General internal combustion engine questions.

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2
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0answers
15 views

My BMW X5 won't stay running

Hello I have a 2003 BMW X5. I just got the engine replace a couple days ago. I went to pick it up but because the shop was done installing the motor but now I have to deal with the other problems I ...
0
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0answers
9 views

changed my engine in my 2009 Volvo s40 lost power

I had an engine issue and end up changing my engine in my 2009 Volvo s40 The new engine does not have the same power that the other one had.. When acceleration in the highway It feels so slow until ...
1
vote
2answers
34 views

Which Engine is more powerful?

Engine A Specifications: Displacement: 1198 CC Max Power (bhp @ rpm): 87 @ 6000 Max Torque (Nm @ rpm): 110 @ 4800 Engine B Specifications: Displacement: 1197 CC Max Power (bhp @ rpm): 82 @ 6000 ...
2
votes
1answer
420 views

Does stalling damage my car?

I sometimes stall my car, as I have a new one and the biting point is so high. Anyway, someone told me stalling damages my car, but all it does is force the engine to a stop... Does constant ...
3
votes
2answers
45 views

What are the implications of driving through flood water when I have a high air intake?

My 2003 Opel Agila 1.2 Petrol, has a high air intake. Here is the approximate location of it: [ Here is the engine bay, showing the air intake on the left. Is the height of the bottom of the ...
1
vote
0answers
17 views

2000 Toyota Celica GT stalls with acceleration few minutes after starting

I have a 2000 Toyota Celica with about 180k miles. When my car has been off for a few hours and I try to start it up, if I try to press on the gas (either in drive, reverse, or park) within a few ...
2
votes
1answer
46 views

ENGINE OIL BEEN FOUND IN THE RADIATOR

what could be the possible cause of oil leaking into the radiator when the engine is running. I have changed the O-rings on the oil cooler and pressure tested the cooler
1
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0answers
14 views

Changing Freeze Plugs on a Mazda 626

On a 98 Mazda 626 4 cylinder 2L engine where are the freeze plugs and how hard is it to replace them?
6
votes
2answers
136 views

How do modern engines differ than older ones

Modern engines produce more horsepower with more fuel economy but with the same procedure of burning the fuel air mixture and moving the piston, but the old ones and new ones are both four cylinders ...
2
votes
2answers
45 views

Needle Going Wild in Engine Vacuum Test

My '96 Saab 900S has multiple symptoms, and I suspect multiple problems. For one thing, it gets the error code: P0422 Main Catalyst Efficiency Below Threshold (Bank 1) I made a video of my vacuum ...
-1
votes
0answers
17 views

Ford explorer 4.0L working battery engine wont turn over

After getting home last night I parked my car as usual. The next day I went to start it and nothing happens. All interior lights and Windows work so it's not the battery. Anyone have any idea what I ...
3
votes
1answer
38 views

How often to start/drive a vehicle to keep it healthy?

In order to keep a gasoline-powered vehicle healthy, how often does it need to be started or driven? Please specify if it actually needs to be driven, or if just starting it and letting it run is ...
0
votes
3answers
55 views

Do I have battery or engine problems?

Yesterday, I used my car to drive literally 2mins. Away from my dorm building to get to my class building and back because of bad weather. 30+mins. Later I come back outside and use my remote to ...
2
votes
0answers
35 views

Engine Running Fast in Park

Never had this issue before but I just started my vehicle and the tac automatically revved up to 1500 rpm when I cranked it. It didn't go back down while in park, it basically idled at about 500 rmp ...
2
votes
0answers
42 views

Why is lugging hard on connecting rods?

I was researching the effects of lugging and came upon this thread, one of whose answers claims that lugging is really hard on the connecting rods. but without explaining why. Can you explain ...
4
votes
2answers
113 views

What damages may I have caused draining oil by filter?

