DOG_MORGAN Posted February 14, 2016 Report Share Posted February 14, 2016 The bottom bolt on the timming cover will not tighten down has any one got any help on how to solve the problem thanks billy Quote Link to post Share on other sites
Peter Cobbold Posted February 14, 2016 Report Share Posted February 14, 2016 Billy, It screws into a cast aluminium bridge piece that covers the front main bearing cap. Thread may have gone. To cure it properly means dropping the sump and replacing the bridge piece - I think steel ones are available. Peter Quote Link to post Share on other sites
DOG_MORGAN Posted February 14, 2016 Author Report Share Posted February 14, 2016 Hi peter would it be possible To Ali coil do you think if not where can you buy a new part thanks billy Quote Link to post Share on other sites
peejay4A Posted February 14, 2016 Report Share Posted February 14, 2016 I fixed one by drilling out to the next size up and retapping the hole then fitting a larger screw. Steel replacement blocks are available but I can't recall for the moment who does them. Quote Link to post Share on other sites
Peter Cobbold Posted February 14, 2016 Report Share Posted February 14, 2016 The steel ones come from USA: https://www.goodparts.com/shop/index.php?productID=489 Not sure about helicoiling the ali bridge, a new one might be quickest: eg http://www.rimmerbros.co.uk/Item--i-151134 Pter Quote Link to post Share on other sites
ed_h Posted February 14, 2016 Report Share Posted February 14, 2016 There is not a lot of material to spare, but Helicoils do work OK on the front holes of the bridge block. Ed Quote Link to post Share on other sites
oldtuckunder Posted February 14, 2016 Report Share Posted February 14, 2016 The bottom bolt on the timming cover will not tighten down has any one got any help on how to solve the problem thanks billy As others have said its the alloy block bridging the front of the block over #1 Main Bearing, the thread will have stripped as it needs far less torque than the ones onto the steel (although I think the manual fails to identify this). The bridge piece can be replaced by droping the sump. Jigsaw Racing in the UK make steel replacements I have one and they are good. http://www.jigsawracingservices.co.uk/development.htm However as a temporary fix that has worked for me and others, find an M8 Screw, cut it to the correct length "don't use an over long one otherwise you will have worse problems" The tapping in the alloy block is UNF (silly idea) a M8 screw is fractionally bigger and a corser thread, very often you will find that one of these will cut its own thread and pull the cover down nicely and prevent a leak. Don't over tighten! If this cures the leak then this will normally be fine until the point where you need to drop the sump for another reason, at which point replace the block with a steel one. Alan Quote Link to post Share on other sites
TriumphV8 Posted February 14, 2016 Report Share Posted February 14, 2016 I fitted several of the Jigsaw steel blocks. They had been around 33 Euros, worth every Euro because every block I removed was not plain! Bought some over WWW and met them at Stoneleigh. Also a clubmate made them earlier but for that price its better to buy them ready to fit. Reason to use them always was a lost thread like posted above. It was a going through hole and I dont know if that is normal. Anyway we connected the breather to the compressed air opened to 0.5 bars and let go. Than we retapped to 5/16 where the small parts of material are blown out of the hole. The car with that remedy is still in use. Quote Link to post Share on other sites
elclem1 Posted February 14, 2016 Report Share Posted February 14, 2016 TSSC have these for sale. Worth every penny. Quote Link to post Share on other sites
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