Exhaust Studs 750SF

[chrissoz]

Purchased some new exhaust studs from Laverda-Paradise as the old ones were looking tired. The old ones have equal length threads on both ends and are 40mm, the new ones are shorter overall, 36mm and have  a shorter thread on one end.

I tried them with the longer thread into the head and screwed them fully home but that did not leave enough thread protruding to put the exhaust header flange and washer on.

So - have I got the incorrect part - I have rechecked the catalogue and the 36mm is definitely listed for the SF?
If I have the correct part which end should go into the head?
Any other tips - threadlock vs anti seize etc.

Thanks

Chris

 

[Tom Eatman]

Sounds like you got a set of inlet studs by mistake. These are 4 or 5mm shorter than the ones for the exhaust. The inlets protrude out of the head 18mm while the exhaust ones are 22mm. IIRC the exhaust studs have the same length of threads on each end but it should all be obvious if and when you have the correct parts to play with.

Tom

 

[Tom Eatman]

Oops, not enough coffee, didn't see the 750 bit until opening my eyes more... The SFs exhaust stud length is 40mm and the threaded length on both ends is 15mm.

Tom

 

[chrissoz]

Thanks Tom - that looks to be the problem - I think I ordered the wrong part not noticing the Inlet and exhaust studs were differnet items (althoug since I was ordering exaust rings and bolt I would have hoped Wolfgang might of noticed!). Will just chuck the old ones back in for now and get some new ones later.