4th of July Engine Fun

Keep it on topic, it will make it easier to find what you need.
Post Reply
WYSpider

4th of July Engine Fun

Post by WYSpider »

15 miles from home and I get a whiff of burning oil. Once I get home, I pop the hood and see plug #1 and plug #2 have decided to go swimming: the recessed area plug #1 sits in is completely full of oil, plug #2s area isn't that far behind.

Power wash the engine, blow dry it, run the engine with the car parked and see nothing. Take it for a spin (70 mph in 5th) and discover oil is starting to collect in the low area near head bolts #9 and #10 (front of car, nearest coolant tee).

Head was rebuilt 16k miles ago, torqued to factory specs, haven't adjusted the values (and suspect it's too late at this point haha).

Hoping I have really, really good luck and it's just a head gasket, suspect otherwise.

Don't have pictures to share. Car is garaged 6 hours from where I type.

What are your thoughts?

p.s. earlier this year, maybe 1k miles ago the engine was pulling hard in 4th gear and there was a single jerk, like the ignition cut out, it hasn't recurred and the car has been running great until now.
User avatar
RRoller123
Patron 2020
Patron 2020
Posts: 8179
Joined: Sun Nov 13, 2011 2:04 pm
Your car is a: 1980 FI SPIDER 2000
Location: SAGAMORE BEACH, MA USA

Re: 4th of July Engine Fun

Post by RRoller123 »

Not from the Cam Boxes?
'80 FI Spider 2000
'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle
AriK
Patron 2018
Patron 2018
Posts: 1148
Joined: Sat Apr 02, 2011 7:58 pm
Your car is a: 1979 Fiat Spider
Location: Montreal Canada

Re: 4th of July Engine Fun

Post by AriK »

Before you suspect a head gasket check cam seals, they may be leaking and blowing oil toward the head.
If you are banking on good luck hope for cam cover gasket(s) or oil cap seal.
Bet you wish you're not 6 hours from your car now, huh!
WYSpider

Re: 4th of July Engine Fun

Post by WYSpider »

Yeah, I definitely wish my car wasn't a 6.5 hour dive away. Lol

My first thought was oil cap seal. After power washing, I did swap out the oil cap with a spare I carry in the trunk that has a new seal. No dice.

So possibilities include:
- cam cover gasket(s)
- cam seals
...
User avatar
aj81spider
Patron 2020
Patron 2020
Posts: 1526
Joined: Fri Mar 11, 2011 9:04 am
Your car is a: 1974 Fiat 124 Spider
Location: Chelmsford, MA

Re: 4th of July Engine Fun

Post by aj81spider »

I had that exact problem and it was the valve covers. Make sure you haven't torqued your valve covers down too tightly (they will warp - ask me how I know). I also had an issue where I had the cork valve cover gaskets - those leaked as well. Switched to rubber gaskets, finger tight on the valve cover bolts + 1/2 turn and the leak is gone.
A.J.

1974 Fiat 124 Spider
2006 Corvette
1981 Spider 2000 (sold 2013 - never should have sold that car)
WYSpider

Re: 4th of July Engine Fun

Post by WYSpider »

aj81spider wrote:I had that exact problem and it was the valve covers. Make sure you haven't torqued your valve covers down too tightly (they will warp - ask me how I know). I also had an issue where I had the cork valve cover gaskets - those leaked as well. Switched to rubber gaskets, finger tight on the valve cover bolts + 1/2 turn and the leak is gone.
Jon Logan did rebuilt with rubber gaskets. I have some laying around. I'll replace them, torque to your specs and keep my finger's crossed!
BammBamm
Posts: 240
Joined: Fri Jul 31, 2015 1:23 am
Your car is a: 1982 Pininfarina Spider
Location: az

Re: 4th of July Engine Fun

Post by BammBamm »

I had the same thing happen but it was the seal on the oil filler cap. only at high rpm would it leak.
Bill Woodbury
Design Engineer
Zero Shock Seating
1982 Spider 2000
WYSpider

Re: 4th of July Engine Fun

Post by WYSpider »

Not the oil filer cap gasket or the valve/cam cover gaskets. Pulled the covers, placed them on a flat surface, and used a feeler gauge around them. Don't think they're warped.

Time to power wash the engine again...
klweimer
Posts: 550
Joined: Tue Mar 27, 2012 7:45 am
Your car is a: 1982 Spider 2000
Location: Arvada, Colorado

Re: 4th of July Engine Fun

Post by klweimer »

You might check your crankcase ventilation system. Possible pressurizing of the crankcase forcing out oil? Check head bolt torques? You might run a compression test to see if anything looks funny there.
Kirk
WYSpider

Re: 4th of July Engine Fun

Post by WYSpider »

Thanks Kirk, those are all good ideas.
User avatar
seabeelt
Patron 2019
Patron 2019
Posts: 1614
Joined: Tue Feb 19, 2008 4:22 pm
Your car is a: Fiat Spider - 1971 BS1
Location: Tiverton, RI

Re: 4th of July Engine Fun

Post by seabeelt »

+1 on the bypass pressure. If you pull the hose off the air breather, you should get some air and noise from the hose. If not most likely the flame retardant wire mesh thing is plugged up
Michael and Deborah Williamson
1971 Spider -Tropie’ - w screaming IDFs
1971 Spider - Vesper -scrapped
1979 Spider - Seraphina - our son's car now sold
1972 Spider - Tortellini- our son's current
WYSpider

Re: 4th of July Engine Fun

Post by WYSpider »

Flame retardant wire mesh is clear.

Did the dye / black light combo tonight. Looks like it's the front cam seal on the exhaust side. A new area to learn about. :)
WYSpider

Re: 4th of July Engine Fun

Post by WYSpider »

Looks like the existing front seal behind the cam wheel is red rubber/hard plastic. This was installed by Jon Logan several years back and now it's leaking. Is this a common front seal?
http://i1070.photobucket.com/albums/u48 ... kysno4.jpg

Here are the ones I got from AR:
http://i1070.photobucket.com/albums/u48 ... 0lyn8s.jpg
http://i1070.photobucket.com/albums/u48 ... dqfyjf.jpg

So the question is: can I install the AR cam seals without removing the cam housing?
User avatar
aj81spider
Patron 2020
Patron 2020
Posts: 1526
Joined: Fri Mar 11, 2011 9:04 am
Your car is a: 1974 Fiat 124 Spider
Location: Chelmsford, MA

Re: 4th of July Engine Fun

Post by aj81spider »

I changed my exhaust cam seal without pulling the cam housing. I think the intake would be the same. Here's my story

http://www.fiatspider.com/f15/viewtopic ... am#p209556

I think I had to pull the radiator to do it but it wasn't that bad a job - I'm pretty much a novice mechanic.
A.J.

1974 Fiat 124 Spider
2006 Corvette
1981 Spider 2000 (sold 2013 - never should have sold that car)
Post Reply