All about diesel power! - Page 3

deafsmogtech · 12-03-2011, 10:33 PM

Quote:

Originally Posted by mx757

Deafsmog. your correct that the BEW engines are having camshaft wear. not all of them do.. some do.. mine has 160,000 miles now on my 2005 VW jetta TDI and it has no cam wear.

timing belt is no big deal.. special tools are nothing more than lock up pin, 6 mm hex wrench you can buy tools and belt & water pump for $250.00
Vag com is used to check injector timing after done it should be 0.0 to 0.5 for Jetta while Passat seem to like 0,5 to 1.0 if the lock up pin slides out freely your about spot on..

the dealers and shops ask about $1200-$1600 to do it. it takes me about 4 hours to do. not really difficult to do. Virbration is more likely rubber on motor mounts getting old / aging. the clutches are good.

I think I read the forum about updated valve lifters fix the soft lifters on model year 2006, they says camshaft must replace when use updated valve lifters.

You did timing belt job on the BEW engine yourself? Curious.....

Even the dealer replaced new dog biscuit mounts to fix engine vibration problems because they doesn't want to replace defective Dual Mass Flywheel under warranty as they pray the warranty expired then they can do the DMF replacements. Same as other dealerships in anywhere.

mx757 · 12-03-2011, 10:33 PM

Quote:

Originally Posted by The Highlander

It's true about lubricants.

Diesel fuel is a lubricant. Gasoline is a solvent. What would you rather spray on your cylinder wall?

while there is some lubercation properties provided by diesel its oil that lubercates the cylinder walls... not the fuel..

mx757 · 12-03-2011, 10:34 PM

Quote:

Originally Posted by deafsmogtech

I think I read the forum about updated valve lifters fix the soft lifters on model year 2006, they says camshaft must replace when use updated valve lifters.

You did timing belt job on the BEW engine yourself? Curious.....

Even the dealer replaced new dog biscuit mounts to fix engine vibration problems because they doesn't want to replace defective Dual Mass Flywheel under warranty as they pray the warranty expired then they can do the DMF replacements. Same as other dealerships in anywhere.

yes, I did the timing belt myself... one handed I'm left arm amputee. not hard to do..

deafsmogtech · 12-03-2011, 10:46 PM

Quote:

Originally Posted by mx757

Deafsmog tech is correct. if you drove one you'd be surprised. while its horsepower is lower than the gasoline version of the same car, it's tourqe is much higher... torque is what gives the car its accelaration...or power..

I wish,..... I drove old diesel vehicles for road test, real POS. But I did smogged newer diesel vehicles but can't drive it for road test because the consumers waited for their cars. If a consumer drop a newer diesel vehicle for smog check and no hurry then I will drive it for road test to see what performance looks like.

deafsmogtech · 12-03-2011, 11:08 PM

Quote:

Originally Posted by mx757

while there is some lubercation properties provided by diesel its oil that lubercates the cylinder walls... not the fuel..

Right

The Highlander · 12-03-2011, 11:13 PM

Quote:

Originally Posted by mx757

while there is some lubercation properties provided by diesel its oil that lubercates the cylinder walls... not the fuel..

Dude, it is not just the oil. Diesel fuel AND oil do lubercation on the cylinder. But there is no way oil on the top of cylinder wall and piston head. Again, it was book said that.

Research again.

deafsmogtech · 12-03-2011, 11:14 PM

Quote:

Originally Posted by mx757

yes, I did the timing belt myself... one handed I'm left arm amputee. not hard to do..

What....

The Highlander · 12-03-2011, 11:26 PM

Quote:

Originally Posted by deafsmogtech

Right

PeachParts Mercedes ShopForum - View Single Post - Cylinder wall wetting by diesel fuel

Read it. I just googled it for double check.

deafsmogtech · 12-03-2011, 11:26 PM

Quote:

Originally Posted by The Highlander

Dude, it is not just the oil. Diesel fuel AND oil do lubercation on the cylinder. But there is no way oil on the top of cylinder wall and piston head.

Research again.

