Mazda 121 1.5 sohc engine, can i adjust the tappets,or are they hydraulic?

ZJ Limited

• 17989 Answers
• Posted on Nov 01, 2010

SOURCE: My 2000 Mazda Etude 1.6AC tappets are ver noisy.

If it is the tappets then, get yourself a good flushing oil follow instructions, then get yourself some 0/40 mobil 1 oil and changew the oil, if the tappets are still nosiy, then you got lots of money to pay out sorry but they are hydraulic and cost and arm and a leg to do thats if it is the tappets.

A flush, and a change of oil and filter (only use a genuine Mazda one) normally does the trick. Replacement is expensive, but I have read of people taking them out and cleaning them.

They work like two tin cans, open at one end.. one just slightly larger and sliding over the other so you have a sealed unit. At one end is a one way valve, just a small hole with a sprung loaded ball bearing to seal it. any dirt in there, and the valve won't seal, and the HLA won't pump up properly. this gives enough clearence to make the telltale ticking noise.

Keep us updated.

SOURCE: mazda 121 manual gear box stuck in gear

What do you mean "rooted" ?
Generally if a manual transmission is stuck in gear it points to one or several of 6 possibilities ( barring any damage to hard parts such as gears or shafts.)
1: Damaged shift linkage.
2: Worn clutch.
3: Faulty clutch slave cylinder.
4: Damaged fork assembly.
5: Damaged synchronizers.
6: Bad throwout bearing.

Be prepared for sticker shock when pricing repairs or parts !
Mazdas are not cheap to buy parts for or to work on.
( thats why I will never own one )

SOURCE: my mazda soho 121 1998 model speed can only go up 120

speed limiter most likely its a device they install to stop you being able to speed they also make rev limiters, or your engine can only go that fast which i doubt cos 130 pretty low for an engine stop at

SOURCE: i have a mazda 121

i have a mazda 121 bubble 91 model what screw gose up and down and witch one gose in and out