adahutch Posted August 16, 2015 Share Posted August 16, 2015 Thought it was time to reduce some of those oil leaks on the crossflow engine. Ordered a new sump gasket set from Burton and set to. All stripped out cleaned new gasket and sealer and ready to go back together. Obviously had a good look at the crank checked for end float etc. ect. I noticed what i thought was some strange machining on the end caps of the conrods - never seen this before i would be interested to know if anyone else had?. Quote Link to comment Share on other sites More sharing options...
alexander72 Posted August 16, 2015 Share Posted August 16, 2015 very nice - looks quite ok to my untrained eye... Quote Link to comment Share on other sites More sharing options...
Lawrie Posted August 16, 2015 Share Posted August 16, 2015 My Haynes manual shows a big square block on the big end cap. Perhaps yours were cut down to save weight Quote Link to comment Share on other sites More sharing options...
Welly Jen Posted August 18, 2015 Share Posted August 18, 2015 I'd be worried about interfering with the crossflow self replenishing chassis anticorrosion system. Jen 2 Quote Link to comment Share on other sites More sharing options...
DanDud Posted August 18, 2015 Share Posted August 18, 2015 can you post a few more pics from different angles? It looks like there 2 lumps of metal casually thrown into the engine...... can't make any sense of it. Quote Link to comment Share on other sites More sharing options...
Dave Eastwood (Gadgetman) - Club Chairman Posted August 18, 2015 Share Posted August 18, 2015 Looks like some kind of crude attempt at knife-edging. Normally something done on cranks though. Quote Link to comment Share on other sites More sharing options...
Kingster Posted August 18, 2015 Share Posted August 18, 2015 Look like something I have never seen before! Very odd... Quote Link to comment Share on other sites More sharing options...
tisme Posted August 18, 2015 Share Posted August 18, 2015 Looks extremely odd - if not potentially lethal !! - there's some pictures of a crossflow conrod here http://www.oldskoolford.co.uk/ipb/index.php?/topic/72601-crossflow-conrod-lighten-and-balance/ and normally there's just a "hump" on the base of the conrod that can be slightly shaved and smoothed off to save a little weight and also to balance the rods out. Yours look like something extra has been welded to the base of the rods ! Quote Link to comment Share on other sites More sharing options...
SootySport Posted August 18, 2015 Share Posted August 18, 2015 You've been Tobeleroned! Quote Link to comment Share on other sites More sharing options...
adahutch Posted August 18, 2015 Author Share Posted August 18, 2015 Thanks for the replys - some of them Bl***y funny. I can't get my head round it either. All i can say is the engine runs very very well, could do with valve stem seals doing at some stage, could also do with carbs setting up but other than that very free reving and so far reliable. Quote Link to comment Share on other sites More sharing options...
jeff oakley Posted August 18, 2015 Share Posted August 18, 2015 I am with Dave on this, it appears to be a form of knife edging. I have never seen a big end knife edged, normally it is the crank webs. If it was running very well except for oil leaks then leave it alone. Quote Link to comment Share on other sites More sharing options...
Lyonspride Posted August 20, 2015 Share Posted August 20, 2015 Could it be some sort of balancing thing? On the standard engine not so important, but when you mess with these and take them to higher RPMs, I would imagine in quite important to make sure each one of those cod rods has the same weight. Quote Link to comment Share on other sites More sharing options...
Dave Eastwood (Gadgetman) - Club Chairman Posted August 20, 2015 Share Posted August 20, 2015 It is, but that's not how balancing the rods is normally done. Quote Link to comment Share on other sites More sharing options...
Evo,s 7SE Posted August 20, 2015 Share Posted August 20, 2015 just. run it. it's been fine up to now Quote Link to comment Share on other sites More sharing options...
litcoat Posted August 22, 2015 Share Posted August 22, 2015 This isn't a 1300 sump on a 1600 engine is it? The con rods catch the sump if it is, they have May be shaved a bit off to stop this happening. Quote Link to comment Share on other sites More sharing options...
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