Is BEB an issue for 1HD-FT

Joined
Aug 5, 2016
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Vancouver, Canada
I am getting conflicting information as to whether BEBs are an issue on 1HD-FT, and thus whether I should be considering replacing them on my 97 1HD-FT with 300,000 km on the clock. I just got the vehicle and do not know the history of the engine. However, it doesn't seem to make any unusual noises, and I pulled the valve cover off to replace the seal and the cam seems to be in great shape.
 
Joined
Mar 21, 2010
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SK, Canada
The BEB's are on the crank, not the cam. Certainly less of an issue with the FT, but I'll defer to others with more experience.

You will get a better response in the diesel section.
 

mudgudgeon

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Dec 17, 2007
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Across the pond, and upside down
1HD-F big end bearings are the equivalent of the 1fz-fe headgasket paranoia.

Yes, they are a known weakness, particularly in early production years.
Toyota supposedly resolved it in the 1hd-t series engines with different shaped piston combustion bowls.

Having said that, there countless 1hd-t engines still running original 30 year old BEBs with 1/2 a million kilometres plus on them.

If you're worried, get an oil sample analysis done, ideally take a sample of the oil from the previous owner, so your first oil change, and follow up with the next oil change.
 

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