Sparepart

This is great, just the sort of detail to keep me happy for a long time. Just for the "fun" of it, I am thinking of making a crude high current ammeter by having a coil of thin wire around a thick wire through which the high current will pass. Depending on the number of turns in the coil, I would hope to generate a voltage in the 0-5 v range that I can measure using a Raspberry Pi. This might then have sufficient granularity to generate the graphs of current against time for the spikes. A sort of cheap oscilliscope. Of course this will have to wait to the next lockdown. Anyway thanks for the document link, I now plan to replace the fusible link with a fuse with some sense of competence.

Thank you for your reply and the calculations and advice. My focus was on the current given out by the battery, I had not considered the alternator. I have done a bit more digging around, and am 99 percent in agreement with your notes. The only aspect that I think might matter is that of how long it takes the fuse/fuse link to "blow". Here, I think that the length of the link or type of fuse has an effect. I was thinking about two rediculous extreemes. If I used a very long fuse link it would not blow, just get hot and the high resistance would severely limit the available current in normal use. If I used a tiny tiny length of fuse link, then it would be able to support the accessories, but then blow when the alternator kicks in after a start. So the puzzle is that if a fuse rated to take the maximum possible current is used then it will be too high to protect the "normal" wiring for the accessories. That's why I think that the length of the fuse link matters, it is in effect a "slow blow" type of fuse. It probably gets a bit hot when the alternator kicks in but won't blow right away, it lasts intact until the the max current peak passes. I assume that this must be a short time ?, a few seconds/ (no Idea). Anyway that is why I would like to replace my fuselink with a piece of the correct length. The wire I need is available from the USA but I don't know what length to use. If I go over to using a blade or cartridge or other sort of fuse I really aught to use a fuse that mimics the "slow blow" characteristics of the original fuse link. Perhaps I am being too pernickety about this, after all I have several spare bottles of Lucas Loom Smoke in the garage in case any should leak from the loom. :-)

I am stripping out all the unused wires from the Sierra loom that has been used in the Exmo. I now realise that when I fitted the loom back in 1998, in my haste to finish the build, I cut out some of the length of the fusible link wire that connects directly to the battery positive terminal. At that time I was ignorant of it's importance and just thought it looked a bit flimsy. I now see (from the bit that remains) that it has "16GA FUSE LINK" written on it. I wonder if anyone know how long it should be ? as I would like to replace it. Alternatively has anyone changed it for something like a Maxi Fuse, and knows what rating the fuse should be ?. I looked at web sites that discuss this and they seem a bit vague about drawing an exact comparison between a length of fuse link wire and a fuse rating.

At the risk of being patronising, are we to assume that you have carried out some basic diagnostics ? that lead you to suspect the H.I.S.S. ring. I know nothing about Honda engines (so shut up then I hear you say) ... however a bit of Googling and I found a short Youtube that takes the viewer through a series of tests to attempt to isolate starting problems with a Honda engine. It begins with a check that the battery is up to the job, for example a poor battery can not provide enough voltage to the ECU when it is under load from the starter motor, the engine cranks but does not start. Then the video checks the plugs and ecu connectors etc etc etc ... the fueling system by spraying ether into the air intakes etc etc. The link is below. The superblackbird has the two wire diagnostic mode connector mentioned, that gives fault codes. Again, I apologise if you have already carried out this sort of investigation.

The way that the windscreen is attached to the scuttle looks unique, dissapearing through a hole. I have not seen that before on a RH.

Just a suggestion for something else to try, with a hot system, engine not running, in gear, handbrake off, rock the car back and fore, see if the same clunk occurs. It might help differentiate between a problem with the clutch release mechanism and some "play" in the drive train. For example, a defective spring in the clutch plate, pressure plate, worn spigot bearing, input shaft bearing.

Oddly enough I am right now looking at the lighting circuits as part of a rebuild. The 1986 Ghia donor had electric everything, so I am junking tons of wire. I can see that the headlights main beams (thick white wire) are not on a relay and have done 115 K miles so far through the stalk switches (two switches on/off and the dip/main switch). The dip beams (thin yellow) however ARE through a relay. I will be putting the main beams on a relay as part of the rebuild.

I managed to get mine punched directly to the right side of the drivers floor panel, about underneth my knee. There are challenges, one is to keep a nice straight line if that matters to you, the other is to get the punches the right way round, because when you look at the end it's like mirror writing, you need to think like a typesetter. I managed to get one of the characters wrong, a back to front B I think....... anyway no one complained at the SVA, and the MOTs have just looked at the plate that I rivitted on the bulkhead.

I apologise for any confusion I may have caused. I did say "Things have changed now I am sure, however the process went like this" i.e. just letting you know what I did a long time ago...... I enjoyed getting out the old file and putting the papers in time order ..... I should not have shared the history with you sorry.

