Miata Turbo Forum - Boost cars, acquire cats. - 1.6 Built Head or Entire Engine?

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1.6 Built Head or Entire Engine?

Before I turbo'd my 1.6, the PO ran Mobile 1 in it and destroyed the front main seal, and weakened the valve guides as I now blow blue smoke under acceleration. The engine still compression tests very well.

Question is, if I pull the head to do the valve guides, is it worth it to just pull the whole motor, do the clutch (needs a stronger clutch) and Pistons/rods while I'm at it, for a mild engine build? I don't have money flowing out of my ears so I don't want to do more than I have to, but it's a classic "while you are in there".

is this a serious question?

also - what does mobil1 have anything to do with destroyed seals

Quote:

Originally Posted by 18psi (Post 1356726)

is this a serious question?

Sign off your computer and go do something productive.

Oh I'm about to do something productive alright

If there is only one thing that all the old timers agree on, and has never changed or been updated it is this:

Never spend money on a 1.6. Replace it with a 1.8.

This even comes before putting in a megasquirt.

Doubt the oil is what caused the seals to go bad.

If you're thinking pistons/rods... do know it also includes bearings. Might as well go with BE oil pump, water pump and timing, head refresh if you suspect valve guides to be worn. A machine shop would be more than happy to rebuild and refresh everything.

Or just grab a 1.8 & drivetrain and do the same, drop it in.

The ban finger is twitching...

Ds1, let's assume you've already decided that some major work is in order. You're talking about disassembling the valvetrain, and speculating about forged internals.

At that point, it'll probably cost you less to source a decent 1.8 engine and stick it in without any modifications, even after you factor in the cost of the new exhaust manifold. You'll make more power, and can finally rid yourself of the shame and disgrace of having a 1.6 engine.

Edit: I can see that the regulars beat me to it. :giggle:

Quote:

Originally Posted by DNMakinson (Post 1356748)

...I mean,

he's so far gone we're not even at the "ditch the 1.6" step yet

so many things wrong with the OP. what do the valve guides have to do with the blue smoke under acceleration and how does mobil 1 kill the seals? How many miles on your turd??

Do you realise the cost of building a motor? parts, machining, assembly?

i also agree that you should go with a 1.8 and not bother with the 1.6.

Quote:

Originally Posted by Joe Perez (Post 1356750)

The ban finger is twitching...

Great idea. Ban me for replying with a snarky comment to a snarky comment on a thread of posts flaming me for asking a direct question and suggesting something I clearly don't want. Gosh I love this forum.

Thanks to those who actually contributed.

To be fair, he literally asked for it.

I mean, people use the word "literally" out of context quite a lot, as in "OMG, I literally died."

In this case, the guy actually typed the phrase "Ban me for replying with a snarky comment," so I grant his request.

I figuratively laughed out loud

Joe has attempted to help this poor soul a few times...

Quote:

Originally Posted by Joe Perez (Post 1029486)

Business Plan

$5120.00 in raised capital is required. $5000.00 of which is to purchase cats. The extra $120.00 will go towards purchasing a metal briefcase to put the cats in. Like the ones you see in movies. I have not decided on what kind of cats yet but whatever young people are doing these days. I will then sell the cats at a profit and investors will be offered the profits back.

I once drove two hours to buy cats for fifty dollars that turned out to be parsley which I could have purchased from my local supermarket for around two dollars. This indicates not only a ready and willing market, but a markup of 2400% on the initial investment.

I also once paid twenty dollars for cats which had almost no effect. Many years later, I was told by the person who sold it to me that it was actually a dried up raisin they had found under the couch and had needed the money for cigarettes.

Return on Investment

Using the above formula of 2400% return, investors can expect a minimum $1200.00 return on a $50.00 initial investment.

https://www.miataturbo.net/attachmen...ine=1373311171

Purchase and Testing

Once the capital has been raised, I will advertise that I am in the market for a large amount of cats and have the funds to cover such. The small country village where I live, Adelaide, is rather barren at the moment and recent efforts to obtain cats have proven futile. As such, I may have to travel to Singapore or Thailand to purchase them.

I will test all cats offered prior to purchase.

I once purchased several cats that looked suspiciously like Pez. After testing one and feeling nothing despite waiting at least five minutes, I ate the remainder. A short time later, I found myself at an all night outdoor rave dancing to Paul Oakenfold and hugging what appeared to be animatronic Goodwill store manikins flagging down aircraft. At some point during the night I had my face painted with what I assume was meant to depict a dragon in full flight breathing fire but looked more like a child's drawing of a duck vomiting blood. Awakening somehow at home the next day, inside a fort I had constructed from seat cushions and a shower curtain, it took a four hour bath to remove the smell of damp arts-degree students and patchouli oil.