I may be building B series cam gears..read
Thread Starter
Honda-Tech Member
Joined: Dec 2001
Posts: 380
Likes: 0
From: Probably somewhere in an EF
Read this thread and you'll get the jist of what's going on.
http://honda.hybrids.jp/forum/showfl...5&o=7&part=all
http://honda.hybrids.jp/forum/showfl...5&o=7&part=all
Thread Starter
Honda-Tech Member
Joined: Dec 2001
Posts: 380
Likes: 0
From: Probably somewhere in an EF
I assume that you are asking about 88-91 SOHC motors? The main problem is that every one of those D series motors has the stamped sheet metal Zinc plated unit. It's not a good enough piece to modify. Plus, it's a 38 tooth gear.
AFAIK, F22/D16A1/old 12v EW3/4 motors use a 40T, B series and ZC use 34T. All of those gears are not stamped sheet metal parts and they can be made into adjustable units.
To keep the cost down (and the reliablity/strength up) I'm using the factory Honda units as cores and modify those, much like old Mugen and Spoon units. I couldn't compete with any of the existing manufacturers price if I have to build a complete gear from billet material.
Do any of you know of a Honda 38T cam gear that is a die cast unit (they have spokes). If so, no problem, we can do that.
AFAIK, F22/D16A1/old 12v EW3/4 motors use a 40T, B series and ZC use 34T. All of those gears are not stamped sheet metal parts and they can be made into adjustable units.
To keep the cost down (and the reliablity/strength up) I'm using the factory Honda units as cores and modify those, much like old Mugen and Spoon units. I couldn't compete with any of the existing manufacturers price if I have to build a complete gear from billet material.
Do any of you know of a Honda 38T cam gear that is a die cast unit (they have spokes). If so, no problem, we can do that.
Honda-Tech Member
Joined: Feb 2002
Posts: 2,089
Likes: 0
From: Honolulu, Hawaii ---->Cascades Oregon
-TJ your link article said something about sending your stock b-series camgear to you and you can make your adjustable one! what else do U need! I'm would love to have a custom camgear like the one in the photo! let me know!!
and do you need em asap!
and do you need em asap!
Trending Topics
Thread Starter
Honda-Tech Member
Joined: Dec 2001
Posts: 380
Likes: 0
From: Probably somewhere in an EF
Yeah, I'm trying to get the custom gears thing off the ground. The ones in the photo are for my D16A1. Since the B series ones are smaller with only 4 spokes instead of 6 they've gotta be done a little differently.
If you're in, then there's only 8 more to commit. Don't get too hasty with sending them yet. I want to be sure that there's enough serious interest. Send me an e-mail and I'll keep you posted.
-TJ
schmtj@ispec.com
If you're in, then there's only 8 more to commit. Don't get too hasty with sending them yet. I want to be sure that there's enough serious interest. Send me an e-mail and I'll keep you posted.
-TJ
schmtj@ispec.com
Thread Starter
Honda-Tech Member
Joined: Dec 2001
Posts: 380
Likes: 0
From: Probably somewhere in an EF
Acually I was refering to a D16Z6 or D16Y8 cam gear.
I need to hear from committed buyers before I commit my $2000 in 20 cam gears. If there is enough interest, I'll go ahead and have a set made. This isn't the first time I've made my own Honda cam gears out of OE originals, so I'm not at all concerned with testing.
The only issues that need to be addressed with an adjustable gear are:
1. Screws not loosening/hardware failure
2. Concentricity between the hub and belt surface
3. Part wear
#1 has been proven in past applications. The first cam gear I ever made adjustable is now running on an EP first gen. CRX EW4 motor AFAIK. I sold him all my 12-valve stuff a couple years ago. He blew the motor, but still uses the gear. All the fasteners are grade 10.9. Check out the washers I use:
http://www.schnorr.com/washer.html
Serrated on both sides to prevent hardware backing out of the threads. If you're still worried about it, use a drop of mild loctite.
#2 Since the inside of the outer belt lip is not a nice flat surface, another part of the gear must be used to maintain concentricity between the sliding adjustable part and the belt surface. The adjustable section incorporates a new hub - the old hub is bored away leaving a precision surface for the 7076 part to register concentricity to. This is the only way that a B series gear can be transformed into an adjustable unit, and the same way Spoon does it. I just do it cheaper.
#3 The parts of the gear that are not OE Honda are going to be made of 7076 T6. Hard stuff so the keyway doesn't get sloppy. Keeping the OE belt surface there is no worries about the belt eating away the teeth like the last generation of AEM gears.
[Modified by -TJ, 12:23 PM 7/13/2002]
Thread Starter
Honda-Tech Member
Joined: Dec 2001
Posts: 380
Likes: 0
From: Probably somewhere in an EF
I see...that is promising. So, the Y7 and Y8 gears are 5 spoke? You don't know how many teeth are on them do you? From the pic I can see that they'll have to be built just like the B series since the inner edge of the teeth is not smooth
B series use 34T gears - 4 spokes, and I'm 95% sure that the ZC uses the same - a set is being shipped to me...
B series use 34T gears - 4 spokes, and I'm 95% sure that the ZC uses the same - a set is being shipped to me...
Thread Starter
Honda-Tech Member
Joined: Dec 2001
Posts: 380
Likes: 0
From: Probably somewhere in an EF
Ok...most D series. The D16A1 is one exception - the ZC another. I'm going to guess that it's a 38T cam gear. Please verify when it cools off, or park in the garage!!!
Looks like I need to do a recon mission to the local junk yard and pick up all the cam gears I can find........
Looks like I need to do a recon mission to the local junk yard and pick up all the cam gears I can find........
Thread Starter
Honda-Tech Member
Joined: Dec 2001
Posts: 380
Likes: 0
From: Probably somewhere in an EF
THanks, looks like I can break into the D series market after all. I'll work on it and see if I can make them for the same $ as the B series.
-TJ
-TJ
may i ask you where you get your allen bolts? Are they the same as the AEM ones?(thread pattern/length)? Im just asking this cause my AEM bolts are stripped and one is missing, if so, can i get 3 of them from you?
Thread Starter
Honda-Tech Member
Joined: Dec 2001
Posts: 380
Likes: 0
From: Probably somewhere in an EF
I don't know what AEM uses, but I use a grade 10.9 M6 button head. There's a beveled dual action serrated washer I also use to discourage the fasteners from backing out. What length do you need?
Thread
Thread Starter
Forum
Replies
Last Post
turbohenry
Honda Civic / Del Sol (1992 - 2000)
3
Mar 29, 2008 05:18 PM



u can kinda see it here

