The Spares Company
Club Shop/Regalia
Parent Website
Contact Officials
Machine Registrar
Club Secretary
Membership Secretaries
MPH Editor and Forum Administrator.
Section Newsletters
Technical Databases
Photos
Home
What's new
Latest activity
Forums
New posts
What's new
New posts
Latest activity
Information
Bike Modifications
Machine Data Services
Manufacturers Manuals
Spare Parts Listings
Technical Diagrams
Whitakerpedia (Vincent Wiki)
The Club
MPH Material Archive
Flogger's Corner
Obituaries
VOC Sections
Local Sections
Local Section Newsletters
Miscellaneous
Club Assets
Club History
Club Rules
Machine Data Services
Meeting Documents
Miscellaneous
Essential Reading
Magazine/Newspaper Articles/Letters
Adverts and Sales Brochures
The Mighty Garage Videos
Bikes For Sale (Spares Company)
Log in
Register
What's new
New posts
Menu
Log in
Register
Install the app
Install
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Leak down test
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Monkeypants" data-source="post: 125551" data-attributes="member: 2708"><p>Are the stem seals only at 1000 miles as well?</p><p>The seals in my OZ bike are at roughly 60,000 and could use replacement now. They were good until recently but have now started to let oil through when above 4000 rpm. These are different seals to those sold by the Spares Co.</p><p>I pulled the heads to fix a loose exhaust valve guide at about the 52k mark. There wasn't a whole lot of carbon in there, even with a few thousand miles running too rich with worn out carbs.</p><p>Also took the 1360 engine apart at 1500 miles, all clean in there barely any signs of combustion on the piston tops.</p><p>Those are a different seal type again, Terry's seals. I should ask him about that! Have the numbers for the D Smith/J McDougall seals but not the T Prince ones, which Bill must have.</p><p>Terry puts seals on the exhaust as well. Doesn't seem necessary as the Vincents here on the West coast are using intake only seals and it works just fine.</p><p>When the top end was fairly new I used 8 ounces of oil going to California and back, 2700 miles.</p><p>Thats better than the 1 Imperial gallon per 1500 miles as considered normal oil consumption in 1950 ( Riders Handbook)</p><p></p><p>Glen</p></blockquote><p></p>
[QUOTE="Monkeypants, post: 125551, member: 2708"] Are the stem seals only at 1000 miles as well? The seals in my OZ bike are at roughly 60,000 and could use replacement now. They were good until recently but have now started to let oil through when above 4000 rpm. These are different seals to those sold by the Spares Co. I pulled the heads to fix a loose exhaust valve guide at about the 52k mark. There wasn't a whole lot of carbon in there, even with a few thousand miles running too rich with worn out carbs. Also took the 1360 engine apart at 1500 miles, all clean in there barely any signs of combustion on the piston tops. Those are a different seal type again, Terry's seals. I should ask him about that! Have the numbers for the D Smith/J McDougall seals but not the T Prince ones, which Bill must have. Terry puts seals on the exhaust as well. Doesn't seem necessary as the Vincents here on the West coast are using intake only seals and it works just fine. When the top end was fairly new I used 8 ounces of oil going to California and back, 2700 miles. Thats better than the 1 Imperial gallon per 1500 miles as considered normal oil consumption in 1950 ( Riders Handbook) Glen [/QUOTE]
Insert quotes…
Verification
What was Mr Irving's Christian Name?
Post reply
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Leak down test
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top