Scoota G Posted September 29, 2010 Posted September 29, 2010 Well i love long projects. This is not one. Dale bought an N42/N42 off Dimitri and we stripped the cylinder head off on the weekend, hmmmm not bad condition with a fair amount of Carbon on the valves. So we took it apart and cleaned all the pistons, bores did not require an overbore so a quick hone and... Quote
Scoota G Posted September 29, 2010 Author Posted September 29, 2010 ...in went a fresh set of Chrome Moly rings and the head was decarbonised. Quote
Scoota G Posted September 29, 2010 Author Posted September 29, 2010 Then a quick lap wash/ grind using my Spoon Bending Mind control technique. Quote
Scoota G Posted September 29, 2010 Author Posted September 29, 2010 Also a new set of conrod bearings were fitted, hmmm Then what to do... "i know" said rob who had dropped by to help... "why not just bolt it back together" "Excellent idea" i said, so we did. 12hrs well spent i say Quote
NZeder Posted September 29, 2010 Posted September 29, 2010 Nice and early high Nickel N42 to boot Quote
Scoota G Posted September 29, 2010 Author Posted September 29, 2010 Does anyone know why the exhaust valves would marked with an S ? It also has dished pistons. Quote
RB30X Posted September 29, 2010 Posted September 29, 2010 When you regrind the valve seat like that (backyard style) don't you put the valve in the right way with the grinding paste on on the seating surface then spin? You look like your doing it the other way around. Quote
Scoota G Posted September 29, 2010 Author Posted September 29, 2010 When you regrind the valve seat like that (backyard style) don't you put the valve in the right way with the grinding paste on on the seating surface then spin? You look like your doing it the other way around. Hmmm no thats the holder you can see in my hands there ;D we are country here but not that country. Quote
madz Posted September 29, 2010 Posted September 29, 2010 Well done Scoot! Love your show and tells The valve lapping looks normal to me, It looks like a stick with a suction cup on it attatched to the valve that is resting in the seat. Fun job Quote
NZeder Posted September 29, 2010 Posted September 29, 2010 Does anyone know why the exhaust valves would marked with an S ? It also has dished pistons. All N42/N42 and F54/N42 combo's I have see have dished pistons. This so the engines have 8.8 CR and run on low RON Unleaded Petrol Quote
FuzzyDropbear Posted September 29, 2010 Posted September 29, 2010 Good work Scoota, thanks again for letting me hang around and annoy you for the whole day, learnt heaps Quote
Surly_Z Posted September 29, 2010 Posted September 29, 2010 Good to see my old engine nice and shiny! And not blowing smoke clouds... REALLY BIG smoke clouds! Quote
luvemfast Posted September 29, 2010 Posted September 29, 2010 Pretty quick turn around there Mark. What did you do in regards to water and oil pumps, timing chain and all that other guff? Quote
Scoota G Posted September 29, 2010 Author Posted September 29, 2010 Pretty quick turn around there Mark. What did you do in regards to water and oil pumps, timing chain and all that other guff? I had a nice selection of parts from two other motors, one with new timing gear. I'll get video of the start up tomorrow Quote
Scoota G Posted September 29, 2010 Author Posted September 29, 2010 Good to see my old engine nice and shiny! And not blowing smoke clouds... REALLY BIG smoke clouds! This engine is a bit of a mystery... someone set the crankshaft/ camshaft timing wrong at some stage and it has two tiny dents in every piston. The cylinder head must have been replaced. I have a lot of confidence in this motor and look forward to firing it. Quote
Moderators Zedman240® Posted September 29, 2010 Moderators Posted September 29, 2010 You'll have to record this event and post it on youtube in your classic way.. you make it look so easy! Quote
dalee Posted September 29, 2010 Posted September 29, 2010 Can't wait to move Mustard (AKA the slug), and properly try out the modified valve body in the auto and hear the new 2.5 exhaust system and hpc coated headers working without raw oil coming out the exhaust pipe. Scoota and Rob have done a power of work considering we only took the head off the block Sunday evening. (Thanks guys) and this motor received one of my spare 240 A grind cams, it had a B grind in it!. I am keeping the 74 cam and e31 head for another high comp motor which will happen as soon as orange is back on the road. Quote
Scoota G Posted September 30, 2010 Author Posted September 30, 2010 Hey thanks for the encouragment guys. Naturally we have to Doll it up a bit with some fresh clothes. This sould keep you guys entertained until i shoot a video tonight Quote
luvemfast Posted September 30, 2010 Posted September 30, 2010 Is there a steel plate between the extractors and the head? Why? Quote
bryan3976 Posted September 30, 2010 Posted September 30, 2010 hi this is a l28 right how did you mount your oil filter with out the right angle bracket ? Quote
NZeder Posted September 30, 2010 Posted September 30, 2010 You mount the oil filter with a oil stud replacement - I have the part number (will post when I get home from work) last one I purchased from Nissan was under $10 Funny NZ money. Quote
NZeder Posted September 30, 2010 Posted September 30, 2010 15213-21001 - is the oil filter stud part number - you can get the same stud from a RB or L24/L26 and other Nissan engine too Quote
benny Posted September 30, 2010 Posted September 30, 2010 you only need the right angle adapter in the 280zx otherwise it fouls on the p/steering.... or as luvemfast and myself found out you can get a shorter RYCO FIlter!! Im sure simon will chime in with the part number!! Quote
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