Questions tagged [cylinder]

Related to the area of the engine block where the piston travels.

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1 answer
44 views

troubleshooting Cylinder 2 misfire on Toyota MR2 Spyder

I am dealing with Cylinder Misfire p0300/P0302/P0304 codes on my Toyota MR2 Spyder and trying to get to the bottom of the issue. Here is what I have tried so far: Changed all 4 Spark plugs Changed ...
1 vote
1 answer
72 views

My 2009 Chevy Traverse has a cylinder shot and Timing belt is there a time stamp or on board history on when it went out

Is there a time stamp or history on when a cylinder or timing Chain went out
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0 answers
11 views

2007 Chrysler Aspen 4.7. brake light on

I had to change my brake booster and master. When I got it all back together my brake light stays on. I pull the brake pedal up to the switch for light then it will go off but sometimes not. What ...
0 votes
1 answer
121 views

I have a 2012 Chevrolet Camaro 2lt with a lot of problems

I have a 2012 Chevrolet Camaro RS and I'm getting a cylinder 6 misfire. I swapped the spark plugs because they were burnt, but I'm still getting a cylinder 6 misfire. I even checked the coil packs. ...
0 votes
2 answers
364 views

2005 Subaru Legacy Cylinder 3 misfire

My Wife's Subaru's check engine light recently came on, when we went to auto zone to check the code it came back as a cylinder 3 misfire, we went to our mechanic and he changed the sparkplugs, but ...
3 votes
1 answer
316 views

2008 GMC Yukon 5.3L engine vibration at low speeds with cylinder deactivation

I have a 2008 gmc yukon 5.3L that has developed an engine vibration at low speeds with cylinder deactivation like when coming to a stop. Does not vibrate while normal low speed cruising but when ...
1 vote
1 answer
79 views

Cylinder sleeves mildly rusted after heads were off

I had my cylinder heads off for valve tuning for a prolonged time period so moisture got in and some very mild surface rust collected inside the cylinders whose pistons were not in TDC (4 out of 6). ...
1 vote
1 answer
59 views

Testing piston ring

One of my cylinders is leaking and I have determined so far that at least one or both of the intake valves are leaking. However, now that I have that cylinder head off, I would also like to test the ...
0 votes
1 answer
39 views

Cylinder leakdown threshold

I did a cylinder leakdown test on my 6 cylinders and they range at 75-80% retention, meaning 20-25% leaking. What is an acceptable rate of cylinder leaking? If the leak in a certain cylinder is higher ...
1 vote
0 answers
58 views

Mini Cooper S JCW R56 (2012) Misfire

My mini is having an issue with engine msifiring and rpm does not go more than 5 as it starts to tumble. Recently I had a cracked cylinder and changed the whole engine with a less used engine and ...
3 votes
1 answer
98 views

Can one detect coolant leak due to blown head gasked by visual inspection of pistons/spark plugs?

I have problems with my 2004 Honda Civic. My engine overheats and there is no hot air coming to the cabin, even if the temperature gauge shows Hot. Every mechanic I know told me that it is a clear ...
0 votes
1 answer
66 views

Is there such thing as horsepower per cylinder?

I've heard of power per liter but is there such a thing as power per cylinder? I mean, I know more cylinders would mean more power for an engine. For example, a 6.0 L naturally aspirated V12 can make ...
2 votes
0 answers
1k views

Rear brake cylinder's piston "really" stuck: how to remove it?

The rear brakes in my hobby car are drums type. One of its brake cylinders have one of the pistons "really" stuck: it won't move by hydraulic force by pressing the brakes pedal; it won't move by ...
0 votes
0 answers
171 views

2017 Hyundai Elantra 2.0L #2 cylinder misfire

I borrowed my dads OBD2 tool (BlueDriver) did a scan, the codes returned were for that specific cylinder misfiring. Purchased an ignition coil (as that has been the issue on previous 4 cars with that ...
0 votes
1 answer
405 views

Finding TDC with a screwdriver.. what if screwdriver gets stuck?

I was performing a leak down test on a chevy vortec 4.3L V6. In order to find TDC on the #3 cylinder, I stuck a screwdriver down the spark plug hole and slowly turned the crank pulley with a wrench. ...
3 votes
3 answers
87 views

What does radiator water in the cylinder well indicate?

