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Questions tagged [lubrication]

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what's the best lubricant for door locks? [duplicate]

I'm looking into door lock lubrication and protection. I'm having a hard time deciding between what to use. I watched a few videos on this. A professional locksmith used dry ptfe lubricant spray after ...
LVX-001's user avatar
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2 votes
0 answers
65 views

How can free up a stiff drive-belt tensioner. Is there a suitable spray or lubricant I can use?

I have a drive-belt tensioner, on a K7M 1.6 8v, which was initially not moving to allow me to re-place the serpentine-/drive-belt. I managed to get it moving, but it's still a little stiff. Can apply ...
Jim's user avatar
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3 votes
1 answer
393 views

Is there any particular advice on crank-bolt lubrication I should know?

I have a new crank-bolt to install following a timing-belt replacement. Should I be lubricating this bolt? And if so, what kind of lube should I look for?
Jim's user avatar
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2 votes
2 answers
438 views

can i use api CJ-4/SN in a gasoline car?

I have an old gasoline car which require SAE 15w-40 engine oil, but such an oil for gasoline engine is not available in my country. I recently found some diesel oil which has API CJ-4/SN or other ...
Mohammad M's user avatar
0 votes
1 answer
64 views

Reassembly lube very thick in cold weather

Last night it was around 40 F and the reassembly lube (Permatex) I was using to butter the cylinder head parts was VERY thick and difficult to smear, even with a small paint brush. Should I put it in ...
amphibient's user avatar
  • 6,663
1 vote
1 answer
212 views

Do few pull starts with fuel and ignition off cover the cylinder in oil in a splash lubricated small engine?

Some 1-cylinder small engines have instructions that before long-term storage you should take off the spark plug, pour few milliliters of oil into the cylinder, and very slowly pull the starter cord (...
juhist's user avatar
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1 vote
2 answers
318 views

How do splash lubricated horizontal crankshaft engines lubricate the valve mechanism?

In many small engines, splash lubrication is used unlike in cars which always have an oil pump. I understand that when the small engine is a vertical crankshaft one like in lawnmowers, where the ...
juhist's user avatar
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0 votes
1 answer
69 views

Is car motor being lubricated with ignition off?

Is it ok to run car with ignition off (turning it off while in gear)? Or is oil pump electrical and stops running as soon as ignition is off?
Ri Di's user avatar
  • 131
3 votes
1 answer
1k views

Assembly lube for engine that has been sitting for years

I have an engine that has been sitting in my garage for some years, and I'm finally going to get some time to work on it and put it back together. The engine's top end is disassembled, but I did not ...
Edward's user avatar
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0 votes
1 answer
104 views

Lubricating inside valve tappets/shims

Toyota engines come with tappets to shim between the valve rods and the camshaft. They look like small cylinders and are about the size of 2 oz shot glasses. When installing them on top of the rod ...
amphibient's user avatar
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2 answers
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Can an engine run without oil for a few seconds, if the oil change was just done

I accidentally started up my engine after draining the oil and inserting the oil filter. I know that running an engine without oil causes the parts not to be lubricated and thus, causing damage. In my ...
Luke's user avatar
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1 vote
1 answer
2k views

techniques to fix a plastic rattle that's intermittent over bumps?

What are good ways to fix a rattling sound from plastic parts that happens intermittently on bumpy roads? The rattle seems to come from the plastic cover around the steering column (2020 Tesla Model 3)...
Jerry101's user avatar
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1 vote
0 answers
45 views

Choice of lubricant for model „diesel“ fuel

I bought some old small combustion engine for model cars/boats/airplanes. They are not operated using nitro fuel and flow plugs but simply by the (adjustable) compression of the fuel which is why they ...
Yanick Salzmann's user avatar
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0 answers
149 views

If I use synthetic/food safe grease will my front end loader or backhoe have excessive wear?

I have a small tractor with a frontend loader and backhoe that gets used near our house's well and natural creeks/drainage areas. I wouldn't mind paying the premium for synthetic grease to try and ...
STW's user avatar
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2 votes
2 answers
142 views

How to lubricate a plain bearing

I am trying to repair a squealing heating blower motor. The shaft doesn't have feel-able tilt play in the bushings, so I suspect the bushing isn't yet worn out. The shaft looks scratched, but I barely ...
Martin's user avatar
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1 vote
2 answers
130 views

Gear oil or engine oil for friction surfaces in rebuild?

I have an engine that i need rebuilt. I need assembly lube but nowhere close sells it and waiting for it to ship here is not much of an option. Should i use normal 15w-40 engine oil that the engine is ...
stephen's user avatar
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1 vote
1 answer
1k views

What are the dangers of too high TBN?

