View Full Version : Swapping a head in the car?
lsfourwheeler
12-26-2018, 06:09 PM
Has anyone tried to replace a head with the engine still in the car? Is there enough room to do it?
My passenger side head encountered a few issues during the first start and the exhaust cam and journal are pretty scored. I think it's too deep to polish and run, Some metal is blocking the #3 cylinder exhaust cam oil port which is what caused my issue.
99587
KenWilkinson
12-26-2018, 06:31 PM
Yup, January 1977, RIT parking lot (Rochester ny)
Pontiac 350, needed a valve job in 20 degrees. Worked for 20 minutes rest for 20 minutes inside. So yes, possible. Just depends on how bad you need to and how poor you are...
wallace18
12-26-2018, 07:00 PM
Yup, January 1977, RIT parking lot (Rochester ny)
Pontiac 350, needed a valve job in 20 degrees. Worked for 20 minutes rest for 20 minutes inside. So yes, possible. Just depends on how bad you need to and how poor you are...
Ken, he is talking about a Subaru boxer motor. I do think you can do it in the car but it would require to remove some parts as well as maybe tilting engine downward on that side, IMO.
KenWilkinson
12-26-2018, 07:48 PM
I got triggered by my memory. 😀
lsfourwheeler
12-27-2018, 10:43 AM
Ken, he is talking about a Subaru boxer motor. I do think you can do it in the car but it would require to remove some parts as well as maybe tilting engine downward on that side, IMO.
What's the reason for the downward tilt?
AZPete
12-27-2018, 11:25 AM
There is enough space in the 818 to remove and replace the heads, but to do it you must first remove the timing belt cover, timing belt, and cam sprockets. Since there is only about 2 inches of working space to the firewall, it will be difficult if not impossible. Removing the seats, firewall panels and perhaps the fuel tank would give you more working space. I think pulling the engine (with transaxle) is easier, . . . unless you are a dentist who likes working in small spaces.
lsfourwheeler
12-28-2018, 12:21 AM
There is enough space in the 818 to remove and replace the heads, but to do it you must first remove the timing belt cover, timing belt, and cam sprockets. Since there is only about 2 inches of working space to the firewall, it will be difficult if not impossible. Removing the seats, firewall panels and perhaps the fuel tank would give you more working space. I think pulling the engine (with transaxle) is easier, . . . unless you are a dentist who likes working in small spaces.
Well, I guess I'm past the hard part then! I've already removed the timing covers and cam sprockets so I could pull out the passenger side exhaust cam. It was made simpler since my car is not complete and I don't have a rear firewall, seats, or panels.
AZPete
12-28-2018, 10:49 AM
Good work. I should have checked your web site and Georgia Tech creds before I said you'd have a tough time. Be sure to post pics and info to help others following you.