I think I feel some funny with diesel oil uses to lubricate the cylinder walls and piston rings.... Does the diesel spray (from injector) into the prechamber when the piston reach the TDC OR before TDC? I forget one. I think I go back to the diesel school..

deafsmogtech · 12-03-2011, 11:36 PM

Quote:

Originally Posted by The Highlander

PeachParts Mercedes ShopForum - View Single Post - Cylinder wall wetting by diesel fuel

Read it. I just googled it for double check.

They talked about the biodiesel that's what the engine manufacturers concerns over poor vaporized combust chambers

**Jiro** · 12-03-2011, 11:41 PM

Quote:

Originally Posted by diehardbiker

Logically this does not make sense, higher compression equals higher stress on engine and with more stress, it should have shorten life but nope. It is still because the Diesel itself does not vaporize like gasoline counterparts does. That is big difference.

since it's higher compression, it's better built as he said... which means engine's tougher and more durable than gas engine.

**Jiro** · 12-03-2011, 11:42 PM

Quote:

Originally Posted by diehardbiker

I just learn that the orignally name of these kind of engine was "Atmospheric Gas Engine". Later changed to Diesel. The reason for this original title is that it does not require spark plugs but requires atmospheric elements which is heat up then compress the hot air, Diesel fuel react to that elements causing combustion process.
Other interesting that it was intended for manufacturers that depends on steam engines. Diesel too over because of its efficient, steam engine has efficient of 10%, meaning 90% goes into thin air as waste. Diesel increase that efficient and it was huge single cylinder engine with flywheel, Diesel cars were introduced long after the inventor passed away.

correct - diesel engine relies on heat for optimal performance.

deafsmogtech · 12-04-2011, 10:16 PM

Quote:

Originally Posted by deafsmogtech

I think I feel some funny with diesel oil uses to lubricate the cylinder walls and piston rings.... Does the diesel spray (from injector) into the prechamber when the piston reach the TDC OR before TDC? I forget one. I think I go back to the diesel school..

I googled the diesel engines, the injector(s) fires fuel into the compression stroke at TDC, seem not do anything with cylinder walls and rings. Only motor oil will lubricate the moving pistons and rings.

diehardbiker · 12-04-2011, 11:57 PM

Other reason why Diesel engine last longer is that it does not run as fast as Gasoline engines does. I usually cruising at 1500 RPM on highways, Gasoline would go faster than that.

mx757 · 12-05-2011, 08:39 AM

Quote:

Originally Posted by diehardbiker

Other reason why Diesel engine last longer is that it does not run as fast as Gasoline engines does. I usually cruising at 1500 RPM on highways, Gasoline would go faster than that.

depends on gearing... my TDI I run any where from 2000 to 3500 rpms on highway redline is 5000 RPMs

go to VW dealer.. test drive the new TDI Diesel... you'd think it was a gasline engine...

diehardbiker · 12-05-2011, 10:08 AM

Its not depending, Diesel has lower redline than gasoline, and it is harder to reach higher RPM on Diesel than Gasoline.

BTW. I own Diesel truck, and former owner VW diesel Jetta too.

Quote:

Originally Posted by mx757

depends on gearing... my TDI I run any where from 2000 to 3500 rpms on highway redline is 5000 RPMs

go to VW dealer.. test drive the new TDI Diesel... you'd think it was a gasline engine...

**sequoias** · 12-05-2011, 12:01 PM

Well, since I work for Enterprise. I've some seen gas cars run at 1500-1800 rpm at 5th gear on highways. Some even have 6th gear. It depends on gearing. A Chevy HHR shows 3500 rpm at 70 mph. My car is a bit less than the HHR at 70 mph.

diehardbiker · 12-05-2011, 12:09 PM

I'm speaking comparison in general. Diesel does have lower RPM requirement to provide energy needed. Remember Diesel has more energy content than Gas, thus has enough power in lower RPM than Gas does.

Diesel tend to provide twice of torque than Gas.

Quote:

Originally Posted by sequoias

Well, since I work for Enterprise. I've some seen gas cars run at 1500-1800 rpm at 5th gear on highways. Some even have 6th gear. It depends on gearing. A Chevy HHR shows 3500 rpm at 70 mph. My car is a bit less than the HHR at 70 mph.

