Broken piston 1.5L ecoboost

**Egan101** · February 22nd, 2019 05:54 PM

Originally Posted by hardwang

Bro, I have a question. Did your friend and the other owners drive their Focus hard during the break in period?

I just remembered when my dad and brother test drove and borrowed mine, they said they drove the hell out of it to test the capabilities and even reached 160km/h... from what I know, one should not exceed 100km/h during the break-in period...

Any input would be great.

I am not sure how hard they drove their Foci during the break-in period but the only thing I remembered from Ford when I got my Fiesta is that I should not try to hit redline during the break-in period. Ecoboost engines are rev-happy and it's hard keeping it below 3k rpm specially when the turbo spools already.

The Focus can easily do 160kmh, even 200kmh will not stress the engine at all. I guess your dad and brother have not tapped the full potential of that 1.5L Ecoboost engine. Once that engine is fixed, give it a go and flex the legs of your car. Just make sure the road is open.

**hardwang** · February 22nd, 2019 06:10 PM

Originally Posted by Egan101

I am not sure how hard they drove their Foci during the break-in period but the only thing I remembered from Ford when I got my Fiesta is that I should not try to hit redline during the break-in period. Ecoboost engines are rev-happy and it's hard keeping it below 3k rpm specially when the turbo spools already.

The Focus can easily do 160kmh, even 200kmh will not stress the engine at all. I guess your dad and brother have not tapped the full potential of that 1.5L Ecoboost engine. Once that engine is fixed, give it a go and flex the legs of your car. Just make sure the road is open.

Oh boy, they definitely redlined it. Paglabas pa lang sa casa, I let my father drive it and he went full acceleration agad.. I myself am guilty redlining it within the break in period since I thought the period ends at 1000Km instead of 1000 miles, yun pala 1500Km according sa manual.

I think I’m now having the idea that maybe the car wasn’t properly broken in... of course all of this is only theoretical... but I won’t tell the casa though. Baka ako pabayarin. 😂

**ray_noel** · February 22nd, 2019 06:11 PM

Originally Posted by Egan101

I am not sure how hard they drove their Foci during the break-in period but the only thing I remembered from Ford when I got my Fiesta is that I should not try to hit redline during the break-in period. Ecoboost engines are rev-happy and it's hard keeping it below 3k rpm specially when the turbo spools already.

The Focus can easily do 160kmh, even 200kmh will not stress the engine at all. I guess your dad and brother have not tapped the full potential of that 1.5L Ecoboost engine. Once that engine is fixed, give it a go and flex the legs of your car. Just make sure the road is open.

This is true... coming from 1.5m/t ecosport, i tried to test their ecosport with ecoboost, swabe ang tubro di mo akala sa bigat ng ecosport... pero yun nga nga abot ng 3-4k rpm though gaan parin ang ramdan ng engine... i wonder kung ano na kaya sa fiesta... sarap ng feel siguro...

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**Egan101** · February 22nd, 2019 06:45 PM

Originally Posted by ray_noel

This is true... coming from 1.5m/t ecosport, i tried to test their ecosport with ecoboost, swabe ang tubro di mo akala sa bigat ng ecosport... pero yun nga nga abot ng 3-4k rpm though gaan parin ang ramdan ng engine... i wonder kung ano na kaya sa fiesta... sarap ng feel siguro...

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With my old Fiesta Ecoboost, the engine idles at 1k rpm and the turbo spools just before 2k rpm when properly warmed up. However, when the engine is not yet warm, turbo lag is evident as you need to rev it a bit to 3k to give it a go.

At full acceleration, the Fiesta 1.0L Ecoboost can do 0 to 100 kmh in just ticks below 10 seconds. They say the Fiesta Ecoboost is good for 200 kmh but I have not tried it at that speed, only 180 kmh.

**Janemar** · February 24th, 2019 11:33 AM

Anong fuel laging gamit mo?

**hardwang** · February 24th, 2019 01:57 PM

Originally Posted by Janemar

Anong fuel laging gamit mo?

Mostly Shell V power. Sometimes Caltex platinum. Manual recommends 95 octane or up.

Just visited the car yesterday, the engine was open. Here is what the piston looks like.

**Egan101** · February 24th, 2019 02:03 PM

Originally Posted by hardwang

Mostly Shell V power. Sometimes Caltex platinum. Manual recommends 95 octane or up.

Just visited the car yesterday, the engine was open. Here is what the piston looks like.

That piston sure looks like it suffered a catastrophic failure. It might be the piston design.

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**hardwang** · February 24th, 2019 05:57 PM

Originally Posted by Egan101

That piston sure looks like it suffered a catastrophic failure. It might be the piston design.

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Yeah. Might be a factory defect talaga. Pero kapag may bago ng engine, I’ll just break it in properly this time just to be sure. No more screwing around. 😂

**Janemar** · February 24th, 2019 09:16 PM

Ringland failure, cause is usually detonation or weak piston talaga. Either bad batch ng piston or bad fuel + heavy driving. I would switch to blaze100 if I were you for extra insurance.

No form of break in can save your piston ringland from cracking. Ang binebreak in mo lang are piston rings to seat properly sa cylinder walls. If improper breakin, you get high blowby due to poor sealing and not cracked piston.

**hardwang** · February 24th, 2019 11:06 PM

Originally Posted by Janemar

Ringland failure, cause is usually detonation or weak piston talaga. Either bad batch ng piston or bad fuel + heavy driving. I would switch to blaze100 if I were you for extra insurance.

No form of break in can save your piston ringland from cracking. Ang binebreak in mo lang are piston rings to seat properly sa cylinder walls. If improper breakin, you get high blowby due to poor sealing and not cracked piston.

Yup, actually plano ko din yan once I get the car again, I will use blaze for that 100 octane. Still, I’ll be playing safe this time, break in ko na ng maayos para iwas sa possible issues and maybe not abuse the engine too much for prolonged periods of time. Yes, faulty ata yung batch ng piston nila, I’m not the only one who experienced this issue.