My ATV oil drain plug is an allen 6mm bolt. The bolt was all rusty, and what I expected to happen happened - I stripped it. Instead of wasting times trying to remove the stripped bolt I drained oil ...
0
votes
1answer
62 views

MG Rover Immobiliser removal

I have a 2003 MG Rover Streetwise, I need to remove or at least completely bypass the OEM Immobiliser. Driver door lock is broken due to attempted theft, so no point trying to enter the code, the key ...
2
votes
2answers
69 views

Why use a 12-cylinder engine over a 8-cylinder engine

When I look at Laborghini Veneno and compare it for example to the Ferrari 458 Italia I can see that Lamborghini used a V12 while Ferrari placed a V8 inside the 458 Italia. I wonder why Lamborghini ...
2
votes
0answers
19 views

Inconsistent warm engine tick sound in 2013 F-150

I'm the original owner of a 2013 Ford F-150 XLT 3.7 which now has 30,000 km. After the last oil change, the engine is making an inconsistent tick sound when warm and also vibrates a little. The ...
0
votes
0answers
42 views

Losing power on acceleration and top end speed

I have a Big Boy GPR 250. When I ride the bike, I can feel a clear lack in power when accelerating. Also, revs are very low when riding at top end. I've also noticed my top end has lowered by 20kmph ...
3
votes
3answers
55 views

After five years in garage diesel car wouldn't start, what should be done?

One of my friends left his car in the garage since five years back and he has lived abroad since then. He left it with a full tank(its a diesel), and it ran perfectly well back then. Now he's back and ...
4
votes
2answers
433 views

Parking a motorcycle with hot engine

I have a question regarding my motorcycle (Yamaha FZ8 - 4Zylinder 800cc). At the weeksend I was driving through a town. It was very hot outside and I parked the bike. The coolingwater-temperature was ...
2
votes
1answer
43 views

Milky Oil in the radiator - Mazda 323

My vehicle has oil in the radiator and I have checked the head gasket matter fact I replaced it with a new one and there still is oil In the radiator may I ask what could be another reason for oil to ...
2
votes
2answers
71 views

How Much Liquid Can I Put In My Cylinders Safely?

I wanted to do a little bit of a "scientific" test to see how well a homebrew seafoam type mixture will dissolve carbon deposits on the cylinder crowns. I thought of simply taking the plugs out and ...
5
votes
2answers
242 views

Reboring a cylinder: compression ratio of new piston

I'm going to have the cylinder of my 2004 TT600RE motorcycle rebored (because it's damaged, not to increase power). The manual says the piston size is 95mm and the compression ratio is 8.5 : 1. I'm ...
2
votes
3answers
41 views

Popping Sound when A/C is on - 2009 Kia Rio

I've noticed that, when I first start my car, there is an intermittent popping or clicking sound coming from up near the engine (sometimes it almost sounds like a very quick burst of air escaping a ...
4
votes
2answers
88 views

Effects of Dirty Piston Heads and Intake Valves

What are the effects of dirty ( allot of carbon build-up ) piston heads and intake valves? I just used an endoscope to take a look at my piston heads while changing my spark plugs and the heads had ...
3
votes
1answer
31 views

Machine turns off randomly and won't start after staying off for a while

It all started about a year ago. I had to go to another city and the drive was about an hour long, it went perfectly fine. I left the car parked on the sun for about 2 hours, nothing special, on a ...
2
votes
0answers
36 views

How to remove engine cooling fan from a W169 Mercedes A-Class

How do you remove engine cooling fan from A-Class Mercedes W169?
2
votes
2answers
48 views

Car wont turn over after trying to get it out of snow

I have a 1998 Mustang V6. Last winter I attempted to get it out of the snow on an inclined driveway. I revved it apparently too hard and the engine sputtered for a moment and stopped. Since then it ...
-1
votes
2answers
30 views

BMW 320d es auto engine size

I would like to know how to tell engine size of a BMW. I only buy cars a 1.9 litre or smaller engine.
3
votes
1answer
53 views

Shortblock vs Longblock

What is the difference between a shortblock and a longblock? Both terms are used to refer to the engine, but what's the difference between them?
5
votes
2answers
777 views

Do valves rotate over time?

As I was doing my valve servicing, one question came to mind: As valves undergo millions of cycles of reciprocating motion, do they actually rotate or is their position relative to the seal fixed? Or ...
1
vote
2answers
42 views

Dodge Stratus 2000 shaking at idle after timing belt replacement

I have a Dodge Stratus 2000 SE 2.4 L with 150,000 miles on it. I decided to change the timing belt and water pump, since my mechanic told me to do so because of the mileage it had on it. Anyways, I ...
5
votes
2answers
77 views

Water leaking into frame case/engine?

