The Fordson Tractor Pages Forum

I have just purchased a new exhaust manifold, as explained elsewhere I will be unable to look at the tractor for some months and would like some comments.
Are they fitted with studs with washers and nuts or are they bolts?
What is the thread in the head?
If studs how long is the thread in the head? and the overall length?
If studs, are brass or bronze nuts better than steel?
What are the chances of removing the old bolts/nuts? Should I take tools to drill out and retap threads and/or helicoils?
regards
phil

Hi.

The manifold should be fitted with studs, washers and nuts.

Studs are 5/16" x 24tpi each end and 1" 5/16 length

Fitted with a flat washer and a brass 5/16" nut

As for removal of the old ones,I would certainly take drills and easy out's as would think there is a fairly strong chance of snapping the studs.

Hope that helps.

Hi Mark
That is everything I wish to know.
I will give it a try with penetrating oil but past experience suggests drilling out will be needed.
regards
phil