Anchorman's Dmf Post

[shcm]

Anchorman, I see you've now pinned the DMF info and I have to say it is a very interesting and informative read. Well done Mate (Mind you, we expect nothing less :P ). Have you ever thought about tech authoring?

I have to say, before I joined this forum, I knew nothing about DMFs (some would say I'm lucky), not even their existence, that is certainly not the case now.

My biggest worry was always the "nasty rubber" cam belts, so I was pleased when they went back to a chain (why did VMs go to rubber in the first place? noise? weight?). Now I have something else to worry about :D.

Seriously, it's a good piece of work and lets hope Toyota have learned from it. I know from experience how much care and testing goes into these things (and the Japanese are exceptional at this IMHO), but with all the care and accelerated life testing, it's still not quite the same as "out in the field" and sometimes things just slip through. We're all human!

Maybe this is still not quite right (and it seems to apply to all diesels), but I'm sure eventually a robust solution will be found, if indeed it hasn't been found already with the improved procedures and designs. Time will tell.

In the meantime enjoy you vehicles and don't get hung up on it (easy for me to say). I'm not going to.

Well done again :)

[dave.m]

Yep would agree with you, as a reward I was going to give him a couple of these-

But thought he would rather have a couple of these-

Well done mate. ;)

[Red Yaris 54]

Yep would agree with you, as a reward I was going to give him a couple of these-

But thought he would rather have a couple of these-

Well done mate. ;)

Phew....................I have sat here for several minutes waiting for that top to ride up ;)

[dave.m]

Yep would agree with you, as a reward I was going to give him a couple of these-

But thought he would rather have a couple of these-

Well done mate. ;)

Phew....................I have sat here for several minutes waiting for that top to ride up ;)

Some on here have been waiting several months

[bothwell_buyer]

Anchorman, I see you've now pinned the DMF info and I have to say it is a very interesting and informative read. Well done Mate (Mind you, we expect nothing less :P ). Have you ever thought about tech authoring?

I have to say, before I joined this forum, I knew nothing about DMFs (some would say I'm lucky), not even their existence, that is certainly not the case now.

My biggest worry was always the "nasty rubber" cam belts, so I was pleased when they went back to a chain (why did VMs go to rubber in the first place? noise? weight?). Now I have something else to worry about :D.

Seriously, it's a good piece of work and lets hope Toyota have learned from it. I know from experience how much care and testing goes into these things (and the Japanese are exceptional at this IMHO), but with all the care and accelerated life testing, it's still not quite the same as "out in the field" and sometimes things just slip through. We're all human!

Maybe this is still not quite right (and it seems to apply to all diesels), but I'm sure eventually a robust solution will be found, if indeed it hasn't been found already with the improved procedures and designs. Time will tell.

In the meantime enjoy you vehicles and don't get hung up on it (easy for me to say). I'm not going to.

Well done again :)

Robust solution? I think ye caw it petrol?

[anchorman]

Thanks chaps.

I have to say that TGB were very helpful in providing information and comment but the important thing was to try and cover all possibilities. As shcm says a lot of people don't even know they have one let alone why they are forking out a small fortune to replace one. In some ways it makes our life easier (and maybe some Toyota service staff) because we can just refer them to the post when it pops up although it is quite natural for anybody to get emotive about so much expense.

To try and answer the question about timing belts - chains were originally unreliable partly due to the technology and partly due to inadequate oils. Moving to a rubber belt resolved that to some extent and brought the benefit of geting the drive mechanisim "outside" of the engine. It also meant the could be used to drive many other components and allow some fairly complex routing on multi cam engines. If you have ever turned a cam shaft you will know that it is a "pig" as they pop over the cams to the next lobe and you can imagine that on high lift cams that causes very uneven turning which to some extent is damped out with a rubber belt. However it is widely acknowledged that the service life of a belt is limited (usually 60k to 75k) and those that have had it done usually get presented with a bill for about £600 with the appropriate service. Modern engines have gone back to chains because a modern multi link width chain is very reliable especially when used with modern synthetic oils. All the other components are now driven on the outside by a serpentine belt which functions by having a flat section multi vee profile and is wrapped around approx 270 degrees of each pulley but is only tensioned by a spring loaded pulley. The result is astonishingly long life - maybe 100k or more.

You ask bothy how many times he had to raid some poor maidens tights to lash around the pulley's of that Humber Hawk.

Now Dave.

I find your accolade very flattering but it's not good for somebody who remembers Humber Hawks being new. However, there is life in the old dog yet and I could show her a thing or two about engines in all of about seven seconds

Don't think anchorwoman would approve much of my new apprentice.

[Parts-King]

Yes well done Anchorman........a good read indeed

For anybody who finds themselves in need of a DMF, please contact me and I will find you the best deal

Kingo

[shcm]

Some on here have been waiting several months

I wonder if Kingo can get her catalogue number? She probably only fits to a Lexus :(

Thanks for the cam belt explanation Anchorman. Often wondered why, but never got a good answer before

[chatman]

To put them all into one place with my Toyota Girl, and dance to whatever tune is in your head here you go.................

[bothwell_buyer]

To put them all into one place with my Toyota Girl, and dance to whatever tune is in your head here you go.................

Ahm no so sure ahm weel pleased wi images o ma great great grand niece frae Kazakhstan...... Init that yer aw tae auld tae be watching such stuff case ye go blind?? Ohh - richt enuf - if ye've boucht a 5 door RAV diesel ye must be blind. So sorry fur the unintended slur oan the conflicted - ah work hard tae help folk whits goat problems and aflictions wi themsels.

[Fujisan]

Great work Anchorman

Thank you very much

I've only just had a quick read of it, will have a better longer read later when I have more time but it is a truely excellent piece of work from what I've seen so far.

