Hi, I am stationed in japan and just bought a 1990 HDJ81V. This thing is bad arse! I have been cruising this forum for a couple weeks now and "heard" about the BEB big end bearing issue. My question is what website or company can i order a set from in the States?
1hd-t big end bearings, where to buy
- Thread starter girraffe
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G&S cruiser parts.
- Thread starter
- #3
Japan 4x4 I believe I spoke to you before. I am in Misawa, Aomori. Could you find me some of these bearings?
The bearings you need are ACL Duraglide bearings Standard bearings are part number 6B8396-STD [CB707A]. They are made in Oz but are sold in the USA also. Usually pay from AU$ 55.00 to AU$75.00 for a set. cheers gazza
Hastings Manufacturing in Hastings, Michigan. $37 per set (price I paid for in early 2007). Very easy to deal with, fast delivery and of course, great prices.
Mr. girraffe, due to the relative low cost and high quality of OEM parts in Japan the aftermarket stuff is hard to find and costly. So either stick with Toyota or buy the bearings from overseas. I know G&S have them and I know they ship to Japan.
I concur with Japan4x4, you are in Japan after all, why not get the OEM parts?
Although the ACLs have a great reputation as being tougher than even the upgraded OEM replacement bearings possibly because of the different metal composition and probably because of the much harsher market they are designed to work in (Autralia with its dust and different oil quality), they are not available in the fractional sizes like the OEMs so presumably the oil clearance may not be as tight as on the OEMs.
OTOH in practice everyone who has installed these ACL bearings has not come back with ill effects (no measurable difference in oil pressure after most ACL installs) and better of all, no recurrence of the flaking problem that seems to be not fully resolved in the upgraded OEM bearings (there have been some reports of failures after 100,000km).
In my opinion the problem is most probably related to the way the injection and combustion works in the early series of this model. I was able to access a white paper by Toyota engineers describing a cavitation erosion problem on some main bearings that has a striking resemblence with the classic BEB failures affecting the early version of the 4.3 litre diesel engine at around 2000RPM due to ultrasonic combustion noise harmonics, which was apparently resolved by slightly modifying the original bearings.
This issue and the convenience of not having to wait for days with the crankshaft exposed for the Toyota fractional bearing sizes to come in is the main reason I have, like most people here, preferred to install ACL bearings.
I presume in Japan this is a non issue (they are probably in stock everywhere) and it is quite possible that the formulation/configuration of the bearings has improved again since, so for you it basically comes down to the choice of doing the job in Japan with OEM parts or doing it back in North America (if you bring the truck back in NA) with reliable but 'one size fits all' standard ACLs.
Although the ACLs have a great reputation as being tougher than even the upgraded OEM replacement bearings possibly because of the different metal composition and probably because of the much harsher market they are designed to work in (Autralia with its dust and different oil quality), they are not available in the fractional sizes like the OEMs so presumably the oil clearance may not be as tight as on the OEMs.
OTOH in practice everyone who has installed these ACL bearings has not come back with ill effects (no measurable difference in oil pressure after most ACL installs) and better of all, no recurrence of the flaking problem that seems to be not fully resolved in the upgraded OEM bearings (there have been some reports of failures after 100,000km).
In my opinion the problem is most probably related to the way the injection and combustion works in the early series of this model. I was able to access a white paper by Toyota engineers describing a cavitation erosion problem on some main bearings that has a striking resemblence with the classic BEB failures affecting the early version of the 4.3 litre diesel engine at around 2000RPM due to ultrasonic combustion noise harmonics, which was apparently resolved by slightly modifying the original bearings.
This issue and the convenience of not having to wait for days with the crankshaft exposed for the Toyota fractional bearing sizes to come in is the main reason I have, like most people here, preferred to install ACL bearings.
