Yep, sounds like someone was too far into the Aquavit when doing that valve job
| Slant Six Forum https://slantsix.org/forum/ |
|
| Valve angle question https://slantsix.org/forum/viewtopic.php?t=17045 |
Page 1 of 1 |
| Author: | skraecken [ Fri Apr 14, 2006 1:05 am ] |
| Post subject: | Valve angle question |
Has there been any changes in valve angles, depending of the year of the engine? |
|
| Author: | SlantSixDan [ Fri Apr 14, 2006 7:40 am ] |
| Post subject: | |
No. |
|
| Author: | skraecken [ Fri Apr 14, 2006 10:51 am ] |
| Post subject: | |
Then when I got a head with 2 exhaustvalves that got 50 degr. Somebody have done a bad valvejob. The rest is 45 degr. |
|
| Author: | SlantSixDan [ Fri Apr 14, 2006 11:25 am ] |
| Post subject: | |
Yep, sounds like someone was too far into the Aquavit when doing that valve job
|
|
| Author: | Thropar [ Fri Apr 14, 2006 11:40 am ] |
| Post subject: | Vj |
You can grind the seats and valve faces to anything you want (within reason). Some people cut the valve face at 44, and the seats at 30/45/60 where the 45 is the area being hit by the valve. Some people cut the valve face at 2 angles (back-cut) and the seat at 5 angles. It varies, depending on the builder. But for most stock applications, it's a 45 on both. A mismatched angle on the same head is a mistake. (slipped adjuster on valve machine OR more likely, a very worn 45 stone...are the 50's on one end of the head?) |
|
| Author: | skraecken [ Sat Apr 15, 2006 12:08 am ] |
| Post subject: | |
They are on cyl 3 and 4, these valves have been changed at some time, they are the "early" type with 3 (or 4) groves, all the others got 2. |
|
| Author: | Thropar [ Sat Apr 15, 2006 9:56 am ] |
| Post subject: | valves |
Seems like the two were done as a "fix" to the head and not a complete valve job. As long as the seat and valve face match, it'll work, but I'd say get them all re-cut to match. |
|
| Page 1 of 1 | All times are UTC-08:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|