bayside blue

iTrader: (1)

ok so in my 91 i was able to just pull the hose off the brake booster and suck it up there but im trying to clean out the 92 and when i pull the hose off it dies.. so i had a friend give it a tad bit of gas to keep it from dying. it sucked up a tad bit then it died.. the we restarted the car and instantly it sounds like knock..

is there something i did wrong?

94mx5red

iTrader: (14)

I do not think I have seen a single thread saying seafoam is great, only issues.

neogenesis2004

iTrader: (12)

You probably sucked up too much, hydrolocked, and bent a rod. The brake booster line is way too big. It could literally empty that entire can in a second if you motor is spinning fast enough.

Braineack

iTrader: (62)

I hope this thread is a joke.

bayside blue

iTrader: (1)

it was running at just above idle.. and sucked up no more then .5oz

neogenesis2004

iTrader: (12)

In that case, I have no idea. I can't think of anything else that would cause your car to stall and then suddenly start knocking.

bayside blue

iTrader: (1)

and to throw out a new variable in the equation.. i just came back from pressure washing the engine bay...


i pulled my plug wires and found water on the bottom of the rear cylinder(1.6)

bayside blue

iTrader: (1)

ok just pulled the plugs and found that cyl 1 and 2 are fine, 3 was covered in oil and a tad bit of smoke came out of the cyl, and cyl 4's plug was cold while the others were hot

SKMetalworks

iTrader: (7)

replace your plugs and get back to us.

04 Miata

If the oil was on the outside of the plug fix the leaking cam cover gasket first.

p51hellfire

iTrader: (28)

ever get pics of that greddy.....?

bayside blue

iTrader: (1)

ok new plugs are in, along with new wires..

knock happens at start up. then goes away.. but comes back in small bursts when i rev the engine and the shifter shakes violently..

bayside blue

iTrader: (1)

ill get back to you with them soon.

Vashthestampede

iTrader: (17)

Are you sure its knock? Or is it the common valve tick we get sometimes? I would get ticking upon start up and occasionally during revs. Once I did the 2twisty flush its been good to go ever since, and that was when I first bought the car years ago.

kotomile

iTrader: (24)

Sounds like the lifters if it goes away right after startup, good call Vash.

OP - next time use a much smaller line. Trying to seafoam (much less keep the engine running) by going through the brake booster would be like drinking a coke with a toilet paper tube as a straw.

kenzo42

iTrader: (6)

Use the red one:

JasonC SBB

Probably more effective to put a few teaspoons down the plug holes (warm engine), let sit for 20mins, then start and rev.

bayside blue

iTrader: (1)

ive never heard valve tick before.. is it loud like engine knock?

bayside blue

iTrader: (1)

ive used the brake booster on my 91 with no problems many times.. i never stick the hose into the seafoam. just above it so that the sucking slowly pulls the water up to it

neogenesis2004

iTrader: (12)

Nope... I still think you need to do the tdc test. See if all 4 of your pistons come up to the same height.