Congratulations on your IVA pass, a major achievment. I am of the opinion that everyone that drives any motorised vehicle on the Queen's highway is legally obliged to have at least Third Party Insurance. (perhaps motor mowers and some agricultural vehicles are exempt). So if you have been to and from the test station without any insurance I think that you have broken the law, and I am on my way to make a citizens arrest. I looked at my paperwork from 1999 (yes a long time ago) to discover that in order to venture out I was able to get insurance cover for the Exmo by using the engine number as an identifier, I am looking at the cover note as I type. Things have changed now I am sure, however the process went like this. 1. Strip donor and record that all the bits used for the kit came from the one source. 2. Build the kit to minimum roadworthy state, my own safety test. 3. Insure the kit with engine number 4. Make allowed drive to a local MOT test station, obtain an MOT certificate using the engine number, I have a copy of this. 5. Fill in the form that explains where all the bits came from, now, with MOT and insurance, legally drive to local inspector to assess the origins of the parts. I don't think this bit is done now. I mean an actual physical inspection. Anyway the inspector assesed that the car could use an age related plate. AND issued the kit with the magic VIN number. This new VIN number is key. I make sure that this VIN is stamped on the chassis in a very permanent way etc. 6. When ready, after paying and booking etc ... take kit to SVA test station for the obligatory fail. 7. Return, with all the niggles fixed, and get a pass certificate. 8. Fill in the request for a new reg, USE THE DATE OF SVA PASS as the date of first reg and date of reg, send in request, along with the MOT certificate. 9 Received the V5C ...with new age related reg ... and my MOT certificate officially stamped with new reg in place of engine number. 10 Get plates made, put on kit and am happy ever after. Oh yes everyone needs insurance before renewing the road tax ... do you not have another car ? Happy motoring, also just looking at your handiwork must be great.!

Alvin, Have you performed a search for topics that might help ? https://www.rhocar.org/index.php?/forums/topic/13990-2b-bonnet-conversions-anyone/ This turned up in a search very quickly, it mentions previous posts on the subject which you should be able to find by searching. Try searching for "2b bonnet conversion" (use All terms rather than Any) it turns up 42 threads. It looks like lots of people have discussed this mod before.

Welcome to the club, I like your first post, where you say "letting me join" ... did you have to take a test or something I am not building the same car as you, however mine is very old with no build manual. At least I have all the parts because I bought the kit. I think that you have to be prepared to do some searching around the forums, so far I have found that most of my questions have been asked before, but obviously not all in the same place and at the same time. People will have stopped actively building your kit some time ago. At first I found the search function provided too many "hits". So if you try to search for "2b brake line" you get so many hits you could spenf hours going through them all. The secret is to refine the search using some of the filters, like change the default of "Any" of the terms to "All" of the terms, and remove forums like "For Sale" from the search. I did a bit of this for the topic of brake line routing and fastenings and found plenty of good advice and photos of installs that had passed IVA. In answer to your question about having all the parts, judging by the photo you posted you have more than enough pepper pot alloys.

I agree with Foz. You can probably just use the current wiring for your new compressor using it in all together mode. If you are using the donor wiring loom then unless it was from a really low end model of Sierrra, (Horn not on steering wheel) then there is already a relay in the fuse box that is being used, and a fuse. So it would be odd to wire up another relay from the current relay. I attach the Sierra horn circuit diagram, might be of use if you have this loom. You can see the horn relay and the fuse F6 which is a 15amp fuse. 47 is the relay, 48 the horn button. 36 is the cheaper option on some models, horn on the stalk switches and no relay. By the way, the two diagrams that came with the new horns are to cover the two options that could be faced by the installer. The top diagram covers the case where the horn switch provides the power (+ feed) to the horn and the horn is the route to earth(-ve). The bottom circuit is the other way round, where the horn switch provides a route to earth from a horn that already powered from the positive. You will notice that the sierra is using this latter case, the horn switch 48 provides a route to earth.

Quite similar to what I am attempting. I have found the Haynes wiring diagrams quite hard to follow AND do not exactly match what I see in front of me. I am also using diagrams from a french persons cloud site that Google turned up. I put the link below to download the pdf. The diagrams are for all the electrics, and in there are coloured diagrams for the bits in the engine bay, they seem easier to understand and so far more accurate. (however the power input pin for the ESC2, pin 8, near the top is miss-labeled as pin 13). Anyway you might find these diagrams of some use. http://www.jeankule.free.fr/Pinto/1982-1989.pdf

I mostly agree with the above, when you get the V5C and registration number the car will have an official date of first registration. This will normally be around the date of your IVA pass, and I believe the first MOT is then due three years after that. However, you should not use the car on the road without insurance. Anyone that needs to take a car for an MOT must have it insured, third party insurance allows you to drive TO a station for a definite timed appointment by the most direct route. My car is on SORN at the moment. It must be insured to take it for an MOT before I can tax it again.

