01 Aug 2014, 10:44
Hi guys! Back from vacation. Thanks for the <a href="http://vvjaavon.com">feedcabk</a>. About the rods: this engine is in fact a pukka 1971 engine that has been shelved for all these years in the UK. It was just assembled for us to use, and we were'nt even aware of the rods. It will be rebuilt with prepped std rods as we have a set around. Contamination was found in the oilways on the crank, so we assume this was to blame. Where it came from, we don't know. But if this had been std Imp rods, I'm quite certain we would have yet another total Imp-blowup meaning throw away everything from the clutch backwards including the ancillaries that get hammered by flying parts.As for price, machining/prepping engine parts in Norway is a lot more expensive than elsewhere, an just finding somebody with the know how and time to do it is nigh-on-impossible unless you can wait for a year or two. For example, boring out a std block, no liners etc is roughly EUR 200-250 per hole. Double that for liners plus parts cost. Apart from that, try to find a historic engine not running modern parts inside, or using prep techniques that were not available back then. Rolling roads using modern computer technology to set timing/fueling isn't really correct either is it?
03 Aug 2014, 16:12
Ooops usually there is a <a href="http://moczou.com">reaosn</a> for rod bearing failure, and that has actually nothing to do with the oil pressure. Go and check what is happening in the combustion chamber and see if there is any signs of detonation, usually in the squish band at the opposite side of the spark plug and in the piston above the top ring. Anyway, hope you can get it sorted.I like to have that kind of nice steel rods as well, but as we have a FIA historic (G2 Gr2) Imp those non-standard origin rods are not allowed in FIA historic classes of any period so we need to stick with the modified std rods :(
05 Aug 2014, 16:37
A total mystery block, crank, rods, oil pump and<a href="http://qvgfmmlh.com"> ptnoiss</a> were all brand new, yet the nr 1 con rod big end was obviously starved of oil, and quickly got cooked. We are looking to have the engine re-built locally in d8stfold hopefully, the engine man can find out why this happened and, fingers crossed, if the crank can be re-used after cleaning up.