compression

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fiat218
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

compression

Post by fiat218 »

1980

all cylinders are 150, 4th is 60, wtf, bad rings i presume

dab some oil in that plug hole and 150 after so where is the miracle oil or something :P to fix that
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider
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124ADDHE
Posts: 365
Joined: Tue Oct 19, 2010 11:19 pm
Your car is a: 1974 Spider Amalgamation with C40 Solex
Location: Salmon Arm, BC, Canada

Re: compression

Post by 124ADDHE »

That sucks! time to pull the head, maybe its a bent valve or something cheap? Did something happen rescently?
Regards,
Keith Cox
1973 124 Spider
1973 John Deere 500c backhoe
1987 Jaguar VDP
2013 passat tdi
2015 cherokee
User avatar
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: compression

Post by 124JOE »

when you tryed C test it wasnt seated properly
yes oil will help make it seal and clean the threads
when you do everything correct people arent sure youve done anything at all (futurama)
ul1joe@yahoo.com 124joe@gmail.com
fiat218
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: compression

Post by fiat218 »

i got this car, it was sitting for 6 years
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider
131
Posts: 672
Joined: Sun Nov 14, 2010 1:13 am
Your car is a: 1982 131 Superbrava warmed 2.0 litre.
Location: Tasmania, Australia

Re: compression

Post by 131 »

Check the valve clearances on 4 before you pull the head.
Mick.

'82 2litre 131, rally cams, IDFs & headers.
fiat218
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: compression

Post by fiat218 »

i will thanks
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider
AndyS
Posts: 328
Joined: Fri Jun 10, 2011 10:02 am
Your car is a: 1967 Fiat 124 Spider
Location: SF Bay Area

Re: compression

Post by AndyS »

if you can get your hands on a leak down tester, it can supply really useful information for determining where the compression is being lost. do a google search if you aren't familiar with what a leak down tester is/does
1967 Fiat 124 Spider
1964 Fiat Abarth 850TC conversion
1962 Abarth Allemano 1 liter Coupe
fiat218
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: compression

Post by fiat218 »

i had a leak test. showed at the time 90 percent on nuber one, but the mechanic said to let it idol alot and rev it up, then change the oil and do the same and then take more test
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider
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