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Go Back   Australian Ford Forums > Ford Australia Vehicles > Small and Mid Sized Cars > Escort, Cortina, Sierra and Capri

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Old 23-04-2019, 01:34 AM   #1
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Brick's Avatar
Join Date: Oct 2016
Location: Perth
Posts: 7
Default Cosworth YB install query

Have a mk 2 Escort and had a Cosworth YB built for it. Used the "How to Power Tune Ford SOHC" by Des Hammill for guidance on the various bits and pieces required (has a YB conversion chapter). Have just finished adding on the necessary accessories, eg sender units, dizzy, manifolds, flywheel, clutch, etc.

Went to bolt the Rocket gearbox on and noticed the ring gear runs extremely close to the bellhouse (within 1mm). Is this normal? Everything I have read indicates the flywheel and clutch are larger between the Pinto and the YB, but nothing suggested regarding changing the flywheel. Likewise, have not read anything anywhere that indicates the bellhouse should not fit. Am I missing something somewhere?

If in doubt, throttle out....

2020 Mustang R-spec (#013)
2016 Ranger PXII XLT
2008 Porsche 911 GT2
1976 Escort mk2 Cosworth race car
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