-
Posts
3,442 -
Joined
-
Last visited
Content Type
Profiles
Forums
Store
Articles
Gallery
Events
Library
Everything posted by JohnCh
-
Momo quick-release jig (was Houston 420R Build)
JohnCh replied to williamwashere's topic in 3D Printing
Very cool! To aid discoverability, I moved this to the appropriate forum and also updated the title reflect the topic. Feel free to tweak that further by either clicking and holding on the title or clicking the ellipse at the top right of your post, then select Edit.- 1 reply
-
- 2
-
-
I would use an oil extractor to remove oil from the type-9 in my old Westfield. It's a little fiddly getting the tube down to the bottom of the case but it's a lot easier than cleaning up an oil slick of lovely smelling gear oil.
-
You're in good hands with Josh. He has a lot of firsthand build experience and has figured out some tricks along the way.
-
Caterham production tolerances can make these a PITA to fit. I've read that Caterham has suggested standard cap head bolts rather than the supplied shoulder bolts if needed. This allows the threads to sit closer to the bottom of the bellhousing through holes and free up a little clearance.
-
Remove them as a unit, and don't forget to first drain the gearbox to avoid an oil slick when the driveshaft yolk pulls out the back. It might be worthwhile to go through some of the build blogs listed in the post below for details on engine installation. Many have pictures and some have videos, which may help get a sense of the steps needed for removal. It's not hard, but space is a little tight. A load leveler will result in less cursing along the way.
-
@pethier what did Darren say about this when you contacted him? Was he able to clarify what's in place?
-
Important changes coming December 1 -- Please read
JohnCh replied to JohnCh's topic in General Sevens Discussion
The only step you have is the following, which was also the primary message on the alert you should have seen when you logged in: If that is confusing, click the link provided, then look at the email address which appears in the middle of that page. If it is your current email address, then you're good. That is the email address you will use to sign in and also is where you receive notification emails. If it's an old email address, then click "change" to the right and update it on the next page. The rest of the information was to apprise you of things that will look or operate slightly differently than they do today. This way when you visit the site after the update, you won't be surprised and incorrectly think there is an issue. -
Important changes coming December 1 -- Please read
JohnCh replied to JohnCh's topic in General Sevens Discussion
@32eachtime I'm not sure if this is sarcasm without an emoji, or if you really do have a question. Please clarify. Thanks, John -
Important changes coming December 1 -- Please read
JohnCh replied to JohnCh's topic in General Sevens Discussion
The expanded forum issue identified in my initial post has been fixed in testing. The list of topics in each forum will now appear condensed by default as it does today. To (hopefully) avoid confusion, I've struck through that item in my initial post and marked it as resolved. -
Given the criticality, I'm placing this as a sticky post in the General forum for the time being to maximize visibility. The migration to Invision Community V5 is scheduled to begin shortly after midnight PST on December 1. The forum will be offline for approximately one day while the upgrade is completed. This is a major platform upgrade, not a routine update. Think Windows 10 vs. Windows 8 or iOS 26 vs. iOS 25. Invision used this release to make significant changes to its underlying codebase, which means some aspects of the forum experience have changed. What You Need to Know You will now log in using your email address, not your username. Beginning December 1, the forum will require the email address associated with your account for sign-in. This change improves security because usernames are publicly visible, while email addresses are not. Please verify that your email address is current and update it if necessary: https://usa7s.net/ips/settings/ Failure to do so could leave you unable to access your account. The editor has changed. The editor toolbar is no longer customizable by the Admin, so some functions have moved or are now located within submenus. For example, to create a bulleted list, click the + icon and select Bulleted List from the menu that appears beneath. The Preview feature has also been removed. Invision's rationale is that the editor now functions as a live preview, with formatting changes such as bold, italics, and color displayed immediately as you type. Forum view is now permanently expanded. The Expand/Condense toggle remains available in the Activity Feed, but it has been removed from the Forums view. Thread listings will now always display a brief snippet of the opening post beneath the title. RESOLVED Unread Content has moved. The Unread Content link is now located in the top navigation bar, next to the Reported Content icon on the far right. Club Membership has been renamed. The navigation item formerly labeled Club Membership is now called Support USA7s. Club Membership remains available as a submenu under that heading. The home page has been redesigned. The layout has been updated to address usability issues present on mobile devices. Final Notes I've worked to keep the overall look and feel of the forum as close to the current version as possible. However, some differences were unavoidable because of changes introduced by Invision. After the migration is complete, please report any problems, bugs, or unexpected behavior in this thread so I can investigate and address them.
