razorlab's simple build(s)
#1156
EvoM Guru
iTrader: (1)
That's interesting. Certainly look fine.
#1157
Think you said the exhausts were fine ( not leaking oil ). I would almost be tempted just to replace those two intake seals and see if that cures the problem.
I had a similar problem on a rebuilt 289 Ford small block back in the day.. Replaced the leaking seals and was good. I assume you went with new valves on your build? Of course if the valve stems had any sign of an issue then the head comes off anyway for replacement.
I had a similar problem on a rebuilt 289 Ford small block back in the day.. Replaced the leaking seals and was good. I assume you went with new valves on your build? Of course if the valve stems had any sign of an issue then the head comes off anyway for replacement.
#1158
Think you said the exhausts were fine ( not leaking oil ). I would almost be tempted just to replace those two intake seals and see if that cures the problem.
I had a similar problem on a rebuilt 289 Ford small block back in the day.. Replaced the leaking seals and was good. I assume you went with new valves on your build? Of course if the valve stems had any sign of an issue then the head comes off anyway for replacement.
I had a similar problem on a rebuilt 289 Ford small block back in the day.. Replaced the leaking seals and was good. I assume you went with new valves on your build? Of course if the valve stems had any sign of an issue then the head comes off anyway for replacement.
Literally everything in the head was new with the build
Kelford 214-b cams
Kelford valve springs
Supertech inconel exhaust valves
Supertech black nitride intake valves
GSC viton valve stem seals
GSC manganese valve guides
#1159
Well the head is off. VERY VERY apparent that the oil is coming from the #3 exhaust valves. The seals looked fine so perhaps it's the valve guides. Shop is going to get the head pressure tested.
I'm surprise how much carbon is on the piston tops for 4,000 miles and almost 95% E85 usage. The only thing I can think of is that it happened during break in on 91 and when it was super rich at idle while I was figuring things out.
Also surprised #3 is cleaner, I thought burning oil would make it gunkier, not cleaner.
![](http://norcalmotorsports.org/users/bryan/mods/EVO/2014_Evo/Motor_Build/leakyOil_august2018/HeadOff.jpg)
![](http://norcalmotorsports.org/users/bryan/mods/EVO/2014_Evo/Motor_Build/leakyOil_august2018/piston_tops.jpg)
![](http://norcalmotorsports.org/users/bryan/mods/EVO/2014_Evo/Motor_Build/leakyOil_august2018/number3_exhaust_ports_head.jpg)
I'm surprise how much carbon is on the piston tops for 4,000 miles and almost 95% E85 usage. The only thing I can think of is that it happened during break in on 91 and when it was super rich at idle while I was figuring things out.
Also surprised #3 is cleaner, I thought burning oil would make it gunkier, not cleaner.
![](http://norcalmotorsports.org/users/bryan/mods/EVO/2014_Evo/Motor_Build/leakyOil_august2018/HeadOff.jpg)
![](http://norcalmotorsports.org/users/bryan/mods/EVO/2014_Evo/Motor_Build/leakyOil_august2018/piston_tops.jpg)
![](http://norcalmotorsports.org/users/bryan/mods/EVO/2014_Evo/Motor_Build/leakyOil_august2018/number3_exhaust_ports_head.jpg)
![](http://norcalmotorsports.org/users/bryan/mods/EVO/2014_Evo/Motor_Build/leakyOil_august2018/number3_exhaust_ports_head2.jpg)
#1160
Well the head is off. VERY VERY apparent that the oil is coming from the #3 exhaust valves. The seals looked fine so perhaps it's the valve guides. Shop is going to get the head pressure tested.
I'm surprise how much carbon is on the piston tops for 4,000 miles and almost 95% E85 usage. The only thing I can think of is that it happened during break in on 91 and when it was super rich at idle while I was figuring things out.
Also surprised #3 is cleaner, I thought burning oil would make it gunkier, not cleaner.
I'm surprise how much carbon is on the piston tops for 4,000 miles and almost 95% E85 usage. The only thing I can think of is that it happened during break in on 91 and when it was super rich at idle while I was figuring things out.
Also surprised #3 is cleaner, I thought burning oil would make it gunkier, not cleaner.
#1161
Still waiting for this damn machine shop. Quickly losing faith, again. Most likely going to send my spare head to another machine shop.
After dealing with this industry for fifteen + years it still somehow blows my mind how elastic time is for the people in it. If I treated my career in my industry the same way, I would probably still have a crap job with no responsibility and no reports twenty years in. Mind boggling.
After dealing with this industry for fifteen + years it still somehow blows my mind how elastic time is for the people in it. If I treated my career in my industry the same way, I would probably still have a crap job with no responsibility and no reports twenty years in. Mind boggling.
#1164
EvoM Community Team Leader
Still waiting for this damn machine shop. Quickly losing faith, again. Most likely going to send my spare head to another machine shop.
After dealing with this industry for fifteen + years it still somehow blows my mind how elastic time is for the people in it. If I treated my career in my industry the same way, I would probably still have a crap job with no responsibility and no reports twenty years in. Mind boggling.
After dealing with this industry for fifteen + years it still somehow blows my mind how elastic time is for the people in it. If I treated my career in my industry the same way, I would probably still have a crap job with no responsibility and no reports twenty years in. Mind boggling.
#1166
EvoM Guru
iTrader: (1)
Damn man. I got my head back from head games faster than that, and they did a full race port...lol
#1167
EvoM Guru
iTrader: (12)
Still waiting for this damn machine shop. Quickly losing faith, again. Most likely going to send my spare head to another machine shop.
After dealing with this industry for fifteen + years it still somehow blows my mind how elastic time is for the people in it. If I treated my career in my industry the same way, I would probably still have a crap job with no responsibility and no reports twenty years in. Mind boggling.
After dealing with this industry for fifteen + years it still somehow blows my mind how elastic time is for the people in it. If I treated my career in my industry the same way, I would probably still have a crap job with no responsibility and no reports twenty years in. Mind boggling.
#1168
Surprisingly, the head is done. Going back on the car this coming week. I am going to miss one of my October track days which bums be out because it's the config I want to break my personal best on. Rest of the month is super packed work wise.
Of course, I have zero information of what actually went wrong. Next time anything happens I am using a different machine shop so when I spend $1k+ I actually have somebody communicate with me.
Of course, I have zero information of what actually went wrong. Next time anything happens I am using a different machine shop so when I spend $1k+ I actually have somebody communicate with me.
#1169
EvoM Guru
iTrader: (1)
Glad it's getting back together. Sucks they couldn't tell you what they found.
#1170
Newbie
Join Date: Oct 2017
Location: Northern California Bay Area
Posts: 10
Likes: 0
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Surprisingly, the head is done. Going back on the car this coming week. I am going to miss one of my October track days which bums be out because it's the config I want to break my personal best on. Rest of the month is super packed work wise.
Of course, I have zero information of what actually went wrong. Next time anything happens I am using a different machine shop so when I spend $1k+ I actually have somebody communicate with me.
Of course, I have zero information of what actually went wrong. Next time anything happens I am using a different machine shop so when I spend $1k+ I actually have somebody communicate with me.