it operated smoothly.
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Offline slikwilli420

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Re: 750 Cam chain adjuster - Something I think is a good idea
« Reply #26 on: October 29, 2021, 08:01:50 AM »
Kenny at Cycle X has suggested tapping the back of the adjuster for an M8 bolt that will do 2 things, act as a plug to keep water out and to keep the chain adjusted properly in the event of the set bolt coming loose. It will also keep you from having to go wild overtightening the set bolt and jam nut.
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Offline madmtnmotors

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Re: 750 Cam chain adjuster - Something I think is a good idea
« Reply #27 on: October 29, 2021, 08:13:25 AM »
Quote from: slikwilli420 on October 29, 2021, 08:01:50 AM
Kenny at Cycle X has suggested tapping the back of the adjuster for an M8 bolt that will do 2 things, act as a plug to keep water out and to keep the chain adjusted properly in the event of the set bolt coming loose. It will also keep you from having to go wild overtightening the set bolt and jam nut.

I had never considered this. If you use a long enough bolt you could add a jam nut as well. This could also function like the manual adjusters I've seen for sale. Just be very careful not to overtighten!  :o
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Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

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Offline slikwilli420

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Re: 750 Cam chain adjuster - Something I think is a good idea
« Reply #28 on: October 29, 2021, 12:15:37 PM »
Quote from: madmtnmotors on October 29, 2021, 08:13:25 AM
Quote from: slikwilli420 on October 29, 2021, 08:01:50 AM
Kenny at Cycle X has suggested tapping the back of the adjuster for an M8 bolt that will do 2 things, act as a plug to keep water out and to keep the chain adjusted properly in the event of the set bolt coming loose. It will also keep you from having to go wild overtightening the set bolt and jam nut.

I had never considered this. If you use a long enough bolt you could add a jam nut as well. This could also function like the manual adjusters I've seen for sale. Just be very careful not to overtighten!  :o

Talk to Kenny about his thoughts on manual tensioners. He has convinced me to never use them. No one knows how tight is too tight and the stock one does a great job. I would use the bolt in the back as a stop, just barely touching the rod on the rubber foot to keep it from moving back, doing that only after the full adjustment procedure is done.
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All you gotta do is do what you gotta do.

Vintage Speed Parts Mashup: http://forums.sohc4.net/index.php?topic=133638.0
Rickman CR Parts Kit Refresh: http://forums.sohc4.net/index.php/topic,154837.0.html
AHRMA CB750 Racer: http://forums.sohc4.net/index.php/topic,158461.0.html
AHRMA Superbike Heavyweight Racer: http://forums.sohc4.net/index.php/topic,173120.0.html
'76F CB750 Patina Redemption: http://forums.sohc4.net/index.php/topic,174871.0.html

Offline madmtnmotors

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Re: 750 Cam chain adjuster - Something I think is a good idea
« Reply #29 on: October 29, 2021, 01:55:25 PM »
Quote from: slikwilli420 on October 29, 2021, 12:15:37 PM
Quote from: madmtnmotors on October 29, 2021, 08:13:25 AM
Quote from: slikwilli420 on October 29, 2021, 08:01:50 AM
Kenny at Cycle X has suggested tapping the back of the adjuster for an M8 bolt that will do 2 things, act as a plug to keep water out and to keep the chain adjusted properly in the event of the set bolt coming loose. It will also keep you from having to go wild overtightening the set bolt and jam nut.

Agreed. NO TOOLS WHEN TIGHTENING BACKER BOLT!

I had never considered this. If you use a long enough bolt you could add a jam nut as well. This could also function like the manual adjusters I've seen for sale. Just be very careful not to overtighten!  :o

Talk to Kenny about his thoughts on manual tensioners. He has convinced me to never use them. No one knows how tight is too tight and the stock one does a great job. I would use the bolt in the back as a stop, just barely touching the rod on the rubber foot to keep it from moving back, doing that only after the full adjustment procedure is done.
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TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline Whaleman

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Re: 750 Cam chain adjuster - Something I think is a good idea
« Reply #30 on: October 29, 2021, 03:32:30 PM »
I really don't think you need a back up bolt. Properly tightened it will not move. My little distributer rubber keeps all moisture out. I pull it off and give it a little WD40 squirt when I adjust it. Dan
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Offline newday777

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Re: 750 Cam chain adjuster - Something I think is a good idea
« Reply #31 on: December 01, 2023, 05:09:36 AM »
Quote from: Whaleman on October 29, 2021, 03:32:30 PM
I really don't think you need a back up bolt. Properly tightened it will not move. My little distributer rubber keeps all moisture out. I pull it off and give it a little WD40 squirt when I adjust it. Dan
Hey Dan are you still with us? I see in your profile you haven't been on since 12/21....
Thanks for posting this. A shameless bump for what should have been put in the tips section long ago....
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A
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