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Old 01-30-2008, 11:34 PM   #1 (permalink)
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I'm in the process of beginning to put together a Timing Belt to Timing Chain conversion kit for our B18 motors. What I need is all tolerances, measurements, clearances of the B18A-B, B18C1, and B18C5 motors.

I also need schematics of the timing chain assembly on the K Series/F20C motors as a reference point. If anyone has a spare motor they do not need, or some spare cam gears lying around, I could really use them for test and mock-up purposes.

I see this as a solution to the troubles of constantly changing timing belts on our cars every 50-60k miles. And a very good investment for people who have put upwards of $10,000 into their motors and need a good, stable, cost effective solution to buying aftermarket timing belts.

All questions are welcome.
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Old 01-30-2008, 11:38 PM   #2 (permalink)
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this would so kick ass if you could get it to work. But wouldn't you need to make a custom crank pulley?
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Old 01-30-2008, 11:45 PM   #3 (permalink)
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Yes, a custom crank pulley would be needed. I was thinking along the lines of a specialized crank pulley where the chain drive was a self-sufficient system, running only the timing "sprockets", but allowing the water pump to be run by it's own belt, allowing for easy maintenance of the water pump as needed without having to remove the Chain Drive.
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Old 01-30-2008, 11:48 PM   #4 (permalink)
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it sounds like it could cost more than its worth but im subscribed.
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Old 01-30-2008, 11:55 PM   #5 (permalink)
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Well when you only have to change the chain every 150-200k miles, compared to paying up to $60 for a timing belt every 50-60k miles, it's long run cost effectiveness is greatly improved over it's alternative.
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Old 01-31-2008, 12:25 AM   #6 (permalink)
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and how do you plan on lubricating the chain?
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Old 01-31-2008, 12:32 AM   #7 (permalink)
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I am looking at trying to construct a self-lubricating assembly.It'll have to be drawn out when I get an available spare block for mock-up and testing... Until then, without something to do use as a reference, I can give no set answer as to how the assembly will be lubricated.
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Old 01-31-2008, 12:32 AM   #8 (permalink)
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will also need a water pump too
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Old 01-31-2008, 12:33 AM   #9 (permalink)
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wouldn't the crank oulley have a hormonic balancer of some sort as well. Would a timing chain of a ivic SI work? at least use it as a good starting point, if that crank pulley fits on a teg then i would say you just saved a crap load of development time and money. i would look into that if i was you.
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Old 01-31-2008, 12:38 AM   #10 (permalink)
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That is a good idea, I will have to source one when I get a spare engine. I am trying to construct this kit with easily accessible parts for easy replacement when needed. If I could use OEM Honda/Acura parts that would help greatly and cut down on maintenance costs to user.
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Old 01-31-2008, 12:39 AM   #11 (permalink)
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Quote:
Originally Posted by 97JDMTeg on Jan/30/08
I'm in the process of beginning to put together a Timing Belt to Timing Chain conversion kit for our B18 motors. What I need is all tolerances, measurements, clearances of the B18A-B, B18C1, and B18C5 motors.So basically you want someone else to do all the difficult work for you?


Quote: 97JDMTeg on Jan/30/08 I see this as a solution to the troubles of constantly changing timing belts on our cars every 50-60k miles. And a very good investment for people who have put upwards of $10,000 into their motors and need a good, stable, cost effective solution to buying aftermarket timing belts.
Is there really that big of a market? I mean, how many people have actually put over 10 grand into a B series engine? And of those, how many would actually balk at paying $45 for a new belt?


I dunno, I'm not trying to rain on your parade, but it just doesn't really make a lot of sense. Good luck nonetheless!
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Old 01-31-2008, 12:51 AM   #12 (permalink)
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Quote:
Originally Posted by drcheap on Jan/31/08
Quote: 97JDMTeg on Jan/30/08I'm in the process of beginning to put together a Timing Belt to Timing Chain conversion kit for our B18 motors. What I need is all tolerances, measurements, clearances of the B18A-B, B18C1, and B18C5 motors.So basically you want someone else to do all the difficult work for you?

Quote: 97JDMTeg on Jan/30/08I see this as a solution to the troubles of constantly changing timing belts on our cars every 50-60k miles. And a very good investment for people who have put upwards of $10,000 into their motors and need a good, stable, cost effective solution to buying aftermarket timing belts.Is there really that big of a market? I mean, how many people have actually put over 10 grand into a B series engine? And of those, how many would actually balk at paying $45 for a new belt?

I dunno, I'm not trying to rain on your parade, but it just doesn't really make a lot of sense. Good luck nonetheless!

I was planning on getting the clearances and specs myself, but fi anyone would want to assist, I greatly welcome it.

And to the second question, It's not only for those who put money into their motors, it's also for the everyday user who doesn't WANT to have to spend $45 for a new belt every 60k miles or so. Yes, it doesn't mean they can disregard simple maintenance, but as a safety net for those that don't have the means.

It's for those people that want the piece of mind that if they are edging on the 60k mark that their belt won't break and leave them stranded and have to pay the costs of replacing their heads. I see it as a very optimistic market. For builders and everyday Integra owners alike.
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Old 01-31-2008, 12:57 AM   #13 (permalink)
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Isnt nissan sr20det motor run on chain
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Old 01-31-2008, 01:01 AM   #14 (permalink)
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I believe they are run but a Timing Belt. I am not sure of this, as I am not a Nissan motor expert.
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