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v8 dizzy gear. 

 

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 Post subject: v8 dizzy gear.
Posted: Tue May 26, 2009 1:11 am 
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g'day, i'm after info in relation to replacing the dizzy gear out of an '97 5-litre, i'm doing a top end overhaul & was wanting to change the gear to co inside with the new cam .
"fraud" told me it was a "non serviceable item" :shock: and to top it off told me a new dizzy was ......wait for it......over $2000 :?
so can the gear be changed ? if not, what is a good after market dizzy to go for??

thanks steve.k.
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 Post subject: Re: v8 dizzy gear.
Posted: Tue May 26, 2009 1:17 am 
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have u tried your local speed shop, u can get a few different aftermarket ones for the earlier model windsors/clevelands. measure up the shaft size and make a few calls
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 Post subject: Re: v8 dizzy gear.
Posted: Tue May 26, 2009 3:26 pm 
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elf100capri wrote:
have u tried your local speed shop, u can get a few different aftermarket ones for the earlier model windsors/clevelands. measure up the shaft size and make a few calls

take the gear with you as the diameter,number of teeth,gear width and gear angle\pitch and shaft bore size has to be the same.what materials are used to make the gears,cast iron,steel,bronze?

 

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 Post subject: Re: v8 dizzy gear.
Posted: Tue May 26, 2009 4:09 pm 
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I'd leave it there if it's ok. What cam are you using?
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 Post subject: Re: v8 dizzy gear.
Posted: Wed May 27, 2009 1:35 am 
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XR9UTE wrote:
I'd leave it there if it's ok. What cam are you using?

i've got a comp cams "xe270hr" to go in with matching spring's etc,
just waiting on the 1.7 rocker's to suit to arrive from the state's.
i just noticed that they recomend you change the dizzy gear, hence the trip to the ford dealer.

cheers steve.k.
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 Post subject: Re: v8 dizzy gear.
Posted: Wed May 27, 2009 11:39 am 
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Is it a -8 cam or -9?
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 Post subject: Re: v8 dizzy gear.
Posted: Wed May 27, 2009 1:29 pm 
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XR9UTE wrote:
Is it a -8 cam or -9?

it's, 35-351-8.
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 Post subject: Re: v8 dizzy gear.
Posted: Wed May 27, 2009 8:14 pm 
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Oh dear. Had nothing but trouble with their -8 cams. Those are made from austempered iron rather than a steel billet. You will definitely need to change your gear because the stock steel one will eat it like it's butter.
I would use the exact gear they recommend and follow the dizzy gear setup instructions in the Ford Racing catalog to the letter.
Having said all that I did and it still ate the cam gear!? and that was on three engines!?!
And use a bottle of their special zinc additive.
Comps response.....None!
I switched to a steel -9 using a stock gear...no trouble whatsoever!
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 Post subject: Re: v8 dizzy gear.
Posted: Thu May 28, 2009 12:33 am 
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thanks for the info :? i'll forward it onto the installer when i chat to him next.
what price is the -9 cam ?
cheers steve.k.
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 Post subject: Re: v8 dizzy gear.
Posted: Thu May 28, 2009 12:46 am 
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I think the -9 was around $400 which was about $60 more than the -8.
I only stayed with comp because no-one else would actually do a reduced base roller for a windsor!?!
As yours is a 5.0 you don't have stay with them..
and btw the other engine was a 5.0 and they still had no comment when I asked why they supply a -8 for an engine they already know comes with a steel dizzy gear!

Good luck Steve.
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 Post subject: Re: v8 dizzy gear.
Posted: Thu May 28, 2009 12:53 am 
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i have to drop the 1.6 rocker's back to him (as i orderd 1.7's) to suit the cam , so will see if i can change the cam to the -9 while i'm there :wink:

thanks again for you help, it may save some anger & $$$ down the road.

cheers steve.k.
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 Post subject: Re: v8 dizzy gear.
Posted: Fri May 29, 2009 6:47 pm 
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Try a replacement 351W Mallory gear, which gets the correct ID and OD for the 5.0. From memory their literature says the replacement gears are compatible with all but steel camshafts. I looked into this about 5 years ago, so it may pay to check it's still the case.

 

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