I've run into an issue i've not been able to resolve yet.
Recently rebuilt motor. Running great and just added 4:2:1 headers and now have an oil leak.
There was zero leak before going to headers.
It appears to be from back half of motor on passenger side either at or near the upper stud area.
I've reviewed the threads here and have already tried removing and reinstalling the studs using high temp thread seal. That did not work. I did not try to seal from inside the cam box yet.
It looks like oil may be coming from the cam tower gasket. So I've retorqued those bolts.
Is it common for the cam tower gaskets to leak?
I've used shouldered studs on all the exhaust points and the large washers to try to help spread the load.
Help.. hate an oily engine...
Headers and oil leak
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- Posts: 304
- Joined: Mon Oct 04, 2010 7:45 pm
- Your car is a: 1980 Fiat 124 carb
- Contact:
- 124JOE
- Posts: 3141
- Joined: Fri Jun 24, 2011 7:11 pm
- Your car is a: 1978 124 fiat spider sport 1800
- Location: SO. WI
Re: Headers and oil leak
yes the cam boxes do leak and retourquing them should help
when you do everything correct people arent sure youve done anything at all (futurama)
ul1joe@yahoo.com 124joe@gmail.com
ul1joe@yahoo.com 124joe@gmail.com
Re: Headers and oil leak
Headers? Huh!
What kind of headers are you having problems with
What kind of headers are you having problems with
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- Posts: 3996
- Joined: Sat May 23, 2009 1:23 pm
- Your car is a: 1971 124 Spider
- Location: Texas, USA
Re: Headers and oil leak
It's common for the cambox gaskets to leak, but not so soon!
If re-torquing does not fix it, then you will have to change the gasket. Be sure both surfaces are flat and clean.
We sell a hi-po cambox gasket that has an impregnated silicone bead, they last longer than the standard ones.
If re-torquing does not fix it, then you will have to change the gasket. Be sure both surfaces are flat and clean.
We sell a hi-po cambox gasket that has an impregnated silicone bead, they last longer than the standard ones.
Csaba
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town
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- Posts: 336
- Joined: Sun Jul 19, 2009 6:37 am
- Your car is a: 1979 Fiat Spider
Re: Headers and oil leak
Just want to chime in on those hi-po gaskets Csaba sells - they are "the Bomb"!! I bought a pair for Jon Logan to use when he re-did my head/camboxes and they work like a charm; I highly recommend them!
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- Posts: 2623
- Joined: Sat Jan 28, 2006 2:08 pm
- Your car is a: 70 124 spider-74x19-03 ranger edge
- Location: San Dimas, Ca
Re: Headers and oil leak
I know one of the bolts that hold the header on needs to be sealed. If not it will leak oil.
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- Posts: 3996
- Joined: Sat May 23, 2009 1:23 pm
- Your car is a: 1971 124 Spider
- Location: Texas, USA
Re: Headers and oil leak
It's the #2 and #4 studs.spiderrey wrote:I know one of the bolts that hold the header on needs to be sealed. If not it will leak oil.
Csaba
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town
Re: Headers and oil leak
After I rebuilt my motor I also noticed an oil leak around the cam box cover, when I was looking at the nut to hold them down and the hole it fit in I found it was bottoming out before the gasket was compressed so I cut about .020 off the shoulder and it seems to be working OK now.
Ken
Ken
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- Posts: 76
- Joined: Fri Oct 21, 2011 9:48 am
- Your car is a: 1981 124 Spider
- Location: Northwest Chicago Suburbs
Re: Headers and oil leak
So what do you use to "seal" the studs? I need to do this to stop the oil from dripping onto my exhuast header and smoking out the neighborhood every time I run my car when it's sat for several weeks.
Steve Muzzillo
1981 124 Spider 2000 (ex-turbo)
2006 Acura MDX
2008 Honda CRV
2014 GMC Acadia
2017 Acura RDX
1981 124 Spider 2000 (ex-turbo)
2006 Acura MDX
2008 Honda CRV
2014 GMC Acadia
2017 Acura RDX
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- Posts: 3959
- Joined: Sat Dec 27, 2008 2:14 am
- Your car is a: 1980 124 spider
- Location: Naramata B.C.
Re: Headers and oil leak
I used some kind of thred sealer. It came in a small white tube and has worked to date after pulling the top two studs a couple of years ago. Prior to that I had the oil on header issue as well.
Chris
Chris
80 FI spider
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box
- 124JOE
- Posts: 3141
- Joined: Fri Jun 24, 2011 7:11 pm
- Your car is a: 1978 124 fiat spider sport 1800
- Location: SO. WI
Re: Headers and oil leak
high temp silicone on the threads
when you do everything correct people arent sure youve done anything at all (futurama)
ul1joe@yahoo.com 124joe@gmail.com
ul1joe@yahoo.com 124joe@gmail.com