I just did a quick search for (2b AND Zetec), loads and loads of hits .... many of no use to you right now, but one thread is from someone in your position from a while back, some photos of the conversion, etc. Link To Thread

Just a thought while the pre lunch fizzzz is in the grey matters .... why not take the fan switch and put it in with your boiled egg tomorrow and check that it switches on before the egg is ready?

Random, I am really interested to know how you have/are connecting the ESC2 into your loom and how much of the Ford donor loom you are using. Especially whether or not you are following the diagram referenced earlier in this post at:- https://nw.rhocar.org/Ford ignition systems.htm I am still using the whole of engine bay loom from the donor as fitted on the Sierra, and there are several more components in the original loom that do not appear in the simpler circuit shown in the diagram. Looking at the circuit diagram in the Haynes manual, there is another relay, a couple of suppressors and a connection from the power hold relay to pin 8 of the ESC2 module. I am thinking that if your simpler loom works then I might be able to remove some wires and a relay from mine.

Welcome. These "kits" are not like your high end ones (Caterham etc.) they are better (arguably) than starting with drawings and a welder but not much more. Were many other parts included in what you purchased?. You will notice from the build manual kindly provided by dandan62 that it has the air of a "suggestion" rather than an itemised A fits into B using the supplied bolts type of instruction list. Sometimes there are not even holes, and their exact position is a matter of your judgment. This is the attraction of these kits, they make you think, and when you succeed in getting things done, there is a real sense of engineering achievement. The previous builder has done some of this already, using his/her skills, so I think now would be a good time to assess the quality of the existing construction. Simple but important things like are the wheels aligned and positioned satisfactorily ?. Also the rear part of the car which is a "sales feature" being held on by "only four bolts" (quotes from the manual) is this nice and squarely mounted? and will the height of the rear part be ok with regs if you attach seat belts to it. It will be much easier to correct anything now, rather than later.

Just wondering what happens with emission testing at the next MOT after a change of engine ?

As well as retarding the ignition for a cold engine, the temperature is used to apply choke, and turn on the manifold heater. So it's pretty important.

At the risk of seeming patronising, it is essential to have good connection for the thick power cables that are used to feed the starter motor. Disconnect the battery at the negative terminal and follow the path of the connections from the positive terminal to the starter motor. I would pull apart each connection that is not permanently joined and clean the mating surfaces until bright and shiny before rejoining. Then smear vaseline on the outside to ward off dampness. Then do the same for the path from the starter motor back to the negative of the battery. This may well include a good thick "Earth Strap" between the engine block and the battery -ve, and the chassis and the battery -ve. Apologies if this is obvious and I seem to be stating the obvious. The other thing that is interesting in your account, is that you have spark at all but one cylinder and yet the engine shows no sign of starting ? at all? so how have you ruled out no fuel?

I have the luxury of a copy of the Haynes Service and Repair manual .... I found a copy on line some time ago... I am rebuilding using the original Sierra Gia model loom that had ALL the bells and whistles. I don't need most of the wire, but I am too cheap to just throw it away and buy a new purpose built loom. So I have been pruning literally pounds of weight out of the mass of wires, and in doing so have had to take care not to remove something I need. So to get to your questions. The manual says the Power Hold relay allows the stepper motor (it's what operates the choke) to operate for a short time after the ignition has been turned off, to ventilate the manifold and deter the engine from "running on". Running on is what it says, you turn off the ignition but the engine keeps running for a while, very annoying. As for your temperature guage question. There are two temperature sensors shown in the manual, I did not look on my engine because it's all wrapped in cling film at the moment. In Chapter 3, page 3.8 picture 16.3a shows a sensor screwed into the block just opposite the dizzy cap. This is the one that runs to the guage, in the wiring diagram it is item 30 "Coolant Temp Sensor". The other sensor, the one for the ESC module is item 58 "Engine Coolant Temp. Sensor" its located in the underside of the inlet maniford (Page 5.20, picture 19.4) it's a bigish plug just above the oil filter.

To answer your coil pack question. I think that I have found the circuit diagram, for the "Wasted Spark" pack used with Zetec ignition systems:- I assume you are measuring the voltage between 1,2,3 and a good earth (-ve). Pin 3 should be the same voltage as is coming from the ignition switch (terminal 15), I would have expected 12 volts. Pins 1 and 2 will be almost the same voltage as pin 3 because the primary windings are not big resistances. Also you say that only one cylinder seemed to have no spark ?. This would be unusual with this pack, as two HT leads should spark at the same time. One for a cylinder at top of compression and the other at top of exhaust.

Please, put me down for the modified wipers, and pm me with payment details when you can. Cheers Jan.