Hi, Anyone know what the thread is for the bellhousing and timing belt cover wading plugs ? Thanks
Steve
200Tdi wading plug
Oct 05, 2005
6 Replies
The OD of the thread measures 13.50mm. This is 0.3mm over the 1/4" BSP thread diameter, but may well be a 1/4 BSPT thread. With only three full turns of thread on the plug I have, it's too short to tell.
M14 perhaps then ? Though I've got a 1/4BSP die. Thanks John.
Steve
It is now...
Steve
On or around Wed, 05 Oct 2005 22:37:43 +0100, Steve enlightened us thusly:
I'd expect it to be metric on a TDi, everything else is.
Is it tapered? Is it used without a seal?
Most likely 1/4" NPT. 18 threads per inch.
Whipped a 1/4/BSP tap through the 4 threads in the hole, and it barely cut anything but the corrosion in the threads. M14 is probably the real thread, but the difference seems to be miniscule.
Thanks for all the help.
Steve
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