Vovchandr

And I thought we were supposed to be the "free" ones

Old home was better

Do you have a heater core? Usually it ends up being a high point in the system. During my troubleshooting I've bought the peak/prestone radiator flush kit which comes with an extra inline valve to install at the back of the motor and I've been happy with the amount of air that I can quickly release by using it https://www.amazon.com/Prestone-AF-KIT-Flush-Fill-Kit/dp/B000CCFY5W (or any parts store for blue Peak unit) Your system isn't pressurized? If that's the case the funnel can be a lot of use to you. I had to make my own adapter to fit my specific overflow but it fits most vehicles. I know mechanics use them all the time. Creates the high point, gives access, allows things not to spill during expansion and overall a very useful tool at my disposal. Allows to see bubbles come up etc. https://www.amazon.com/gp/product/B072BWG5GF/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 If my thread is any indication there is a million reasons why something overheats. Start small and go from there. Off the top of my head - Radiator blockage, running lean, air pockets, sticking thermostat, heater core blockage, blown head gasket, broken water pump, not functioning fan, blocked passage way in the motor and more. Does it only over heat while use and fine idling/parked?

Seems to be an interesting and controversial build According to the chat about it, it was a one off engineering and construction of IRS in the back of this thing and nobody is sure if geometry is well done No pictures either of the IRS https://www.gpsevens.co.uk/portfolio-item/caterham-superlight-r500-2-0-duratec-263bhp-6-speed-manual-2008-independent-rear-suspension-34995/

Oh thats right. Good call. I should do another scan while I still have the gun on the next run with the pressure cap.

This is #1, front most one. However referencing back the camera scoped pictures #1 and #4 did look the same - both looked clean. I'll probably test coolant again this time under pressure and make sure that bubbles are still forming and it's not just boiling (even though the temp was well below 85 according to gauge which is right next to the head in Tstat housing, but who knows, stranger things have happened). I'm a fan of the coolant filter gadget so far. I think I ordered it just one dimension too big but it works fine. Caught some material here and there and it allows me to have an eye on whats going on. You guys are very likely to be right about the valve springs. Stay tuned for next episodes of the head coming off.

Right. If everything goes right I'll start this week.

Small update. Still pending head gasket replacement over the next few weeks. In the meantime curiosity still has the best of me and I'm seeing what I can tinker with. Dumped the Prestone flush and refilled again. Cleaned the new coolant filter from a few contaminants, got the car back upto temp and saw this. Lots of air constantly being fed/circulated at idle as the car got warmer, eventually turning into a pretty constant air feed. The filter is certainly paying for itself here as a troubleshooting tool. Also gave some thought to my number 1 cylinder/ITB making loud "slapping"/mechanical noise. It's louder than all the other cylinders. For some reason I always wrote it off as the butterfly in the ITB making noise but it seems more likely that it's coming from the cylinder head and just being fed into the runner/butterfly. Anybody care to comment on this?

Courtesy of Facebook

This could be problematic

No real updates on the car as of this moment. Drove it around to get the Prestone ran again, refilled and drove again to be able to drain it again per instructions. Decided to look into the correspondence I have on the car. It appears that I have "Fast Road cam" in the head and it has gotten "stage 3 competition port and flow development" The engine appears to have been been "blue printed" and built with Carrillo connecting rods and forged pistons. Side note: Very happy with "JAL" LED tail lights. I wouldn't feel comfortable at all with clear lights if I didn't have that brightness.

Hm. We shall see what I'm looking at once the head comes off. I do know I have full intention of making it to NJMP this year again so if I need to source a local Zetec for a quick fix, I'll end up doing that. Watching this thread with curiosity however. I just cannot commit to a Zetec build. For me either I'll succeed with fitting SC for FI or I'll commit to a full Duratec swap/build since I already have the engine, but I can certainly appreciate a crazy build.

My broken toys, historically, don't have a quick turnaround time

Thats fair. Not sure why I thought this was Xenforo as well, got my wires crossed somewhere.

It was a bad argument. I changed the course of the post by the time I got to the end. I was under impression that the rating would show in the thread listing under the general category like it did on other forums, alas this was not the case. In the end I don't think it's hurting anybody. It's like the old laws on the books where it's illegal to eat ice cream on a Sunday while walking backwards in front of the capital. There are what maybe 5 members that use it and out of those 5 I was the 90th percentile for use? You're right, it's not particularly helpful or useful, but it's also not really hurtful (except for the aforementioned my sublime Oscar winning thread having such a poor underserved rating)

Also some here. Also time stamped

This should work. They show function at the end TImestamp @ 18 mins Center strip for turn signal. Block towards outer edge for rear foglight. Blocks towards inside for brake lights. Not sure on reverse.

I don't remember if it's part of standard package or you need to install an add-on but could we have a feed of gallery onto main page to give the gallery more visibility? I think I might even still have the addon downloaded in the library somewhere from a number of years ago if one is needed. Here is an example (no personal connection, just the first random forum I found that has it enabled) There are a number of settings and you can set it to auto rotate through random gallery pictures. I don't think gallery gets much traffic and it's easier to have random pictures fed than have to navigate through categories myself. There are other gallery tricks to make it more useful but that's another story. https://www.monstermuleys.info/xf/ https://xenforo.com/community/threads/media-gallery-breadcrumbs.194287/

Why can't I rate this topic?

Counter argument. GIFs are also used by few but give benefit to the many. The rating on vBulletin used to be a lot more prevalent and useful because it showed in the general forum and it allowed new users have their curiosity piqued as to what threads are the highlights at a quick glance, especially on a busy forum. I don't believe the rating shows here in the general forum where the threads are listed so it doesn't serve much function

Not so fast....the IMDB rating here is a little low Tough crowd

Will vanilla Zetec work with my Pectel ITB map, cams and modified timing? I dont think I can plug the vanilla ECU into my harness, but I could be wrong.

Brief search found these (sold individually) on eBay from a UK company of sorts https://www.ebay.com/itm/262501818413?hash=item3d1e53e02d:g:CMEAAOSwvg9XcpSu https://www.turbosport.net/ Are there recommendations for specific brands or they all do the same thing realiably?

That's good advice @JohnCh After a brief conversation with @Kitcat Mike I think I was lead down a reasonable path of research and conclusion. Without looking into it further yet, I've found some decade old posts by the great @1turbofocus describing how while SVT engine + head are better to start, it makes no sense to put just the head or even do the upgrade to the engine overall as regular Zetec can pretty easily match the SVT numbers with basic upgrades. That plus the consideration of going FI over the winter with the Rotrex leads me going down the path of fixing what I have to make it through the approaching track day before going with further upgrading. Currently pending getting ARP head studs (back ordered everywhere, checked with my mechanical guru and he said I can use OEM head studs and it won't be the end of the world in a pinch), new OEM head gasket and replacing whatever else that could use the love as needed once I'm there. Also pending a fresh tune once everything is sorted out. Tom said I'd need adjustable cam gears to get a good tune so will get that upgrade done while head is off as well. Would like not to get into another ECU unless I can get a bolt on affair. Really trying to avoid getting into rewiring things. Not sure what my options are. I've gotten an Omex unit with my Rotrex purchase but I don't believe it's an easy conversion. While you're right really old Pectel requires some finicking to work, the fact that it does work and there are means of tuning it, keeps me happy until it no longer works or tuner(s) demand otherwise.