I am in the process of rebuilding a TR4 engine to put in my TR2 and have been using the "Haynes TR2-TR4a Workshop Manual" and an original factory "TR2 Service Manual".
All has gone well so far, but I may have hit a snag.
In the "How to Restore Triumph TR2,3,3a" by Roger Williams, he states there are two types of connecting rod bolts, which I knew. What is news to me is that the ones used without locking tab washers are called "stretch bolts" and should never be re-used.
My 2 manuals say nothing at all about not re-using the non lock tab bolts, and he doesn't explain why not but simply says
"obviously it's essential that the stretch bolts are never re-used". Am I to assume these type actually stretch, get longer and do not return to their original length but retain the stretch? So they can't be re-used even with locking tabs?
Why doesn't Haynes talk about this? Help!!!!!!
John
All has gone well so far, but I may have hit a snag.
In the "How to Restore Triumph TR2,3,3a" by Roger Williams, he states there are two types of connecting rod bolts, which I knew. What is news to me is that the ones used without locking tab washers are called "stretch bolts" and should never be re-used.
My 2 manuals say nothing at all about not re-using the non lock tab bolts, and he doesn't explain why not but simply says
"obviously it's essential that the stretch bolts are never re-used". Am I to assume these type actually stretch, get longer and do not return to their original length but retain the stretch? So they can't be re-used even with locking tabs?
Why doesn't Haynes talk about this? Help!!!!!!
John