[redflores3]

well took it to the shop
cause changing the alternator is a b.....
so we decided to do a compression test
and it came
130 all accross the board..

and sparkplugs are all clean....

 

[Will]

someone chime in and tell him if thats low, i thought it was supposed to be like 170??

 

[gottabfast]

standard: 178 psi
minimum: 149 psi
difference limit: 14 psi

 

[redflores3]

standard: 178 psi
minimum: 149 psi
difference limit: 14 psi

after how many cranks do you get those figures?

does this applies to 93's also?

 

[gottabfast]

The FSM just says crank engine and record highest gauge pressure. It's from a 1991 FSM, so it hsould apply to 1993's as well.

 

[Witt19]

130 should be ok, a lot of peeps have similar numbers and their engiens have been fine

 

[SteveB]

Did you hold the throttle wide open? If it was closed it could account for low readings. Never done it on a SR20DE, but this is the case with the umpteen bike and car engines I've tested over the years.

 

[JDMtyteYO]

The numbers will be lower if the car isnt at operating temperature either...

 

[Sr20kidD]

your supposed to measure the first and 4th stroke.. only

 

[redflores3]

operating temp was fine...
but the throttle was closed..
so thats why I got low numbers then...
we let it crank for about 4 times per cylinder...