Need help installing oil pressure guage

[CampbellsChunkySoupra]

sorry for such the novice question. i purchased a megan racing eletric oil pressure guage the other day and it came with a new oil pressure sending unit. what side of the motor is this on and whats the easiest way to get at it? put it up on a jack or from above? i searched the haynes manual inside and out and couldnt find anything relevent.

89 7m-gte if that makes any difference.

thanks!

-Tyler

 

[suprahooked]

sorry for such the novice question. i purchased a megan racing eletric oil pressure guage the other day and it came with a new oil pressure sending unit. what side of the motor is this on and whats the easiest way to get at it? put it up on a jack or from above? i searched the haynes manual inside and out and couldnt find anything relevent.

89 7m-gte if that makes any difference.

thanks!

-Tyler

Its right under the cps.

 

[CampbellsChunkySoupra]

ahhh. ok. so ill just take off the power steering bracket and the accordian hose for easy access?

thanks.

 

[figgie]

ahhh. ok. so ill just take off the power steering bracket and the accordian hose for easy access?

thanks.

basically, yes

but with that said, a word to the warning. Most gauges comes with 1/8" or 1/4" NPT. Toyota uses 1/8 BSPT for the oil pressure sender. NPT and BSPT are NOT under any circumstance, compatible. One is 18 threads per inch and the other is 19. That means crossthreading if you force one into the other.

 

[CampbellsChunkySoupra]

so what do u suggest doing? should i go about ordering a fitting that can somehow splice the two?

i tried to thread it into a spare 5m block that i had today just to see if it would fit and it would have had to have been cross threaded to fit. does this fit your description? its an m series block so are all of the fuel pressure sending units the same?

hm.

 

[yaitsme]

The difference is 1 thread per inch.

McMaster Carr sells the adapter you need.

 

[starscream5000]

Yes, there are adaptors for it out there.

 

[CampbellsChunkySoupra]

does anyone know the sizes for both ends of the adaptor? id like to pick it up on the way to school tomorrow and then have it before i have to go back. its simply for convenience, otherwise ill take my stock one out and measure the threads and pitch.

-Tyler

 

[yaitsme]

Toyota uses 1/8 BSPT for the oil pressure sender.

Your new sending unit's paperwork should tell you what size it is .. probably 1/8 NPT

 

[starscream5000]

In other words, if it's 1/8 NPT (most likely) then you will need a 1/8 BSPT to 1/8NPT adaptor.

 

[bowsercake]

maybe something like http://www.mcmaster.com/ part # 4936K408
http://www.mcmaster.com/itm/find.AS...DtlLink&fasttrack=False&searchstring=4936K408

Is that correct? Just trying to help this guy out.

 

[starscream5000]

That should be right if the sender for the new oil pressure gauge is 1/8 NPT. Awaiting feedback on this from the OP...

 

[CampbellsChunkySoupra]

sorry. class this morning. i plan on taking it out tomorrow. i have to head to work here in a bit and i dont have any other means of transportation at the moment. sorry to leave you guys hanging but ill get back to you when i take out the origional one.