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Carbon browning is only on one side -- I tried to photograph the brownest side on each one.
The way I see it, oil burning is good. Keeps things lubricated Sent from my Nexus 6P using Tapatalk
LOL.... That's like saying... engine ping is good... you know the spark plugs are firing!! Gnarls.
How is your oil consumption? Do you see any blue exhaust smoke?
1986 22RE stock cam166314.5 milesCurrent miles 173903.4Did this a several years ago in June, so temp would have been between 70-80F @ 98ft above MSL1: 189 psi 3% leakdown2: 188 2%3: 190 5%4: 186 3%
An important piece of info you do need is if it's mated to an auto or manual tranny. I say that because my 89 22re was mated to an auto, had 210k miles and 175 as it's compression reading
The way I've seen it, if your engine burns oil and it doesn't get worse, just keep up on it. That's what I do. Sent from my Nexus 6P using Tapatalk
Yep. I mean, what's the alternative - spend a bunch of money and time to rebuild an engine that runs fine but just uses a little oil? How much oil could you buy for what the rebuild would cost? LOL... As long as it's not fouling plugs or pinging like crazy under load, who cares if it burns a little oil?
Just thinking out loud...The most meaningful analysis of collected data is to start with a benchmark.For a rebuilt engine, the compression reading right after firing and initial start up. Then again at 500 miles. Then again perhaps 5,000 miles. After that 20K mile intervals.For engines with mileage, check and date stamp initial reading, then check again at 10K or 20K intervals. Of course for some vehicles that are trail rigs only, mileage advance may be very slow over time.
....The Wrangler is much worse, I didn't check it for awhile and ended up adding 3 quarts. Crazy how bad it can get.
Some comp. #'s from the rigs that have passed through my hands, and I kept info on. #1 #2 #3 #4'84 22r/325k 149 154 149 151'84 22re/175k 160 161 158 163'84 22re/277k 170 170 170 170 Rebuild w/510 miles'85 22r/307k 144 147 145 146 '86 22r/257k 153 150 151 150'86 22r/137k 167 168 167 166 Rebuild w/370 miles'86 22er/158k 170 171 169 168 '87 22r/235k 162 160 161 163'88 22re/197k 160 164 165 162 '91 22re/219k 175 175 175 175 Rebuild w/10k milesComp. #'s were taken cold.Valves set cold-.007 intake, .011 exhaust.Altitude 1547ft.
1982 22r with 168k miles. 140 in all 4.
Reversing the linear regression, we can use a compression test to estimate mileage: Estimate Std.Error t value Pr(>|t|)Intercept 1.09235e6 4.44428e5 2.45788 0.0318Compression -5313.55 2580.1 -2.05944 0.0639Thus, my '85 probably has somewhere around 180000+/-7000 miles on the engine. This may be consistent with the condition of the timing chain guides. Lewis
Timing chain guides.... If they are the stock plastic type.. they most likely will fail between 80,000 and 100,000 miles. The metal guides may go to 180,000?
... Did the compression test with 3 different gauges, engine hot, no fuel in the bowls.Equus gauge: 161 - 165 - 160 - 1531977 milton inc: 149 - 150 - 145 - 138No name made in usa: 167 - 170 - 167 - 160
Did the compression test with 3 different gauges, engine hot, no fuel in the bowls.Equus gauge: 161 - 165 - 160 - 1531977 milton inc: 149 - 150 - 145 - 138No name made in usa: 167 - 170 - 167 - 160
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