-
Hey Guest!
British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!**Upgrade Now**
(PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Valve adjustment
- Thread starter Ray Smith
- Start date
Share this page
Keoke,
My BJ7 has an aluminum valve cover. No factory cover when I purchased the vehicle.
The moss spec page indicates that the BJ7 and BJ8 had the 15 thousand clearance. Perhaps this setting applies to the later BJ7's that had the 2 inch carbs and a different cam profile.
Any thouughts?
Ray
My BJ7 has an aluminum valve cover. No factory cover when I purchased the vehicle.
The moss spec page indicates that the BJ7 and BJ8 had the 15 thousand clearance. Perhaps this setting applies to the later BJ7's that had the 2 inch carbs and a different cam profile.
Any thouughts?
Ray
tahoe healey
Yoda
Offline
My BJ8 valve cover says .012 cold. Usually this discussion is about "hot" or "cold". You can look on previous post history for some very interesting discussions.I think .015 is wrong. You may also want to call Moss and discuss it with them. They have good tech support. (use their toll free number in their cataloge)
Offline
Ray,
Here is a previous discussion on the subject:
https://www.britishcarforum.com/ubbthread...=true#Post88202
To add a bit.
The BN1, BN2's had no tags but the shop manual recommended .012 cold.
The 100M cam recommended .015 cold.
The BN4, BN6, BN7, & BT7 had a riveted brass plate which had .012 hot.
The BT7 & early BJ8 had a riveted brass plate that said .012 hot.
The later BJ8's had an aluminum riveted tag that said .012 cold.
The last BJ8's had a stick on foil label that said .012 cold.
In reality, there is very little difference in gap between hot & cold. It actually won't make much difference which of the clearances you use as long as they are accurately & uniformly set. I personally would use .012 cold. If using an aftermarket cam, use the makers suggested clearances.
D
Here is a previous discussion on the subject:
https://www.britishcarforum.com/ubbthread...=true#Post88202
To add a bit.
The BN1, BN2's had no tags but the shop manual recommended .012 cold.
The 100M cam recommended .015 cold.
The BN4, BN6, BN7, & BT7 had a riveted brass plate which had .012 hot.
The BT7 & early BJ8 had a riveted brass plate that said .012 hot.
The later BJ8's had an aluminum riveted tag that said .012 cold.
The last BJ8's had a stick on foil label that said .012 cold.
In reality, there is very little difference in gap between hot & cold. It actually won't make much difference which of the clearances you use as long as they are accurately & uniformly set. I personally would use .012 cold. If using an aftermarket cam, use the makers suggested clearances.
D