I presume in Japan this is a non issue (they are probably in stock everywhere) and it is quite possible that the formulation/configuration of the bearings has improved again since, so for you it basically comes down to the choice of doing the job in Japan with OEM parts or doing it back in North America (if you bring the truck back in NA) with reliable but 'one size fits all' standard ACLs.
- Thread starter
- #8
Sooo... what you're saying is that the OEM bearings could be better than the ACL's? Are they or aren't they? I am on a base over here so we have a "hobby shop" with the whole nine yards. I plan on doing the procedure here regardless.
Bottom line: OEM BEBs are finer tuned than ACLs for oil clearance but the material they are made of is not as durable/reliable as the one in the ACL bearings and you need to remove the pan first then figure out what you need and order the proper bearing for the proper connecting rod.
Kapish?
Kapish?
- Thread starter
- #10
Wakarimasu-Japanese for "I understand"
By the way... I called Hastings Mfg. and they told me they do not carry the engine bearings anymore. They directed me to ACL Distribution Welcome to ACL Distribution, Inc. :: Your source for the highest quality Engine Bearings & Gaskets. Once i get the time zone difference correct I'll order and let Y'all know how it went.
By the way... I called Hastings Mfg. and they told me they do not carry the engine bearings anymore. They directed me to ACL Distribution Welcome to ACL Distribution, Inc. :: Your source for the highest quality Engine Bearings & Gaskets. Once i get the time zone difference correct I'll order and let Y'all know how it went.
Intersting. An old mechanic who worked on my injection pumps believes there is some inherant vibration
that travels through the timing gear and wears the fuel pump's main shaft prematurely.
He didnt have any sophisticated explanations ,he just said it was a hunch.
But he did say the Nissan Patrol Bosch/Zexel pumps with a smaller 19mm shaft(denso shaft is 24mm I think) and smaller bearings lasted much longer than the similar type landcruiser pump.
Some 1HD T owners say they were told the beb failure was due to crank flex according to the Markerinc site
Here you go, found the link to the article for you
Although the 4.2l engine is not mentioned by name, there aren't many 6 cylinder engine versions with noise occuring at around 2,200 RPM (sorry about the previous mistakes on my part, last time I read that article was last July)
Sooo.. I know it's a bit dry reading but it is easy to understand the principle behind ultrasonic cavitation wear and it would seem reasonable to extrapolate from that study that it could well be a similar phenomeneon acting on the BEBs, which could explain why Toyota has changed the injection process in the latter models of the series, possibly to reduce that effect.
Linky no work: (
You would be very hard pressed to find an engine rebuilder around these parts that would tell you to use factory bearings. These blokes specialize in rebuilding diesel engines , not just a diesel now and then like in some countries.
Even using the different sized bearings on the crank some of these engines still have low oil pressure at idle. Some of Toyota's newer model pistons are not too flash also. cheers.
LOL me too also.
Dumdunce
has been talking about this direct injection vibration problem for years now. Toyota replaced a few cranks because of defects
like you mentioned and a few broke clean on the No1 journal.
OK, this one should work, just tested it
The previous link I gave you had one of those pesky erroneous "%20" in it... What is that "%20" in a link supposed to mean anyway?
Well usprisingly, ACL is now saying that their new Aluglide bearings are even better and more durable than the old Duraglide bearings!
Hmmm! Same technology as Toyota's aluminum bearings, or different? I personnally would not trust those new bearings knowing how the Toyota 6 cylinder diesel is prone to ultrasonic bearing cavitation under certain conditions!
Dumdunce
Who is that Dumdunce guy? can't find a member called "Dumdunce"...
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OK, this one should work, just tested it
The previous link I gave you had one of those pesky erroneous "%20" in it... What is that "%20" in a link supposed to mean anyway?
Interesting read, thanks. Just looking at the set I have through a magnifying glass I can't seem to find any of the cavitation marks as shown in the picture on the file. But it seems obvious they have identified one problem at least. If you remember Toyota denied
there was a problem at all for a long while. 
