AHW Replacement Engine

Chat about your MKV (6N2) Polo
Post Reply
Stue
New
Posts: 4
Joined: Wed Oct 24, 2007 10:05 pm
Location: Midlands

AHW Replacement Engine

Post by Stue » Thu Nov 01, 2018 10:29 pm

Hi Folks
I am looking for a replacement AHW engine.
I know that this unit was used in Golfs and others, but have seen suggestions that the golf unit is not suitable for a Polo because the starter is at the front.
I would have thought that this related to the gearbox not the block. Anyone know for sure?
Anybody got one to sell?
Stue

User avatar
alexperkins
Site Admin
Posts: 14357
Joined: Sat Nov 11, 2006 5:29 pm
Drives: 91 Golf GTI, 01 TT 225, 67 Q7
Location: Poole, Dorset, UK.
Contact:

Re: AHW Replacement Engine

Post by alexperkins » Tue Nov 06, 2018 6:21 pm

Yes it is related to the gearbox housing. AHW is an AHW. Blocks are identical. Its the ancillary parts that differ

Stue
New
Posts: 4
Joined: Wed Oct 24, 2007 10:05 pm
Location: Midlands

Re: AHW Replacement Engine

Post by Stue » Tue Nov 06, 2018 9:08 pm

Thanks for that.
AHW units seem quite rare now, BBY are alledged to be new alternative, has anyone done this? is it a straight swap if you use the original fuel & exhaust systems?

User avatar
alexperkins
Site Admin
Posts: 14357
Joined: Sat Nov 11, 2006 5:29 pm
Drives: 91 Golf GTI, 01 TT 225, 67 Q7
Location: Poole, Dorset, UK.
Contact:

Re: AHW Replacement Engine

Post by alexperkins » Tue Nov 06, 2018 11:42 pm

BBY in a 6N2 might be troublesome. Different engine management for a start. In a 9N it’s easy

littlepolo
Silver Member
Posts: 289
Joined: Thu Jul 21, 2011 9:47 pm

Re: AHW Replacement Engine

Post by littlepolo » Sun Nov 11, 2018 8:59 am

What is the reason for the replacement?

I replaced a BBY (auto) with another BBY (auto) - I'm guessing your's is manual. Just that the flywheel, etc. will differ if swapping auto to man or vice versa. I was going to replace the whole unit but found the bottom end at 90K+ miles was sound and I know it had regular oil changes in my ownership since 27K mls.

Incidentally, there's an AHW on the 'bay with 46K mls.

Post Reply