General internal combustion engine questions.
0
votes
1answer
6 views
Safe way to clean oil sludge around the engine?
My Case 85xt Skid Steer has a hydraulic leak somewhere but the engine area is covered in oil sludge so I can't tell where it is coming from. Is it safe to use de-greaser and or water around the engine ...
1
vote
3answers
37 views
Remove rounded manifold bolt
I'm trying to take off the manifold bolts on an old Chevy 350 (the ones that connect the manifold to the header). I got 4 out of the 6 bolts out, but 2 are extremely struck and rounded due to all the ...
2
votes
1answer
44 views
2000 VW Golf TDi (Mk. 4) grey smoke from exhaust before engine has warmed up
I have had my Golf for 8 years. It’s had good maintenance and a the record is kept by my dad. It’s just passed its MOT (Ministry of Transportation) test, and the mechanic mentioned that the tappets ...
2
votes
2answers
82 views
High-pitched squealing coming from engine
I Have a Datsun Safari 1983 2,8L petrol.
Recently I was driving off road with it and the next morning the fan belt was making this squealing noise. So I adjust it and all was well. 300km later a new ...
2
votes
1answer
31 views
How do I find a vacuum leak? I'd highly prefer not to use a carb cleaner spray
The car is a 1998 Oldsmobile Intrigue with 3.8L V6 engine (3800 Series). I've been doing my research and due diligence, but please understand I'm very inexperienced with automobiles.
I went to ...
3
votes
1answer
55 views
OHV vs. OHC: which is faster in speed, horse power?
What are the main differences in OHC and OHV engine designs, and which is faster or more powerful? Also, which is more reliable?
0
votes
1answer
12 views
engine speeds on startup (wont idle) after sitting for years - 1986 honda civic
Engine speeds on startup (wont idle) after sitting for years - 1986 honda civic.
As soon as I turn the key on it will keep speeding up higher & higher.
2
votes
1answer
70 views
Honda Odyssey engine cut out
I have a 1997 Honda Odyssey automatic, it stopped running in the middle of the road and when I tried starting it again it made a loud whining sound, then I turned the key off and tried again and it ...
2
votes
1answer
19 views
SB350 cutout at freeway speed, revs fine in neutral
Was hoping someone could help me out with an issue I'm having since I'm running of ideas...
In case it helps, its a 71 Nova with a small block 350. Carbuerated and HEI, without any computer chips or ...
1
vote
1answer
29 views
Diesel Engine difficult to start
I have a diesel powered Audi A4 B7 (2006) 2.0TDi (the 170BHP variety) with a manual gearbox, which I've owned for around 18 months. The car has just short of 100k miles and has a full dealer service ...
0
votes
2answers
42 views
VW 1.4 TSI EA113 Variations
What does VW do to improve HP and Torque from their 1.4 TSI engine?
e.g.:
CAXA:
90 KW @ 5000
200 NM @ 1500-4000
CAVD
118 KW @ 5800
240 NM @ 1500-4500
0
votes
1answer
25 views
Can an Idle Control Valve cause backfiring and can it be cleaned
I am pulling codes for my engine indicating a faulty idle control valve. The vehicle at idle seems to hunt jumping between about 800rpm and 1100rpm. It happens maybe every 20 seconds.
If I accelerate ...
2
votes
1answer
302 views
Identifying American (Mercury) Mariner outboard
We have Mariner 9.9E outboard motor. Having hard time figuring out year and Yamaha equivalent (early Mariners were Yamahas in disguise). There is very little information on those, and it is hard to ...
2
votes
2answers
61 views
Holden Commodore not moving
I own a petrol powered Holden Commodore car 1998 model and it worked fine till last week. Suddenly it stopped moving freely.
When I press the accelerator up to 30% it makes noise but doesn't move. If ...
-1
votes
2answers
49 views
What do these lights mean?
When I stop the car (by hitting the brake pedal), the engine all of a sudden stops while on drive. Here are the lights I get:
What do they mean? Is it a battery problem?
6
votes
3answers
2k views
Why does a Turbocharger only produce boost when the engine is under load
As per the Title.
Why does a turbocharged car only produce significant boost whilst the engine is under load. Is is something to do with how much exhaust is being produced or is there some kind of ...
4
votes
3answers
3k views
What would cause a car to lose power a few seconds after starting, then run normally?
I start my 2003 Honda Civic each morning and drive to work. A few hundred feet down the road, the engine will sometimes behave as though it is running out of gas and lose power momentarily. It ...
