Throttle body change to 52mm

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defenderman
Club Member
Posts: 21
Joined: Mon Nov 20, 2017 11:12 pm
Location: Birmingham

Throttle body change to 52mm

Post by defenderman »

Hi there anybody know if when the TB is changed if the accelerator cable has to be changed at the same time, the vehicle is 1.4 16 valve Rover 25 facelift 54 plate.
Any assistance would be welcomed.
Cromp85
Club Member
Posts: 419
Joined: Fri Oct 02, 2015 10:24 am
Location: Dudley, West Midlands

Re: Throttle body change to 52mm

Post by Cromp85 »

If your car is the restricted 84ps spec then yes, if you have the normal 103ps 48mm throttle (ZR 45 etc) the cable should be the same as the 52mm. The best way to tell is by comparing the cam on the side of the TB
My Rovers to date:
1995 Rover 216 Coupe in Nightfire red
1994 Rover 220GSI in Tahiti blue
2002 MG ZR 105 in Solar red
1995 214i in Nightfire red
defenderman
Club Member
Posts: 21
Joined: Mon Nov 20, 2017 11:12 pm
Location: Birmingham

Re: Throttle body change to 52mm

Post by defenderman »

Hi Cromp85, Thanks for the the reply & info I'll check it out, the car is a late facelift 25 so uncertain what size the current TB is.
Regards.
ROVER Cabby
Forum User
Posts: 1765
Joined: Wed Feb 17, 2016 1:17 pm
Location: UK

Re: Throttle body change to 52mm

Post by ROVER Cabby »

They are all 48mm and the only difference is how far the butterfly opens, if it opens all the way then you have a 103/5 BHP
model and you can swap over to the 52mm with ease and you only need to reset the stepper motor, easy process.

If the butterfly only partially opens then it is the 'restricted' 83/5 BHP model and you will need the other cable, a lot of people
have them lying around and on ebay, they were used on lots of models.
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