-
Another great video production by @CBuff. Love it! I particularly enjoyed watching the 4 second section starting at 1:33 on an infinite loop
-
There are no issues linking to another car forum. This isn't a competiton.
-
620 SV Accessories Partout - SV Half hood, SV Full hood, 4x Orcas/Avon ZZS, SPA mirrors, SV Doors, SV Aero Half Doors, SV Aero Screen, SBD CAN, Soft Bits Tunnel Bag, OEM 4-Point, 14" longacre rear view mirror, Soft Bits SV half doors (fabric), Momo wheel
JohnCh replied to CarYenta's topic in Parts For Sale / Wanted
@CarYenta, you have a PM! -
That might explain what happened to the left front wing...again!
-
@FasterThanVov I’ll reserve the username AlsoFasterThanVov for him. Just let me know when he’s ready.
-
Did Bruce bring CatKong with him, or at least proof of life? 😁
-
2026 Annual HPDE Hosted by NJMP Drivers Club - October 17/18, 2026
JohnCh replied to Croc's topic in National Events
I hope you all have a great time! I'm looking forward to seeing the pictures and reading the public shaming of those who failed to read the requirements before arriving -
Congratulations! It's always such a relief when the car moves under its own power for the first time. What's left before you call it done and venture out for a proper drive? Just the front wings and the passenger seat?
-
The harness for the coils is a known issue, and it behaves like you're describing when a wire develops a fracture. I'd start there. You might be able to find the offending wire(s) with a multimeter and some luck recreating the conditions or simply treat it like a wear item and replace it. Rocky Mountain or Beachman Racing might have one in stock.
-
@dsscats bought it a few months ago.
-
Raceline Zetec Sump (and topside oil extractor woes)
JohnCh replied to Slonie's topic in General Tech
Raceline can be incredibly slow responding to email. I'd call the tech line which goes directly to Peter (the sales number goes to Chris). It might take a few attempts, but he's very helpful when you get a hold of him. Since you are in CA, I suggest calling no later than 7am your time to increase your odds of reaching him. -
Raceline Zetec Sump (and topside oil extractor woes)
JohnCh replied to Slonie's topic in General Tech
The Raceline sump for the Duratec positions the dipstick tube so that it enters the sump beneath the windage trays. Circled in blue below. -
Congratulations! At some point, I'd love to hear your thoughts on how it compares to your old car given all the differences (chassis, engine, gearbox, wheel size, etc.)
-
The original extensions were PA12-CF, but I've switched to PET-CF. I want to maximize airflow and ensure the base is perfectly flat, so don't want to introduce the variability that comes with printing it in a different orientation. The new design should be fine, but if not, I'll go with the external ribs.
-
Looks good! One thing to know is that without a thick chamfer, the layer lines may start to separate from vibration where the base transitions to the tube. Even though I included these on the extensions I made for the Caterham, I failed to add a fillet in the small area cut out for the bolts. That was enough of a stress riser that two of them began to separate at that location after about 3800 miles. I don't have a picture of the revised parts I printed, but I took a similar approach with these airhorns I did for the Elan. If those don't hold up, I'll print the version I subsequently designed which adds ribs around the circumference. Not printed yet, but here is a screenshot from CAD.
