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+--- Thread: Buying a used Holset? (/showthread.php?tid=5883)
Buying a used Holset? - hooblah - 09-30-2014
There's a guy selling a used Holset, the advert claims its an hx40 but the guy then got back to me saying its actually an hx35. He sent me a couple of pics but the identification plate is missing. How can I tell which one it is? Also does this indicate that its a Chinese copy? It has holset cast into it so I'm not sure.
He said the model number is 35 30 521. Does that mean hx35? Google doesn't reveal anything.
Am I correct in assuming the size of the exhaust housing is on the inside of the turbine outlet?
And just to add, it appears to have an 8 blade compressor wheel.
Thanks!
RE: Buying a used Holset? - Hario' - 10-01-2014
It's not a copy if it has 'HOLSET' cast into the compressor housing front thats for sure
RE: Buying a used Holset? - hooblah - 10-01-2014
Thanks Harry but how can you be so sure? If they can copy the turbo then why not make a total replica and pass it off as the real thing?
The missing tag is also a bit suspicious, but I've come across quite a few holsets that are missing the tag. Any idea what that's about?
RE: Buying a used Holset? - Eric78 - 10-02-2014
(10-01-2014, 11:51 AM)hooblah The missing tag is also a bit suspicious, but I've come across quite a few holsets that are missing the tag. Any idea what that's about?
It's only rivetted on, perhaps it just gets knocked off easy. Most of these Holsets come off trucks, if a truck comes in for service maybe it's just a common practice at service centres to replace turbos altogether instead of rebuilding it, although the turbo is very likely still rebuildable there is probably a requirement for the service centres to remove the tags to write the part off(Especially somewhere where the vagueries of legislation might classify it as part of the emissions system).
RE: Buying a used Holset? - Simpler=Better - 10-02-2014
(10-02-2014, 06:25 AM)Eric78(10-01-2014, 11:51 AM)hooblah The missing tag is also a bit suspicious, but I've come across quite a few holsets that are missing the tag. Any idea what that's about?
It's only rivetted on, perhaps it just gets knocked off easy. Most of these Holsets come off trucks, if a truck comes in for service maybe it's just a common practice at service centres to replace turbos altogether instead of rebuilding it, although the turbo is very likely still rebuildable there is probably a requirement for the service centres to remove the tags to write the part off(Especially somewhere where the vagueries of legislation might classify it as part of the emissions system).
If it's warranty work they go by the hour job estimates-so a turbo swap is way cheaper than a rebuild when you're paying a tech to do it. No uncommon to just throw another on there (this is why there are "plenty" of small VNTs)
RE: Buying a used Holset? - hooblah - 10-03-2014
Sounds plausible.
I've read the holset guide to spotting the differences between the real and fake ones. Two obvious signs would be the webbing in the mwe groove is radiused and the compressor inlet has a machined finish on a real one. They also use a multi point nut on the shaft.
By that reasoning I believe the turbo I'm looking at is a real one. Thanks guys.
RE: Buying a used Holset? - CRD4x4 - 10-04-2014
The first turbo I ever bought was a freshly rebuilt Garrett T4 twinscroll that was missing its data plate. I still don't know exactly what its off of but its definitely real.
I heard somewhere that some shops remove the data plate when rebuilding turbos.
I'd bet yours is legit too.
RE: Buying a used Holset? - Eric78 - 10-04-2014
The two Holsets I have still have takes but they aren't rebuilt, they were sold as requiring rebuild, it's only simple bearings that need doing.