0
votes
0answers
19 views
How do I reset/reduce the timing on gtr33?
I have a gtr32 which is giving me sleepless nights.
It misfires a lot and I've tried almost everything.
I googled my problem and some sites suggested I reset or reduce the ignition time.
How do I ...
1
vote
0answers
43 views
Toyota Avensis Intake Manifold Rattle Fix - quesion about gasket
I have a Toyota Avensis which has the intake manifold rattle problem. I asked the dealer for a price on the new part and he quoted me €400. From a breakers yard they are hard to get and the going rate ...
0
votes
0answers
51 views
Audi a5 2.0 tfsi - popping noise from engine
I bought this Audi a5 and it has caused nothing but trouble.
Initially it would violently shake, had problems starting, and the spark plugs fouled up.
After replacing the blades on the manifold it ...
4
votes
2answers
176 views
Car randomly stalls (driving or stationary), then generally kicks back in or starts back up straight away
I have an Australia-built Ford Falcon which has a 4.0L multi-point fuel injected straight 6 and is manual. I rebuilt the head in the car myself last year (blown head gasket) and it has been running ...
8
votes
5answers
2k views
My car's coolant temperature reaches almost 100 C / 212 F in a fast pace
Today, after a very hot day, I saw that my coolant was almost reaching 100C/212, I pulled over, stopped and took a look over the hood. The very little water that remained in the coolant tank was all ...
1
vote
1answer
31 views
2003 Acura TLS running hotter than usual
I'm having some concerns with my car's engine temperature. Last weekend after being stopped at an intersection, the engine temperature went up higher than usual, about 75% of the way to the red line. ...
3
votes
1answer
1k views
2009 Toyota Camry 2AZFE idle vibration remains after new motor mounts
My wife's Camry went in to the shop 2 months ago for a rough idle. We bought the car used in February with 72K miles. We've put on 10K and decided to have a mechanic look it over and tell us what it ...
5
votes
5answers
3k views
How to get a motor to Top Dead Center
I'm not sure how specific to my car this is or not, so I will include my car information just in case: It's a 1991 Honda CRX, base trim(the motor is the d15b2).
On to the question: How do I go about ...
4
votes
0answers
70 views
Really high idle after tightening spark plugs
I had a very nasty tick in my engine after doing a bunch of work to it, I just redid my chain tensioner which went a long way to fixing it, then I found that spark plugs could cause a tick, so I ...
3
votes
1answer
79 views
How often should spark plug wires be replaced?
I last replaced them with the plugs about 4 years/60-70k miles ago. I bought platinum plugs I if I remember correctly, so I still got some life on those. The car (2001 Buick Regal) is still in good ...
2
votes
0answers
44 views
Brake Specific Fuel Consumption of 2-stroke vs 4-stroke
How much fuel do various types of engines burn per power output? I'm especially interested in naturally aspirated piston engines, and comparing two-stroke to four-stroke.
The wikipedia article gives ...
2
votes
1answer
26 views
Cold start Squeak noise
I have an 04 Toyota Camry Solara. The car is in very good condition at 165k miles. Although since two winters ago I have noticed only in the cold mornings when I first start the car there is like a ...
4
votes
1answer
71 views
When I remove a spark plug is it bad news if dirt or grime falls into the engine
Despite my best effort to clean up a corroded spark plug and blowing the area with an airline before removing would it be bad news if dirt or grime falls into the engine in the process of removing it?
...
0
votes
1answer
35 views
How to know if a '97 Ford Escort Engine is Federal Emissions or California Emissions
I did a search on the VIN and the engine type is listed as: 2.0L I4 SPI
Can anyone tell if it is California or Federal Emissions? From what I've been told they have completely different intake ...
2
votes
0answers
24 views
Maxima (2002) MAF Sensor Failures
I have a 2002 Nissan Maxima that I've owned since 2003. I'm now on my sixth Mass Air Flow (MAF) sensor. What seems to wipe them out is hard acceleration (3/4 throttle - not so extreme as to induce ...
7
votes
3answers
2k views
Is Start & Stop technology good or bad for my car? (Alfa MiTO)
I was recently in the lucky position to obtain an (almost brand new) Alfa Romeo MiTo, Progression. Like many new cars coming out these days, it has "Start & Stop" technology that turns the engine ...
6
votes
2answers
83 views
What is the likelihood that my crankshaft is warped?
