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Ford Crossflow/type 9 To St170/mt75 - Winter Project


MarkBzero

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It's been a long term plan, since IVA to upgrade my engine from 1.6 Ford crossflow to something bigger and better. However my gearbox failed last year so the car also needed a gearbox, after a lot research I finally decided on a MT75 (getting harder to find a decent type 9) and ST170 engine.
I already have a mega jolt unit so I decided on the VVTpro from trigger wheels. I am also going to keep the twin 40 dellorto's they are reliable and have been completely overhauled a year ago.
I don't expect this to be a quick build I rarely get any time due to work and family commitments. Thank you to the members who have already answered some of my questions, for starter, clutch and water rail.

Edited by MarkBzero
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I was trying to make it to Tatton park for a kit car meet but after a few vibrations and then grinding noises I thought I would call the AA, a good colour match, at least my son enjoyed a drive in a truck. Slightly worried, I think he preferred it to the kit car.

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I had to wait for a few months before finding a suitable engine and even longer for a gearbox. The engine came from a scrap yard in Birmingham, good chap let me visit to hear the car running and check engine numbers before stripping it and delivering on a pallet. £350 plus £35 for delivery, it was complete.

 

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Again it was a long wait to find a decent MT75, the first was written off after a strip and inspection it required too much work. The second gearbox came from a classic restorer in Liverpool (posh scrap yard), again from working car with relatively low mileage £100. this is going to be expensive!

 

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Finally after 4 months off the road, let the build begin.

Edited by MarkBzero
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I managed to get a few hours in the garage today, first hour was spent cleaning my work-space and building the engine stand. In the second hour I removed all the ancillaries that I did not need from the ST170 engine. Not throwing anything away yet, once on the engine stand I will start to inspect the engine.

 

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Looking a lot thinner.

 

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I wish I could lose this much weight after Christmas!

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Removed the really heavy dual mass flywheel and clutch, before mounting on engine stand which probably broke every health and safety rule on manual handling. Reminds me, I must build the engine crane at some point when I have some space.

 

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Going to fit a 1.8 Zetec flywheel, I will have to order some new flywheel bolts because the old bolts are too long for the thinner flywheel. Should I use ARP or will standard Ford do?

 

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The zetec clutch is marginal on a 2.0 blacktop. For an ST170 I would advise having the 1.8 flywheel drilled for an uprated 2.0L pinto pressure plate and organic driven plate.(Such as supplied by Retroford) Apart from having no clutch slip there is the bonus of using the original pinto release bearing.

 

Nigel

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I re used the zetec bolts

The original bolts are too long, I do not feel comfortable to cut them down with the torque settings and thread lock. Beyond my skill, but will it make a difference with weight, balance and centrifugal force?

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The zetec clutch is marginal on a 2.0 blacktop. For an ST170 I would advise having the 1.8 flywheel drilled for an uprated 2.0L pinto pressure plate and organic driven plate.(Such as supplied by Retroford) Apart from having no clutch slip there is the bonus of using the original pinto release bearing.

 

Nigel

Thanks Nigel,

I did think long and hard about the clutch and flywheel choice, but my budget will not stretch to some of the specialist retroford parts. I know I will probably update in the future but that's part of the fun.

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