I just had my 2012 Mini Cooper S (66K miles) repaired last week last week for a failed/leaky water pump. My car had an episode where it overheated and shut down and wouldn't start after pulling over ...
5
votes
2answers
556 views

Why would I paint my car engine?

I've been watching Pete's Garage on YouTube and the guy is absolutely amazing and very enlightening on the subject. He has at least one video on engine painting but he mentions it in a number of ...
2
votes
0answers
30 views

2009 Kia Rio - Potential Misfiring?

I have a 2009 Kia Rio with ~75,000 miles. After I first start the car and accelerate away from where it was parked (especially if I accelerate hard), the car will repeatedly make a quick sound that ...
1
vote
2answers
51 views

Car won't start, dies after jump

I have a 2007 Ford Mustang, 6 cylinder. A few hours after I drove it, the battery was completely dead. It can start with a jump, but if left to idle the engine stops soon after the cables are removed. ...
1
vote
1answer
21 views

Are valve guides normally reusable?

A valve assembly diagram from my Tacoma FSM designates valve guides as non-reusable. I was wondering if that is just a CYA or really the case.
3
votes
0answers
61 views

Minor grinding noise and vibration when car is idle

I have a 2005 stick shift Toyota Camry. Sometimes when I am at a red light or stop sign and the car is in neutral I feel a slight vibration from the pedals and a slight grinding noise coming from the ...
2
votes
2answers
100 views

Engine jerking and revving, multiple failed ignition coils

This problem started a month ago. My Aveo started revving and jerking when it was sitting at a light on my way home (2 blocks from my house) and the engine light came on. I drove it home. The next ...
5
votes
2answers
204 views

Effects of leaky exhaust valves

While rebuilding my valves, I noticed that 4 out of 6 exhaust valves on one side of the V6 engine were leaking after lapping and I had to relap them. I determined that by doing a water test. I am ...
5
votes
1answer
39 views

Reliability of water test for valve seal

I took my valves out, cleaned and lapped them and put them back together. I also put new valve stem seals. At least on one side of my V6 Tacoma. I performed several water tests to check the seal of ...
3
votes
1answer
24 views

Timing Sprocket Marks Disagree with Distributor for TDC

I am in the middle of replacing my 1998 Dodge Dakota 39. V6's timing set. According to the manual and everywhere online, the camshaft sprocket dot should be at the bottom and the crankshaft ...
2
votes
1answer
78 views

Engine run-on (dieseling) condition suddenly getting much worse

1995 Chevy S-10 Blazer - 4.3 L Vortec V6 (vin W with PCM) - 230,000 miles original owner. OBD-I (or 1.5) GM transitional year with OBD-II style connector. I've been working on my vehicle a lot ...
1
vote
1answer
25 views

what engine came in 2007 chevrolet avalanche LTZ?

I have a 5.3 Liter engine from a 2007 Chevy Avalanche LTZ. I removed it and swapped in a 6.0 for a customer. What is the name given to this V8? It has an aluminum block and cast 243 heads. I need to ...
2
votes
1answer
37 views

When to Use a Sleeve 'N' Seal?

A Sleeve N Seal is a thin-walled metal ring ~1" deep with an accompanying tube of "seal". It comes with some timing cover gasket sets. To install it, you heat the ring up in the oven on 500 degrees ...
4
votes
2answers
89 views

Is it reasonable to charge the customer $1000+ to assemble the top of the engine?

I recently have an engine overheat issue and see my previous post for details: How long does items in the engine last in general for standard size cars? This is an interesting follow up on that at ...
2
votes
1answer
27 views

1999 Ford Expedition 5.4 sparkplug/ignition coil replacement

I got a service engine soon light and and scanned it. It came out to be cylinder 5 misfire. My truck shook a little on idle more when I gassed it. I talked to some mechanics and told me it would be ...
3
votes
1answer
60 views

VW Golf IV Possible Engine Misfire

I guess I better start with a few details on the car in question: VW Golf IV 20 valve V5 petrol engine (2.3L) ~80k miles on the clock Now the problem, it feels to me as if the car is down on ...