Britbike forum

Classic British SparesKlempf British PartsBaxter CycleBritBike Sponsor SteadfastCyclesThe Bonneville ShopLowbrow CustomsGirling Classic MotorcycleLucas Classic MotorcycleHepolite PistonsIndustrial tec supply Classic Bike Parts Cheshire

Upgrade Your membership! Premium Membership Gold Membership Vendor Membership

New Sponsor post
New FAQ post
Photos on private message
by Mal Marsden - 06/16/22 7:00 pm
Manuals on DVD - Buy 4 for 3
All 4 DVD Manual
Member Spotlight
Les P
Les P
.
Posts: 615
Joined: August 2014
ShoutChat
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Top Posters(30 Days)
reverb 74
Allan G 53
kevin 53
Top Likes Received (30 Days)
Cyborg 29
Newest Members
Mark Sharp, Ian Scotland UK, cherbini, grahamsmythe, Joe Santelik
12,157 Registered Users
Who's Online Now
8 members (R Moulding, Falcon_52, Doug P, Cyborg, slow learner, Brian Brown, L.A.B., JonnyD), 37 guests, and 17 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums35
Topics76,296
Posts772,439
Members12,157
Most Online151
May 8th, 2022
Previous Thread
Next Thread
Print Thread
#883259 06/18/22 7:07 pm
Joined: Sep 2021
Posts: 192
Likes: 8
D
DAMadd Offline OP
Britbike forum member
OP Offline
Britbike forum member
D
Joined: Sep 2021
Posts: 192
Likes: 8
Getting ready to put the head on the t150. Going by the parts and service manuals there should be 4 studs, 8 pillar bolts there's 9 pillar bolts, no studs. But seemingly no bolts the right size with the 3/8 thread. Do people just replace the studs with pillar bolts or just straight up 3/8 threaded head bolts??

9 isn't good admittedly I collected up the bolts on a cart next to the bike and maybe the PO had some on order or was planning to order. Any sage advice about where to get a head bolt set? Baxter cycle listed a t160 set as out of stock and the internet is yielding tons of t140 sets

Last edited by DAMadd; 06/18/22 7:08 pm.

65 TR6R 68A65T 69 B44VS. 74 T150V 19 Chieftain
British motorcycles on eBay
Joined: Sep 2021
Posts: 192
Likes: 8
D
DAMadd Offline OP
Britbike forum member
OP Offline
Britbike forum member
D
Joined: Sep 2021
Posts: 192
Likes: 8
Addendum: found a barrel with 4 studs and all pillar bolts on the mockup motor on the weird Rickman. So now the question is: use the studs with nuts (stock) or use 4 of the pillar bolts with shorter bolts as I assume the PO was going to?

Currently soaking the studs/pillar bolts of the extra barrel in wd40 probably get some penetrating oil and soak em for a few days longer before attempting removal (+heat)


65 TR6R 68A65T 69 B44VS. 74 T150V 19 Chieftain
Joined: Sep 2021
Posts: 192
Likes: 8
D
DAMadd Offline OP
Britbike forum member
OP Offline
Britbike forum member
D
Joined: Sep 2021
Posts: 192
Likes: 8
Just realized they're 5/16 24 grade 5 bolts. Not hard to find at all
Now just have to figure out stud vs pillar bolts


65 TR6R 68A65T 69 B44VS. 74 T150V 19 Chieftain
Joined: Jan 2004
Posts: 5,386
Likes: 166
D
Britbike forum member
Offline
Britbike forum member
D
Joined: Jan 2004
Posts: 5,386
Likes: 166
Stock bike? Had 4 studs in the outer corners and pillar bolts elsewhere. North frames typically used pillars all around. Two bolts had a threaded section above the hex for the head steady.
I would use grade 8.

