Dealer compression test results..
#1
Hopeful Future
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Dealer compression test results..
Managed to take the car to the stealership today to get the seatbelt recall performed, Ordered a compression test at the same time to see how healthy the car is. Here are the results!
Quick question though, the FSM measurements seem to be completely different from the readings the dealership gave me on the printout...anyone have any info on this by any chance? Much appreciated!
The numbers just seem completely impossible according to the chart in the FSM, anyone mind providing some insight?
Quick question though, the FSM measurements seem to be completely different from the readings the dealership gave me on the printout...anyone have any info on this by any chance? Much appreciated!
The numbers just seem completely impossible according to the chart in the FSM, anyone mind providing some insight?
#5
Rotisserie Engine
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Going off that chart, at 250cranking rpm and 105-110 PSI he is basically at the TOP of the chart.
Just a FYI, I also had a factory engine with 110 psi. 2 months later a coolant seal ruptured. Not trying to scare you, but apex seal failures are NOT the only way these can go. 30 year old rubber finally gave way
Just a FYI, I also had a factory engine with 110 psi. 2 months later a coolant seal ruptured. Not trying to scare you, but apex seal failures are NOT the only way these can go. 30 year old rubber finally gave way
#7
Rotary Freak
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The chart is plotting minimum pressure vs cranking rpm, so his numbers exceeding the high range on the chart doesn't matter - his cranking rpm were almost bang on 250, the center of the chart, where 85 psi is shown as the minimum. His numbers are about where a fresh, but broken-in NA motor should be at sea level.
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The chart is plotting minimum pressure vs cranking rpm, so his numbers exceeding the high range on the chart doesn't matter - his cranking rpm were almost bang on 250, the center of the chart, where 85 psi is shown as the minimum. His numbers are about where a fresh, but broken-in NA motor should be at sea level.
And stupid me, I forgot to mention, its a GTU, so yes, N/A.
#9
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Going off that chart, at 250cranking rpm and 105-110 PSI he is basically at the TOP of the chart.
Just a FYI, I also had a factory engine with 110 psi. 2 months later a coolant seal ruptured. Not trying to scare you, but apex seal failures are NOT the only way these can go. 30 year old rubber finally gave way
Just a FYI, I also had a factory engine with 110 psi. 2 months later a coolant seal ruptured. Not trying to scare you, but apex seal failures are NOT the only way these can go. 30 year old rubber finally gave way
#10
Rotisserie Engine
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It probably has 3 piece apex seals. Whe I tore it down and could tell no one had ever been in there. Mine had 3 piece seals and after rebuilding and going to a 2 piece seal the compression dropped about 10 PSI (engine is still fairly fresh though)
The engine had 207,500 when it went. Apex seals were actually worn below their height limit. Good thing the coolant seal went because I think the apex would have rolled out of the groove soon.
The engine had 207,500 when it went. Apex seals were actually worn below their height limit. Good thing the coolant seal went because I think the apex would have rolled out of the groove soon.
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at 107K its probably the factory engine, so its got another 100k to go until the water or oil seals die
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