Danny123

all, thanks for your replies, only just finished working on it about an hour ago. The starter motor is a pre engaged motor and that was at fault. we got a second hand motor and put that in and all worked as it should with Alternator red connected to the same terminal as battery red. We just had the usual issue which drives you crazy which is, a part on the car was working before disasembly. then once re-assembled you find it no longer works, you start questioning if you really did have it wired up the way you remeber. it's a mystery to me thanks again all Danny H7 MFR Xflow

that must mean that theres an issue somewhere else then because when the alternator red is connected with battery red nothing happens. also nothing happens if the alternator red is disconnected completely. unless, could a dodgy earth cause this? H7 MFR Xflow

Colin thanks for your reply, Just tried that and all seems normal without HT leads in. something i forgot to mention, It only happens after the engine has been running for 15 seconds or so. after 15 seconds the starter motor starts spinning up and sounds like a drill. When the ignition is turned off, the starter motor is still spinner for 3-4 seconds. I think we have wired it up wrong but it doesn't work at all if we change the wiring around. I think it maybe something to do with the alternator feed that connects to it, ie it's not charing the battery up, it's just running the starter motor instead. just can't work it out. current wiring is live to solonoid. Big red live from battery to starter live and big red wire from alternator to the third connector which also has a small earth to the starter casing

not a caterham issue this time,,, it's a problem on my mates mk5 rs2000 We have put a replacement engine in and it starts fine but the starter motor won't switch off after the engine has started. Once the engine has started and the the key has moved down into the normal running position, the pinion on the starter motor disengages from the fly wheel but the starter motor keeps running. any ideas ? H7 MFR Xflow

slightly stealing the thread here but as im also thinking of doing the same thing, i was wondering about what to use instead of jubilee clicps? i have heard of "sring clips" which aparently expand slightly under presure but surely thats more risky?

thanks all,, loads of good advise. From what your telling me it seems like i have been overtightening as you say by a thou or so. If i do it like that again, i will boot my own ass out the garage

i must have misread your post the first time i read it. i just noticed the "add up to 9 rule" which makes sense but didn't spot it the first time

Actually, i've never been shown how to use one before my self but i didn't think there was that much to it? i have a 244cam in there so the clearences are .5 and .58 i beleive? and i have just been pushing down on the back of the tapet or push rod to lift the front of the tappet and then put the gague in and tighten as needed. is this the right thing to do? also can you explain that order of adjusting please as i have never really understood it and keep reading conflicting information. i have read to do it when the engines warm and then somewhere else with engine cold for a start which kinda worries me.

Silly question i know but i want to check to tappet clearences on my xflow but can't remeber the valve order. going from cylender 1 next to the thermostat and that valve being number 1, are the inlets 1/3/5/7 and the exhaust 2/4/6/8 ?

Thanks for all the replies Ric, i think thats what happened to him this time, he went there with 95 in the tank and didn't think it would effect him that much. He's going to run it through and then try some 99 or 97 and see how that goes. Dave, that would be great if you can let me know how you get on. He's supposed to be going to the rolling road soon but wants to know if its worth changing things first Roger, im supprised actually as he still has a record of the internals which are listed below. As far as engine spec goes, this is one of the engines that came from cosworth as i understand from the history of the HPC? pump jet 45 main 170 emul tube f16 choke 40mm idle jet 50/56 air 180 The main goal for him really is more low down grunt being more important than top end speed.

thank Alan, Its the VX HPC. I know that when it went through the SVA the carbs had different internals to help with getting it past the emissions test and then later on, the mechanic who built it recomended changing it for for more top end speed. I think thats why my dad is looking at changing them again.

Hi all, Posting question for my dad here. We did a track day yesterday and he thought he wasn't getting the best performance out of his HPC as all the power seemed to be at the top end around 6000 rpm. My crossflow seemed to be better performance around the track with better pick up out of the slow twisty corners. Would changing any internals to the 45's give it better low down power? and any other suggestions to achieve more power low down? H7 MFR Xflow

Spotted you on the the other side of the carrige way wearing a leather cap. i was on my way to find some twisty roads out of town :)

Just tidying up the engine bay today before the engine comes back and noticed a strange problem with wiring on the car. The earth cable that goes from the negative side of the battery to the engine block is melted slightly in the middle,, about 2cm long. Thing is, this is a replacement 8mm earth cable that i fitted in january as the last time this happened, the whole cable had melted. Any ideas? H7 MFR Xflow

Hi Alex, mine was the same i think and vulcan have converted it to unleaded. Also (with my limited knoledge, someone may have a full explanation) they are using a material for the seats which stops the big plume of black smoke you get from cold start up. The only thing i would say is the head will need skiming when its off and thats about 100 quid. Full head refurb work is then probably 200 quid but the thing to bear in mind is if you then do the block at a later date, the head will need skiming again. H7 MFR Xflow