According to Wikipedia, Total Base Number (TBN) is a measurement of basicity that is expressed in terms of klk number of milligrams of potassium hydroxide per gram of oil sample (mg KOH/g). TBN is ...
ManRow's user avatar
  • 303
1 vote
1 answer
85 views

What is this substance and does it cause a musky/dusty smell in car?

My car has a smell in it which I dont like. I dont know if it should be described as a musky smell because some may describe as a fragrance and others as dusty. Anyway I cant pinpoint what it is ...
James Wilson's user avatar
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3 votes
1 answer
3k views

Grease/lubricate rubber stabilizer bar bushings?

I just bought a set of these bushings to replace the worn-out ones in my front stabilizer bar. The set did not include any grease or lubricant. The manufacturer doesn't state the construction ...
autobottodoggo's user avatar
3 votes
3 answers
894 views

Will greasing clutch parts make it softer

I have a Subaru STI 2009 with 180k kilometers on it a very hard clutch, closer to a truck than a usual car. It works fine and has been that way for at least the two years I've had the car but it is so ...
Johnride's user avatar
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1 answer
2k views

Is it bad to roll down a hill at highway speed in neutral or with the clutch pedal down in a manual transmission?

The problem with this question is that it has been answered lots of times by people who don't know what they're talking about, so I thought I'd ask here in hopes that somebody understands the question ...
stu's user avatar
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0 votes
2 answers
35 views

Moly-based assembly lubricant to cutting lubricant

What's the difference between a Moly-based high pressure assembly lubricant and a heavy duty cutting lubricant, can cutting lubricant be used in place of assembly lubricant or visa versa or is the ...
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2 votes
1 answer
76 views

Design logic of the oil dispensing can's extra long spout which has no nozzle plug?

The images I'm referring to are shown below: At a Hero Honda service center, I saw the mechanic using an oil can like the one in Figure 1. A cousin also said he used a similar one, so I purchased it ...
Nav's user avatar
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2 votes
1 answer
3k views

When should assembly lube be used?

I will be opening up the top of an engine to clean the ticking lifters. To do so, I have to remove the camshaft. I have seen several people use assembly lube on the camshafts lobes and 'fixation ...
AmiguelS's user avatar
  • 203
2 votes
2 answers
1k views

Dark thing keeps flining off the motorcycle chain

I've lubed a chain on my motorcycle a few days ago, but there's a dark thing keeps flinging all over the swingarm. I'm wondering what it might be? If it's the chain lube flinging all over, then why it ...
qwaz's user avatar
  • 229
1 vote
2 answers
2k 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'...
Erik's user avatar
  • 293
2 votes
4 answers
87k views

What spray/lube to use on electrical connectors

In several videos, I've seen them spray those dreaded electrical connectors. I'm assuming it's to help disconnect them. I've searched and can't find any specific electrical connector spray. I found ...
mhost's user avatar
  • 173
0 votes
0 answers
72 views

Does an engine with lower viscosity oil require less warming up?

I have always seen that an engine should be driven gently (low throttle, low revs) for about 15 minutes after starting, in order to bring the oil up to temperature and lubricate the engine properly. ...
James Monger's user avatar
2 votes
1 answer
985 views

Speedo goes crazy. Needs lubrication. What do I lubricate it with?

I have a mid-90s econobox which still has a mechanical speedometer. In cold weather (sub-50F/10C) the speedometer will sound really squeaky, and above a certain speed (30-60 depending on cold) the ...
Harper - Reinstate Monica's user avatar
1 vote
1 answer
82 views

How widesread are truck ALS systems today?

Talking specifically about such non-exotic vehicles as long distance semi-trucks, city buses etc., what is the today's de-facto standard with regard to availability of Automatic Lubrication Systems on ...
AnT stands with Russia's user avatar
1 vote
0 answers
99 views

What effect does exposure to the elements (hot sun & rain) have on cars and motorcycles?

Place: South India. Situation: Parking in an open space with no shade, morning to evening. Temperature: 30 to 40 degrees Celsius. I have parked my car under the hot sun for a week, and I noticed ...
Nav's user avatar
  • 1,431
4 votes
3 answers
60k views

Should I use lubricant or not when installing these spark plugs?

This is question came up while trying to diagnose ignition coils unseating. I used anti-seize lubricant on the currently-installed spark plugs. I'm planning to install a new set of three NGK DCPR8E ...
alx9r's user avatar
  • 183
1 vote
2 answers
3k views

Bearing features (2RS versus 2RSH)

I have done sufficient googling to discover that a -2RS bearing is one with two rubber seals. I haven't ascertained much beyond that. For an application currently using a 2RSH bearing, can I replace ...
Brian G's user avatar
  • 13
2 votes
1 answer
1k views

Best lubricant for trailer hinges

I bought a small cage trailer without a roof about a year ago -- used but in good condition. What is the best lubricant for the hinges of the trailer cage door? (Perhaps graphite or white lithium ...
Chris117's user avatar
2 votes
3 answers
527 views

What is the first point of failure on an engine?

