Brillo's 2004 45,000mi Compression Test
#54
This is posted in the new engine club thread, but here are my results that I can't make poop out of because of the low cranking RPMS. Here are my posts in the other thread. If you are toying with the idea of getting a comp test, don't wait, just do it...
Well, talked to the service manager this morning about issues found with my hot start problem and Mazda is authorizing a new engine for me... I have had no powerloss history or low idle issues! No hot climates for the last 30K and never dogged with the A/C on. Oil chagnes were done every 3000k or less (Royal Purple 5-30 since 20K). plugs, coils, and wires have all been replaced in the last 10-15K. Premixed since 20K with Lucas UCL and Semi-Synth 2stroke. (Maybe that was hiding damage done before 20k when we lived in missouri and temps would spike past 100 in the summer) The only thing he could say was that the plugs were fouled, but since I premix and they have nearly 15K on them, I wouldn't assume new engine. Hey Im all for free, but I just have doubts about the symptoms vs. diagnosis. Hey said they called the tech line and they were told to replace. I wish I could request a compression test, but since this is under warranty, Id have to pay outa pocket for it I'm sure. Should I get a second opinion? I brought it in cause I don't have the newest battery and I think I have the slowerer starter. I just wanted those TSBs addressed.
update... Just got a quick glance at their compression numbers for my car. I can definately say I have the old starter for sure - look at the low crank speed!
At 169 RPM
5.1
5.1
5.3
At 171 RPM
5.3
5.3
5.7
Thoughts? I have to check to see specs, because normally that is done at 250+ RPMs so I need to dig up the graph showing values for this RPM. I also saw the write up indicated blue smoke at start-up, which I think is normal for a 40 degree cold start on a premixed rotary with a mid-pipe.
At 169 RPM
5.1
5.1
5.3
At 171 RPM
5.3
5.3
5.7
Thoughts? I have to check to see specs, because normally that is done at 250+ RPMs so I need to dig up the graph showing values for this RPM. I also saw the write up indicated blue smoke at start-up, which I think is normal for a 40 degree cold start on a premixed rotary with a mid-pipe.
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