This may be an involved question so bear with me. :)
I have a 1998 Honda Accord EX (4cyl) with 281xxx KM, and last week I was told by my mechanic that the harmonic balancer is warped. And in fact, ...
4
votes
1answer
151 views
Misfiring Engine Hyundai Accent Executive
My Hyundai Accent Executive is 2001 model. Recently the engine started misfiring badly during idling with Air conditioner on. It is almost like the engine is going to turn off any moment. The ...
3
votes
3answers
97 views
How reliable is a second-hand Subaru 2.5 RS 04-05?
Basically, I've been a Subaru enthusiast for a few years but never been able to purchase one because I'm still a student. However, this summer I will be able to.
The issue is that I need a reliable ...
1
vote
1answer
51 views
Why there is no injection on 1st and 4th cylinders in Fiat Punto?
I have Fiat Punto 2 1.2 with LPG (sequence, stag 4).
There is problem with the injection on the 1st and 4th cylinders. Sometimes it works and sometimes it doesn't. 2nd and 3rd work without problems. ...
12
votes
4answers
8k views
What are the risks of overfilling a small engine with oil?
I recently overfilled a 4 stroke lawnmower engine with oil. It has been run for about 1.5 hours while overfilled. It smokes a lot right after being started but after 30 seconds or so the smoke clears. ...
1
vote
0answers
48 views
do all quattros have shafts connecting front and rear axles
I have recently purchased a 2009 Audi A5 Quattro, and in looking underneath the car there does seem to be a place for a shaft to connect the front axle to the rear axle (which you would expect) but ...
6
votes
7answers
1k views
What would cause motor mounts to go out on a factory engine?
I got my factory motor mounts replaced on my 2000 eclipse at 175k miles. I am now at 189k and the mounts blew again. I can hear the same rattling and squeaking.
I had the spark plugs and valve cover ...
2
votes
3answers
82 views
What kind of gasoline additives will help maintain the engine efficiency/life?
Aside from the traditional maintenance of oil changes, and keeping fluid levels correct - what else will help prolong the engine's life?
I recall a few years back gasoline additives were the thing to ...
4
votes
2answers
29 views
'93 Ford Ranger 3.0L V6 Engine Only Runs Without Fan
I've recently replaced the belt tension pulley and a little after a week the engine had trouble running. The next day I tried to start it it wouldn't run without constantly pressing on the gas while ...
0
votes
0answers
70 views
Buzzing Sound coming from Nissan Altima engine after accelerating
I have a really sharp buzzing sound coming from my 2006 Nissan Altima engine. The sound starts and stays around as soon as press the accelerator. Doesn't go away until I turn the car off. I know ...
5
votes
2answers
114 views
Estimate for head removal / reinstall
In changing the spark plugs in my 2000 Ford Mustang GT (4.6L), I sheared one of them (number 3)
The ceramic is totally removed, as is the hex nut. The threaded portion as well as the ground electrode ...
0
votes
1answer
233 views
Top Speed varies even when using the same bike
I own a Hero Honda CBZXtreme bike. The top speed that I have reached is 122Km/Hr. But I am not able to reach this speed always. Sometimes the speed does not even cross 105 Km/Hr while travelling on ...
3
votes
4answers
168 views
Why can some cars go through water while others can't?
Why can some cars (mostly old Russian cars on YouTube) seemingly go through water while others can't? I'm talking about situations when the water level is at half the height of the car, so the engine ...
3
votes
1answer
873 views
Car dying at low RPM only after filling up with gas
My question is closely related to one about a Jag dying at low RPM, but is slightly different because it only occurs after refueling and because the problem persists after cleaning the throttle body, ...
2
votes
3answers
82 views
What modifications need to be made to an engine to enable higher safe RPMs?
I first had this question while playing a racing game - it was a touring race with BMW 320i's, and I noticed that I could rev up to 8,500 RPM before shifting gears. Now my car (an older 320i), ...
3
votes
1answer
33 views
Is there a place where I can buy new stock GM Engines?
I am looking into a new project, and one idea that was tossed around is to replace the motor on the truck with a FlexFuel model. I looked around and see gmperformanceparts website, but they don't have ...
3
votes
3answers
163 views
why do engines have so much unused horsepower?
I've looked at the power rating of an engine used in a Humvee (5500 lbs) and was surprised it's only ~190 horsepower, which is exceeded by many 4 door sedans.
So an obvious question is why doesn't my ...