I'm curious, if serviced properly, for example every six thousand mile oil change, what would be the first thing to fail on an engine, my guess would be valve stem seals as they are not metal but I’m ...
ceefax12's user avatar
  • 1,242
2 votes
1 answer
624 views

Can motorcycle engine be tilted by 90 degrees?

I am referring to a modern oil-cooled motorcycle engines. Is it correct to suppose that a lubrication flow is gravity-assisted and by tilting the engine block 90 degrees I would render the engine ...
FlegmatoidZoid's user avatar
3 votes
1 answer
862 views

How to tell the Difference: Condensation Drain Vs Lubrication Hole

I have an old medium sized 1/2 HP electric [motor]. On the bottom, on both ends, there is a small (couple millimeter) hole blocked with red plastic plugs. They are on the same side as the mounting rig,...
Jonathon's user avatar
  • 217
11 votes
4 answers
73k views

Should I use open engine oil that was left over from previous oil change

So, I have accumulated 4 Liter engine oil which are left overs of previous oil changes. I have accumulated these amount in 1 year. So should I use it or not? I use Mobil 1 full synthetic 0w 40. ...
Sadat Mainuddin's user avatar
4 votes
1 answer
582 views

Engine oil requirements

I ride a 2015 Yamaha FZ-07 (around San Francisco / Bay Area), which is water-cooled and supports 10w30, 10w40, 10w50, and 20w50 motorcycle oils. However, the manual says not use 10w30 oil when the ...
ManRow's user avatar
  • 303
8 votes
5 answers
2k views

Is WD40 a penetrant?

An outer tie rod is bound (screwed into) the inner tie rod as described in this previous posting. WD40 was sprayed at connection between the two tie rods and the jam nut was loosened. Attempts to ...
gatorback's user avatar
  • 1,267
5 votes
1 answer
77 views

Do good shocks have any oil below the top half?

Is oil below the top half of shocks indicative of failure, or is it supposed to be visible? One repair tech said that any oil below the top half of a shock indicates failure. Another repair tech ...
End Antisemitic Hate's user avatar
8 votes
1 answer
13k views

Which grease should I use on wiper mechanisms?

The front wiper mechanism on my 1988 Porsche 944 has become a bit slow moving and I plan to fix it. On my car the wiper crank arms go through sockets in a frame, the crank arms are moved back and ...
GdD's user avatar
  • 17k
6 votes
1 answer
60k views

What type of Brake Lube to use

I am going to do a DIY brake job on my car and am trying to sort out how to lube everything. I found this helpful list of places to lube: What brake components need to be lubricated? but it does not ...
Charles L.'s user avatar
3 votes
2 answers
813 views

Oil low - incorrect oil already in. Stick with the wrong type or add correct type? [duplicate]

Vehicle: 2004 Mini Cooper (1598cc Petrol, 3-door hatchback) (United Kingdom). My knowledge-level: Low. Background: My oil level is below 'minimum'. I suspect a leak and have booked it into the ...
andydavies's user avatar
8 votes
1 answer
4k views

Effects of sunlight on engine oil

I have a 5 litre bottle of oil out back that I was going to top my car up with when I realised it's been out on the sun for about a month, the bottle is opaque and does not let sunlight through (apart ...
ceefax12's user avatar
  • 1,242
3 votes
1 answer
705 views

Effects of loss of oil pressure after oil change [closed]

I'm curious some people say change oil every 3k miles, 6k, 10k and some even every 20k. What seams best for the engine and give the best protection would be the shortest interval 3k however I ...
ceefax12's user avatar
  • 1,242
10 votes
3 answers
118k views

Okay to add new oil to old?

Title pretty much explains, I change my oil every 4-6k miles depending on how generous I’m feeling, however will the oil dirty oil that’s already in the sump mix with the clean oil when topping up? ...
ceefax12's user avatar
  • 1,242
6 votes
1 answer
588 views

Heim joints with zerk fittings

On my truck I have heim joints setup in the steering to provide additional strength. Currently I have a 3/4 by 3/4 heim with teflon coatings, and with the mud and dirt where I live, they are getting ...
John's user avatar
  • 163
15 votes
5 answers
71k views

Does Vaseline dissolve rubber?

Recently, someone suggested that I apply some vaseline to an O-ring connection to see if I can find a leak. I've read that oil-based lubricants, especially vaseline, can desolve rubber. It seems like ...
Lynn Crumbling's user avatar
9 votes
3 answers
3k views

What prevents engine oil from mixing with petrol in motor bikes?

Engine oil is used in the lubrication process, at the same place petrol is also there. What prevents engine oil mixing with petrol in motor bikes?
Donnel Countess's user avatar