Again thank you very much

[anchorman]

To put them all into one place with my Toyota Girl, and dance to whatever tune is in your head here you go.................

Ahm no so sure ahm weel pleased wi images o ma great great grand niece frae Kazakhstan...... Init that yer aw tae auld tae be watching such stuff case ye go blind?? Ohh - richt enuf - if ye've boucht a 5 door RAV diesel ye must be blind. So sorry fur the unintended slur oan the conflicted - ah work hard tae help folk whits goat problems and aflictions wi themsels.

That explains a lot. The bothmeister is related to Borat!

[sywy]

Top stuff anchorman

Not read it yet, but I'm sure it's up to your usual high standards.

[NMaria]

A lucid and interesting piece of writing, anchorman. We have a post-2002 model so hope and trust that we won't have any dmf problems of the pre-2002 sort, but as you say, other kinds of problems are not inconceivable with such a complex piece of kit. Either way, my husband (a mechanical engineer) and I both enjoyed reading your article.

How you find the time to keep making such excellent contributions to the forum I do not know, but it is much appreciated.

[bothwell_buyer]

A lucid and interesting piece of writing, anchorman. We have a post-2002 model so hope and trust that we won't have any dmf problems of the pre-2002 sort, but as you say, other kinds of problems are not inconceivable with such a complex piece of kit. Either way, my husband (a mechanical engineer) and I both enjoyed reading your article.

How you find the time to keep making such excellent contributions to the forum I do not know, but it is much appreciated.

Aw naw...dinna tell me! A RAV 5 door diesel owner in sunny Scotland! Whit next??

N by the way, I also read the article fully - an accurat bit o writingtwas tae. Pit ony sensible fowk aff buying a diesel ye'd think eh?? Dinna be buying ony diesel transits cos they're the same ye ken!

Diesels are fur auld trains n cooking oil.....sewage pumps and Gennys!

[shcm]

N by the way, I also read the article fully - an accurat bit o writingtwas tae. Pit ony sensible fowk aff buying a diesel ye'd think eh?? Dinna be buying ony diesel transits cos they're the same ye ken!

Diesels are fur auld trains n cooking oil.....sewage pumps and Gennys!

Never mind Bothy one day we might all be running around with hydrogen fuel cells powering nice torquey (isn't that a place in Devon?) electric motors.

Until then I can do without spark plugs, limp strings of carbon (HT leads) and large inductance coils. :D

Cheers

(Lang mey yer lum reek - much like my diesel I suppose :P ).

[bothwell_buyer]

N by the way, I also read the article fully - an accurat bit o writingtwas tae. Pit ony sensible fowk aff buying a diesel ye'd think eh?? Dinna be buying ony diesel transits cos they're the same ye ken!

Diesels are fur auld trains n cooking oil.....sewage pumps and Gennys!

Never mind Bothy one day we might all be running around with hydrogen fuel cells powering nice torquey (isn't that a place in Devon?) electric motors.

Until then I can do without spark plugs, limp strings of carbon (HT leads) and large inductance coils. :D

Cheers

(Lang mey yer lum reek - much like my diesel I suppose :P ).

No so sure whit ye mean - is the English government imposing compulsory transplants o cells fur stomachs?? Whitever next!

Fortunately up here oor mob are intent oan wielding shafts o steel n chasing a wee ball roon the hills! The latest is up oan sand-dunes run by some American tramp. Ah cannae dae that cos ma zimmer gets stuck in the grun!

Agree wi ye oan the HT leads - pain in the butt - aifter 13 years ahm haein tae replace mine!

[Fujisan]

Had a good read of your work now Anchorman!

And all I can say is,

10 out of 10

[dave.m]

Cheers

(Lang mey yer lum reek - much like my diesel I suppose :P ).

W T F, a closet Scotsman ???????

[bothwell_buyer]

Cheers

(Lang mey yer lum reek - much like my diesel I suppose :P ).

W T F, a closet Scotsman ???????

Scary - eh?

[chatman]

Cheers

(Lang mey yer lum reek - much like my diesel I suppose :P ).

W T F, a closet Scotsman ???????

Scary - eh?

Even scarier my company has just opened two offices in Glasgow and Edinburgh. :wacko: ..Now have offices in Bristol, Enfield, Leatherhead, London, Manchester, Newcastle. And looking to move into new Head Office in new year and guess who gets to space plan and project manage it all...........ME :yahoo:

[anchorman]

Cheers

(Lang mey yer lum reek - much like my diesel I suppose :P ).

W T F, a closet Scotsman ???????

Scary - eh?

Even scarier my company has just opened two offices in Glasgow and Edinburgh. :wacko: ..Now have offices in Bristol, Enfield, Leatherhead, London, Manchester, Newcastle. And looking to move into new Head Office in new year and guess who gets to space plan and project manage it all...........ME :yahoo:

Congratulations.

I hope you're not thinking of passing my neck of the woods without calling in for a brew and a biscuit ;)

[chatman]

Congratulations.

I hope you're not thinking of passing my neck of the woods without calling in for a brew and a biscuit ;)

May even be a passenger on one of your trains Anchorman.................................Hope your be wearing your cloths... :blink: :lol: :lol:

O bugger did I mention trains :bag: :bag:

[Uncle Bob]

Just had a read of the DMF sticky...well done Anchorman

[anchorman]

Congratulations.

I hope you're not thinking of passing my neck of the woods without calling in for a brew and a biscuit ;)

May even be a passenger on one of your trains Anchorman.................................Hope your be wearing your cloths... :blink: :lol: :lol:

O bugger did I mention trains :bag: :bag:

This is Buxton. Clothes are necessary in summer never mind winter (even flossie gets wrapped up). -2 at the moment.

Bob

Thanks