**sequoias** · 12-05-2011, 12:14 PM

Quote:

Originally Posted by diehardbiker

I'm speaking comparison in general. Diesel does have lower RPM requirement to provide energy needed. Remember Diesel has more energy content than Gas, thus has enough power in lower RPM than Gas does.

Diesel tend to provide twice of torque than Gas.

I already know that.

Semi trucks with a 11-12 liter 6 inline turbo diesels can reach 1,500 torque at 1,300 rpm or so. The redline is only 2,200 rpm.

diehardbiker · 12-05-2011, 12:23 PM

Yep, that is why they got more gears.

Quote:

Originally Posted by sequoias

I already know that.

Semi trucks with a 11-12 liter 6 inline turbo diesels can reach 1,500 torque at 1,300 rpm or so. The redline is only 2,200 rpm.

The Highlander · 12-05-2011, 01:53 PM

Quote:

Originally Posted by deafsmogtech

I googled the diesel engines, the injector(s) fires fuel into the compression stroke at TDC, seem not do anything with cylinder walls and rings. Only motor oil will lubricate the moving pistons and rings.

Tell that to Jason Thompson | LinkedIn

Diesel Heroes Tsuyoshi Goto And Jason Thompson Photo 1

He is the one who wrote on the DieselPower about "Diesel fuel is a lubricant. Gasoline is a solvent. What would you rather spray on your cylinder?" Yep, I copied his words from his written.

**sequoias** · 12-05-2011, 03:23 PM

Wirelessly posted (sent from a smartphone. )

Quote:

Originally Posted by diehardbiker

Yep, that is why they got more gears.

Quote:

Originally Posted by sequoias

I already know that.

Semi trucks with a 11-12 liter 6 inline turbo diesels can reach 1,500 torque at 1,300 rpm or so. The redline is only 2,200 rpm.

Of course. Have you ridden in a semi truck? I have once. It was a cab over international with 9 spd. It had only 330 hp and about 1250 torque. Its pretty slow lol.

deafsmogtech · 12-07-2011, 10:15 PM

Quote:

Originally Posted by The Highlander

Tell that to Jason Thompson | LinkedIn

Diesel Heroes Tsuyoshi Goto And Jason Thompson Photo 1

He is the one who wrote on the DieselPower about "Diesel fuel is a lubricant. Gasoline is a solvent. What would you rather spray on your cylinder?" Yep, I copied his words from his written.

I don't know anything about Goto/Thompson.

The Highlander · 12-07-2011, 11:14 PM

Quote:

Originally Posted by deafsmogtech

I don't know anything about Goto/Thompson.

Not my problem since you dont believe about fuel as lubricant on the cylinder.

deafsmogtech · 12-07-2011, 11:59 PM

Quote:

Originally Posted by The Highlander

Not my problem since you dont believe about fuel as lubricant on the cylinder.

Wait a minute. What is this question that you answer is diesel oil? or what?

The Highlander · 12-08-2011, 02:06 PM

Quote:

Originally Posted by deafsmogtech

Wait a minute. What is this question that you answer is diesel oil? or what?

Nevermind.

radioman · 12-08-2011, 02:52 PM

look.... sulfur is the lube in diesels. Same with leaded gas we had at one time. Now we have ultra low sulfur diesel due to epa standards and it has less lubricity. Using howse or power service will help with the lost lubricity. If you are using bio-diesel blend, you best better be using power service which disperses water or similar since bio diesel attracts water and it will cause premature pump failures from corrosion.

Diesels engines manufacturers will adapt to these issues, but not anytime soon.

deafsmogtech · 12-09-2011, 09:00 PM

Quote:

Originally Posted by radioman

look.... sulfur is the lube in diesels. Same with leaded gas we had at one time. Now we have ultra low sulfur diesel due to epa standards and it has less lubricity. Using howse or power service will help with the lost lubricity. If you are using bio-diesel blend, you best better be using power service which disperses water or similar since bio diesel attracts water and it will cause premature pump failures from corrosion.

