Hello Steve, How hard is it to balance the carbs on a zed? What is the equipment required worth to buy?
Sunday, May 19, 2002, 11:37:25 AM, you wrote: >>Hi list, >> >>one of the welsh plugs on my 240z is leaking, its the one on the >>pasanger side closest to the firewall so it is farely easy to >>access, are these easy to change or should i get someone who knows >>what they are doing to do it? >> SL> Not difficult to do, but if your not sure perhaps get someone to help who has. SL> This is the procedure I've used with success: using a suitable drift, SL> tap on one edge of the welsh plug to eventually push it in (that's SL> right _in_) and you can rotate the plug 90 deg (so that an edge is SL> facing out of the block), then grab the edge of the plug with a pair SL> of multi-grips and lever the thing out. Don't worry if you knock the SL> whole plug into the block, it can't go far..... SL> Putting the new plug in is just a matter of making sure all mating SL> surfaces are clean (esp in the block), smearing the edge of the plug SL> with some silcone sealer (_small_ amount), then tapping the thing in SL> place using something like a socket that closely matches the ID of SL> the plug. Try to keep the thing as square as possible. SL> Few other things to think about: SL> 1. if one plug is leaking the rest will be in a similar condition, or SL> close to it.....so perhaps do them all (??) SL> 2. use brass welsh plugs as replacements - the ones on the side of SL> the block are 35mm OD, from memory. SL> 3. it will probably be easist to remove all the manifolding to get to SL> the plug (I'm assuming a RHD car here). It is _very_ common to find SL> the rear exhuast manifold stud to be broken, and sometimes the front SL> as well..... >>Also I have the standard twin hitachis on it and was wondering >>whether it is worth reconditioning them or whether I should just get >>some webbers? its a pain atm to start as it just keeps dying like >>its starving for fuel... And just another thing, sometimes you >>reveal alot of problems when you steam clean your engine :) I've had >>both heater hoses go on me... maybe this could be a vacuum pipe or >>something too? SL> The Hitachi 'SU's' are actually a pretty reliable carb, and not bad SL> as a performance carb either with the right needles, even on a SL> 'worked' L28 (there are a few examples of 100+ RWkW engines in the SL> NDSOC using these carbs). Personally I would say that, unless your SL> engine is highly worked, I would stick with the SU's (of course, if SL> they are totally knackered that is a different matter, but a good SL> set of triples is going to set you back around $1000). One of the SL> problem areas with the Hitachi's is that the throttle shafts and SL> bushes wear leading to leaks and erratic running, and this can be SL> expensive to repair. SL> If the engine hoses are this bad, I'd suggest going over the thing SL> with a fine toothh comb and even complete replacement (consider it SL> insurance....) -- Best regards, Bob mailto:[EMAIL PROTECTED] --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
