Threads used on Alpines

[am99ey]

In the far past I have come across a list of threads used on an 1722cc Alpine. Can not find it anymore with the top/right search function.
Hoping to get a hint from someone.
I will use an oil filter OC25 with an oil change, but not sure if the thread on the filter is correct. The specification of the OC25 says "3 / 4"-16UNF-2B".
(I am not so familiar with the imperial measuring system... ¦-)

 

[hartmandm]

The threads on the oil filter block are 3/4" - 16 tpi (threads per inch). Check the gasket dimensions, too. Here are the specs on the Purolator L14670 filter which is compatible.

 

[am99ey]

The threads on the oil filter block are 3/4" - 16 tpi (threads per inch). Check the gasket dimensions, too. Here are the specs on the Purolator L14670 filter which is compatible.

View attachment 38128

Thank you a lot. OC25 states: OuterD: 71mm InnerD: 61.7mm . I guess that should be fine.

Oil is going to be ordinary 10W-40 (semisyntetic at least):
ACEA A3/B4, API SN/CF
Performance Level:
MB 229.1, VW 501 01/ 505 00
FIAT 9.55535-D2/G2

cheers, Andy

 

[bernd_st]

Oil type/viscosity is totally wrong. You should use good mineralic ( low or no additives) 20W50 instead...

 

[am99ey]

Thank you for all the information, they are very helpful to me!

 

[Shannon Boal]

Yup, 3/4-16" any gasket dimension which will match gasket OD/ID to the filter mounting base. Suggest good quality filter like WIX 51307. Any top shelf oil should protect your Alpine engine. I use Amsoil AME HD marine oil rated for gas and diesel engines. It has lots of corrosion protection for engines that sit. For lots of ZDDP, https://www.amsoil.com/p/amsoil-z-rod-10w-30-100-synthetic-motor-oil-zrt/

 

[Jay Laifman]

Maybe search for Whitworth. If I recall, one bolt related to the seats was believed to be a Whitworth. So maybe a discussion of that will lead to a more complete list.