Diesels engines manufacturers will adapt to these issues, but not anytime soon.

I've reading the HD/Fleet forum, some posters (mechanics) who complaint the noisy fuel injection systems on the older trucks with no driveability problems, they were told that the ultra low sulfur diesel causes the fuel injection pumps and injectors noises. Diesel mechanics are not happy with that but to EPA....

marcusfond171 · 05-04-2012, 03:07 AM

Thanks for the information. I am looking for a diesel mechanic and auto repair person for my tow truck and one Volvo bus vagon. I have contacted some local mechanic for the job but they are asking about whole month which I can’t afford, I need someone who can make these 4 wheels run on the road within a week. I am living in Perth area.

soutthpaw · 05-07-2012, 08:27 AM

Quote:

Originally Posted by radioman

look.... sulfur is the lube in diesels. Same with leaded gas we had at one time. Now we have ultra low sulfur diesel due to epa standards and it has less lubricity. Using howse or power service will help with the lost lubricity. If you are using bio-diesel blend, you best better be using power service which disperses water or similar since bio diesel attracts water and it will cause premature pump failures from corrosion.

Diesels engines manufacturers will adapt to these issues, but not anytime soon.

This is correct sulfur is the lubricant for diesels. this is also why may use an additive like Diesel Kleen or Howes etc...
The reason diesels last longer than gas engines is they are built with a lot more metal. they weigh about 3x the amount of the same size gasoline engine. Gas engines have about 15% headroom, diesels have about 100% headroom. Another reason you can get a lot more power using aftermarket mods on a diesel than a gasoline engine.

I have a 2001 Ford Excursion Diesel. I use a PHP 6 position chip and I do my own custom tuning. I run between 60 -140 additional HP with tuning and larger exhaust and larger air filter. the 7.3 powerstroke engine was the best diesel Ford ever put in their trucks and the only reason they stopped using it was the EPA and their stupid regulations...

Also on value, my Excursion will sell for about $3000 more than an identical gasoline version so they do have much better resale value..

12-04-2011, 11:57 PM	#74 (permalink)
diehardbiker Registered User Join Date: Mar 2004 Location: In back of Superduty Posts: 11,634	Other reason why Diesel engine last longer is that it does not run as fast as Gasoline engines does. I usually cruising at 1500 RPM on highways, Gasoline would go faster than that. __________________ J-MAC's quote: "People who try and fail are more superior than people who don't try at all" "If people let the government decide what foods they eat and what medicines they take, their bodies will soon be in as sorry a state as the souls who live under tyranny." Thomas Jefferson (1778) Avatar picture is Cape Hatteras light house in OBX.

12-08-2011, 02:52 PM	#87 (permalink)
radioman Registered User Join Date: Jun 2008 Location: In the good ole USA ! Posts: 2,572	look.... sulfur is the lube in diesels. Same with leaded gas we had at one time. Now we have ultra low sulfur diesel due to epa standards and it has less lubricity. Using howse or power service will help with the lost lubricity. If you are using bio-diesel blend, you best better be using power service which disperses water or similar since bio diesel attracts water and it will cause premature pump failures from corrosion. Diesels engines manufacturers will adapt to these issues, but not anytime soon. The Highlander likes this.

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12-05-2011, 12:01 PM	#77 (permalink)
sequoias Premium Member Join Date: Jun 2004 Location: Iowa, wind generation capital Posts: 21,947	Well, since I work for Enterprise. I've some seen gas cars run at 1500-1800 rpm at 5th gear on highways. Some even have 6th gear. It depends on gearing. A Chevy HHR shows 3500 rpm at 70 mph. My car is a bit less than the HHR at 70 mph.

05-04-2012, 03:07 AM	#89 (permalink)
marcusfond171 Registered User Join Date: May 2012 Posts: 1	Thanks for the information. I am looking for a diesel mechanic and auto repair person for my tow truck and one Volvo bus vagon. I have contacted some local mechanic for the job but they are asking about whole month which I can’t afford, I need someone who can make these 4 wheels run on the road within a week. I am living in Perth area.