The vehicle was running fine last week. Stood for a few days and then when put under load (flooring it) the 2nd cylinder was found to be misfiring. Popped off the engine cover and removed the 2nd ...
1 vote
1 answer
66 views

What is typically involved to repair a internal combustion engine that has a cylinder misfiring?

I have a vehicle with a cylinder misfiring (according to my OBD-II code reader). I have decided to have a mechanic repair it, as I have never performed a similar motor vehicle repair. Note that the ...
1 vote
2 answers
1k views

How are compression rings lubricated?

My question relates to the lubrication of cylinder walls and piston rings. It is my understanding that pistons in cars consists of 3 rings; two compression rings and the oil/scraper ring. As far as I'...
0 votes
1 answer
428 views

Can clutch fluid be low for any reason other than a leak?

I’ve had two top up my clutch fluid two times in a few days though it hasn’t gone low today. I was looking for the leak which I believe can only occur in clutch fluid container, master cylinder, slave ...
1 vote
0 answers
75 views

Yamaha FZS 600 Faser - Losing a cylinder when hot

I recently bought a 1999 Yamaha FZS 600 Fazer. It was absolutely fine on the test ride. Did a couple of other short rides (about 20 mins), also fine. Then today after about 15 mins I lose a cylinder. ...
0 votes
0 answers
80 views

Purpose and correct name of plastic inserts in 2-stroke cylinder

I recently replaced the cylinder and piston on a broken chainsaw 2-stroke engine and I found 2 plastic inserts inside the cylinder. I'm wondering what purpose these serve, and what the correct name ...
0 votes
1 answer
115 views

What effect would a hole out of the bore at the bottom be?

My end cap bolt dislodged from the piston and ended up in the sump, it broke right through the bore at the bottom making a small hole about 0.5cm^2. I was intent on replacing the piston and bearing ...
2 votes
1 answer
1k views

Pros and cons of driving a vehicle with a misfiring cylinder

Check engine light came on for a Toyota Prius that is only being driven about once a month since COVID-19 pandemic began. OBD-II scanner shows P0302, which indicates the problem is a misfiring ...
5 votes
5 answers
23k views

Side effects of small amount dirt from spark plug well

I was changing a bad spark plug on my F150 4.6L V8 and despite cleaning the spark plug well as thoroughly as I could muster (rearmost cylinder and under the dash pretty well so very little clearance) ...
10 votes
3 answers
39k views

Will boring a cylinder affect its longevity thereafter?

I had to deal with a worn out cylinder recently and was suggested to bore the engine which seems perfectly normal. I am assuming the compression ratios will change so what do mechanics do to ...
2 votes
0 answers
75 views

Does a 2-stroke engine needs "break-in" after replacing cylinder and piston?

I just replaced cylinder and piston (with new gasket, rings, etc) in a 2-stroke 52cc string trimmer engine. It started at the first pull and sounds great, I let it run for 5 minutes, adjusted the carb ...
6 votes
1 answer
1k views

Are wet cylinder liners' shims utterly neccessary?

This old Skoda engine I'm rebuilding has wet cylinder liners, and uses thin copper shims in their seats. The manual talks about liners protrusion between 0.14 to 0.32 mm above the block, and available ...
1 vote
0 answers
347 views

Cyclinder 2 misfire error code - 11 Dodge Journey 3.6L V6

2011 Dodge Journey Mainstreet 2wd 3.6L V6 100k miles Check Engine Light on, first read Low Voltage replaced Battery Check Engine Light came back on, 2nd read Cylinder 2 misfire, & Thermostat ...
0 votes
1 answer
184 views

Toyota 4EFE Cylinder head

Why does the Toyota 4EFE engine have 3 Allen Heads in the middle of it? The Cylinder head will not remove from the block. Do these Allen Heads need to be removed to separate the cylinder head?
2 votes
0 answers
9k views

Brakes go to floor after bleeding

I've got a 97 Honda Civic, no ABS, front disks, and rear drums. A few days ago I had to slam on my brakes and I locked up the tires, and after that my brake pedal went to the floor. I got home, and ...
0 votes
1 answer
8k views

