Bolt Sizes

NIC SURRY · 24-12-2011, 12:14 PM

Could any one please confirm the engine bolt diameter and length for mounting an XR2 direct (no lifter)on a Phantom 19 Hull,mine has a course thread bolt and I think ? fine thread are more suitable or please correct me if wrong.Nic

Tony Davis · 24-12-2011, 12:17 PM

how thick is the transom?

OCRDA · 24-12-2011, 12:31 PM

Quote:

Originally Posted by NIC SURRY

Could any one please confirm the engine bolt diameter and length for mounting an XR2 direct (no lifter)on a Phantom 19 Hull,mine has a course thread bolt and I think ? fine thread are more suitable or please correct me if wrong.Nic

They are supposed to be 1/2" UNF and what you have are probably 12mm, Long enough to reach and be double nutted I think the Merc nearest are 4 1/2" (might be a bit short) and 6" (might be a bit long)