|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
02-05-2022, 11:15 AM | #21 | |
Senior Member
Join Date: May 2010
Posts: 2,611
|
Re: Valve clearances
Quote:
There is a difference between a Model B cam which has NOT been reground and one that has been reground. 1. A Model B camshaft which has not been reground uses Model B lifters which are NOT the same as Model A lifters. Using wrong lifters will damage camshaft and lifters. Intake clearance is .015 and Exhaust is 0.022. Note for a number of years Model B lifters are no longer being sold as new. 2. A Model B camshaft which has been reground uses what ever lifters AND clearances were specified by the cam grinder. So if you have to replace the camshaft it is best to replace lifters with adjustable ones. Note: Most double nut lock lifters have heels with diameter less than 1.00 Self locking have 1.117 lifters. Using 1.00 lifters on many camshafts today will cause damage to cam and lifters. Adjustable lifters require non mushroom valves. CORRECTION: I was thinking one piece valve guides and Mushroom valves. IF you have a new Stipe cam like IB330 or IB340 use the lifters and clearances specified by Stipe. Last edited by Benson; 02-16-2022 at 08:26 AM. |
|
02-05-2022, 11:32 AM | #22 |
Senior Member
Join Date: May 2010
Posts: 2,611
|
Re: Valve clearances
Several correction have been made to original post #21
|
Sponsored Links (Register now to hide all advertisements) |
|
02-05-2022, 12:00 PM | #23 | |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,079
|
Re: Valve clearances
Quote:
You probably need to pull the manifolds to try that. May work may not.
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
|
02-05-2022, 12:17 PM | #24 |
Senior Member
Join Date: May 2010
Posts: 2,611
|
Re: Valve clearances
About valve noise:
Many times in past folks used hand tools to grind ends of mushroom valves while adjusting clearances. If mushroom valves were not ground correctly then valve clearance might change as valves rotate. Last edited by Benson; 02-05-2022 at 07:33 PM. |
02-05-2022, 11:08 PM | #25 |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,387
|
Re: Valve clearances
|
02-06-2022, 07:54 AM | #26 | |
Senior Member
Join Date: May 2010
Location: Largo Florida
Posts: 7,225
|
Re: Valve clearances
Sponsored Links (Register now to hide all advertisements)
Quote:
Take a look at Brattons. Part numbers 9170 and 9180 |
|
02-06-2022, 08:22 AM | #27 |
Senior Member
Join Date: May 2010
Posts: 2,611
|
Re: Valve clearances
You are correct. I was thinking one piece valve guides and Mushroom valves.
|
02-06-2022, 08:58 AM | #28 |
Senior Member
Join Date: Apr 2015
Location: Saint Cloud Mn
Posts: 745
|
Re: Valve clearances
What is excessive “play”. There tolerances set by the manufacturer. In my case the guides were worn beyond an expensive repair. Should never went out the door this way. Be advised.
|
02-06-2022, 02:12 PM | #29 |
Senior Member
Join Date: Feb 2013
Location: New Brunswick, Canada
Posts: 480
|
Re: Valve clearances
You are right. In my case I have no one to blame but myself. Had the block and rods rebabbited by one shop and a few years later had the cylinders bored and pistons installed at a different shop. In my youth and ignorance, didn't pay any attention to the valve train components. What are the factory specs for lifter diameter, lifter bore diameter (and resulting clearance)so I can determine which or both require attention?
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|