Drove with radiator cap not tight all theway

....I didn't know my radiator cap was loose till I saw my car overheating...eventually it wouldn't accelerate as I pulled over n opened the hood I saw it was missin n their was radiator fluid ...
2 votes
4 answers
1k views

Can i Use The Same Old Bolts On The Same Cylinder Head? [duplicate]

Car: 2010 Passat CC 1.8 TSI Would it be a really big problem if I use the old cylinder head bolts or not?
1 vote
0 answers
148 views

Fiat Uno 1.0 cylinder head valves

I would like to know how to remove the valves from the cylinder head.
4 votes
1 answer
65 views

Pistons ordeal: more pistons problems; two issues in one question

So, still having problems rebuilding this old engine (Skoda Estelle 120, 70's, RWD, rear mounted engine). First of all: getting new parts is out of the question since I have no access to those. So I ...
3 votes
1 answer
331 views

Check engine light mysteriously turned off

I had a check engine light indicator turned ON this morning. I took it to AutoZone to get the code for the CEL and got a cylinder misfire on two of my cylinders. When I started my car back up the CEL ...
3 votes
1 answer
285 views

Is it really necessary to resurface cylinder and substitute piston?

I believe this is common in motorcycle maintenance, I have heard in some places that, once you get the piston outside the cylinder there is no way back, you need to resurface the cylinder and get a ...
8 votes
2 answers
273 views

Cylinder misfire after leak down test

I am getting cylinder misfire OBDII error codes after performing a cylinder leakdown test. During the test, I was turning the crankshaft to reach TDC for each cylinder and I'm now thinking whether it ...
4 votes
1 answer
98 views

Is this the correct brake union for my cylinder?

I'm replacing the rear brake cylinder on my 2004 Hyundai Getz 1.3. Although the cylinder comes with the bleeder nut, it doesn't come with the union nut that is used to connect the brake hose to the ...
5 votes
1 answer
685 views

Stuck valve, loss of pressure. Risky or only poor performance?

I have a 1998 Toyota Tacoma 2.7L 4cyl with 202,000. The engine has been running rough and will occasionally sputter and die when I let off the gas pedal. I had it diagnosed and they think it's a ...
5 votes
2 answers
2k views

Cleaning pistons and cylinders with oven cleaner

Can I use oven cleaner (composition: 5-15% aliphatic compounds, 2-aminoethanol, butane and propane...) to clean the carbon off the cylinders and pistons of my BMW R80GS 1991 Motorbike (without ...
5 votes
3 answers
8k views

How to fix an injector leaking into the manifold?

I suspect I have an EFI common rail injector that fails to hold pressure and slowly leaks petrol into the manifold when the engine is shut down (and possibly while running). I am interested in why ...
4 votes
1 answer
1k views

How bad is 30% cylinder leak?

I recently performed a cylinder leakdown test searching for a cause for oil loss. On 5/6 cylinders, I pumped it up to 90 psi on the left gauge and the right gauge was between 75-80. Only 1/6 wouldn't ...
8 votes
4 answers
5k views

Cylinder leak down test to detect oil leakage

My 2007 Tacoma loses about 3.5 qt of oil out of 5 every about 1500 mi. I know it's low because the engine starts periodically rattling, I don't know which part but it's 100% correlated to the low oil ...
7 votes
1 answer
1k views

Small crack/gap between cylinders on block

I was doing a head gasket replacement onnmy 86 Kawasaki ninja gpz1000 and I while cleaning the gunk off the top of the block I noticed a small gap/crack in between two cylinders (Pictures are linked ...
15 votes
2 answers
2k views

Why is a W-16 called, well, W?

The term "W-16" seems to imply some sort of configuration that resembles the letter W, which implies three banks of cylinders with one sharing a common cylinder head. In fact, the Bugatti W-16 in the ...
5 votes
1 answer
4k views

Engine consuming oil and white smoke comes out when starting the engine while cold

my car has been consuming oil for a while now but only recently has started to smoke when it is started while the engine is cold. I thought that maybe because I am using a synthetic oil in a high ...
15 votes
3 answers
5k views

Afraid to crank engine - how can I tell if my cylinders are flooded with water?

Backdrop We had really heavy rains here today. I was in my '99 M5, idling in traffic when I noticed the brake pedal feel became really notchy. When I let go of the brakes the pedal would not travel ...