Joined: Sep 2021
Posts: 192
Likes: 8
D
DAMadd Offline OP
Britbike forum member
OP Offline
Britbike forum member
D
Joined: Sep 2021
Posts: 192
Likes: 8
Thanks!, Stock frame, but studs are gone (but I can replace them with the ones from the extra barrel or pillar bolts). Have the head steady bolts the rest are a mishmosh of different sizes. I'll track down some grade 8's so the rest are uniform at least. Any word on those elephant foot adjusters?


65 TR6R 68A65T 69 B44VS. 74 T150V 19 Chieftain
Joined: Sep 2021
Posts: 192
Likes: 8
D
DAMadd Offline OP
Britbike forum member
OP Offline
Britbike forum member
D
Joined: Sep 2021
Posts: 192
Likes: 8
Also if anyone bothers to read a boring bolt thread, what's with the thick washers? I thought I saw a thread somewhere with an explanation and po has a mass of different washers lock washers and what I take to be the original thick washer/spacer on the head bolts

Last edited by DAMadd; 06/20/22 2:51 pm.

65 TR6R 68A65T 69 B44VS. 74 T150V 19 Chieftain
Joined: Oct 2008
Posts: 7,773
Likes: 268
Britbike forum member
Offline
Britbike forum member
Joined: Oct 2008
Posts: 7,773
Likes: 268
The parts book is not much help, so I had a look at my head. Of course, the washers on the studs are larger diameter, but they all appear to be the same thickness. I measure the ones on the studs to be about 0.08" thick installed.


It's not a bug, it's 'character.'

72 T120V cafe project "Mr. Jim"
72 T150V "Wotan"
92 BMW K100rs "Gustav"
Joined: Sep 2021
Posts: 192
Likes: 8
D
DAMadd Offline OP
Britbike forum member
OP Offline
Britbike forum member
D
Joined: Sep 2021
Posts: 192
Likes: 8
Yeah, the parts book has numbers but these are like an 1/8 inch thick and the bolts that don't have them have like 2 washers and a lock washer. Gonna hit a few vendor websites to see if the parts pics match anything I have.

Was at the Nutty co. (Local bolt vendor ) getting a bunch of the other head/ rocker bolts as described above, they had thick stainless washers that are close to the few thick washers so I grabbed those too


65 TR6R 68A65T 69 B44VS. 74 T150V 19 Chieftain
Joined: Oct 2008
Posts: 7,773
Likes: 268
Britbike forum member
Offline
Britbike forum member
Joined: Oct 2008
Posts: 7,773
Likes: 268
My washers are 50 years old and measured under tension. They might have been 1/8" thick when new?


It's not a bug, it's 'character.'

72 T120V cafe project "Mr. Jim"
72 T150V "Wotan"
92 BMW K100rs "Gustav"
Joined: Jan 2004
Posts: 5,386
Likes: 166
D
Britbike forum member
Offline
Britbike forum member
D
Joined: Jan 2004
Posts: 5,386
Likes: 166
The '72 parts book gives 0.078" thick for the 1/4" rockerbox bolts, 0.094" thick for the 5/16" bolts and 0.092" thick for the outer four 3/8" studs.

Joined: Sep 2021
Posts: 192
Likes: 8
D
DAMadd Offline OP
Britbike forum member
OP Offline
Britbike forum member
D
Joined: Sep 2021
Posts: 192
Likes: 8
74 book only lists the size of the1/4". Thanks. The ones that look most stock are 0.110 which is close for the 5/16 the rest are all over the place. Going to find some SS ones and get them all to a uniform thickness on the belt sander in the area of the 0.092-0.094 range. Probably not a big deal as the guy had 2 washers and a lock washer on some, but it'll make my brain feel better. Emailed you about the elephant foot adjusters to email I found in an thread about them. Thanks again


65 TR6R 68A65T 69 B44VS. 74 T150V 19 Chieftain

Moderated by  Tridentman 

Link Copied to Clipboard
British Cycle SupplyMorries PlaceKlempf British PartsBSA Unit SinglesPodtronicVintage MagazineBritBike SponsorBritish Tools & FastenersBritBike Sponsor






© 1996-2022 britbike.com
Powered by UBB.threads™ PHP Forum Software 7.7.5